Verified
Reviewed byOleh Kem
Plans checked53 / 13 vendors
“Contact sales”13/53
Median entry$29/mo
Entry range$10.59-59
Free tier13/13
Leader94 Flowise

AI agent platforms compared: pricing, memory and self-hosting

A flat monthly figure on this market buys access, not the work the agents do, and most of these 13 platforms keep a second meter running underneath. We priced and scored each plan below from what the vendor publishes, and named the metered layer wherever one exists.

What do AI agents cost to run each month?

Entry pricing here spans $10.59 to $59, and $29 a month is typical across the 13, verified July 29, 2026. The flat fee buys access; most of these meter the work too, in tasks, credits, executions or tool calls. No unit converts into another. Autonomous agents and scripted runners share the word, not the billing.

  • Paid plans here charge the account rather than the person, so headcount barely moves the bill anywhere except Flowise and Devin.
  • Free access is on offer at 13 vendors here, and on several it is a self-hosted build you stand up and maintain yourself.
  • Full disclosure is rare here: the count that leaves no tier blank is one out of 13, with thirteen publishing any figure at all. An unpriced enterprise or contract step is the norm on this market, not the exception.
  • Under most of these flat fees sits a second meter counting tasks, credits per module action, executions, tool calls, predictions, browser time or agents left running.
  • No exchange rate exists between those units, so two platforms priced the same are not buying you the same thing.
  • Flowise holds first place with 94. That figure comes from what a vendor publishes and what its users say, and capability does not enter it.

Ranked by a transparency score: pricing transparency 60%, user satisfaction 40%. Capability is not scored. It is the condition grid below. Prices are read from vendor pricing pages and re-checked per product on the dates shown. ComparEdge sells no AI agent platforms and takes no payment for placement. How the score is built.

01 / 06

AI agent platforms ranked: pricing transparency, memory and self-host

Vendors are placed by how openly they price, which is what our score measures. The columns mark autonomous running, persistent memory, multi-agent orchestration and self-hosting; a blank is unlisted, not unable.

Sorted by transparency scorePriced tiers 40 / 53Full disclosure 1 / 13
How to read this table
01FlowiseFree tierAll tiers pricedAutonomous run not on the recordPersistent memory listedMulti-agent listedSelf-host listed$35flat94Alternatives to Flowise
02MakeFree tier1 of 5 tiers unpricedAutonomous run not on the recordPersistent memory not on the recordMulti-agent not on the recordSelf-host not on the record$10.59flat83Alternatives to Make
03ComposioFree tier1 of 4 tiers unpricedAutonomous run not on the recordPersistent memory not on the recordMulti-agent not on the recordSelf-host not on the record$29flat83Alternatives to Composio
04n8nFree tier1 of 5 tiers unpricedAutonomous run not on the recordPersistent memory not on the recordMulti-agent not on the recordSelf-host listed$27.48flat82Alternatives to n8n
05OpenAI Agents SDKUsage-priced, public rate cardFree tier1 of 2 tiers unpricedAutonomous run listedPersistent memory listedMulti-agent listedSelf-host listedSales only77Alternatives to OpenAI Agents SDK
06Browser UseFree tier1 of 5 tiers unpricedAutonomous run listedPersistent memory listedMulti-agent not on the recordSelf-host listed$29flat76Alternatives to Browser Use
07Zapier AIFree tier1 of 4 tiers unpricedAutonomous run not on the recordPersistent memory not on the recordMulti-agent not on the recordSelf-host not on the record$29.99flat75Alternatives to Zapier AI
08Relevance AIFree tier1 of 4 tiers unpricedAutonomous run listedPersistent memory listedMulti-agent listedSelf-host not on the record$29flat72Alternatives to Relevance AI
09DifyFree tier2 of 6 tiers unpricedAutonomous run not on the recordPersistent memory listedMulti-agent not on the recordSelf-host listed$59flat72Alternatives to Dify
10DevinFree tier1 of 5 tiers unpricedAutonomous run listedPersistent memory listedMulti-agent not on the recordSelf-host not on the record$20flat66Alternatives to Devin
11LettaFree tier1 of 4 tiers unpricedAutonomous run listedPersistent memory listedMulti-agent not on the recordSelf-host listed$20flat63Alternatives to Letta
12AutoGPTFree tier1 of 4 tiers unpricedAutonomous run listedPersistent memory listedMulti-agent listedSelf-host listed$50flat60Alternatives to AutoGPT
13CrewAIFree to start, paid tier on requestFree tier1 of 2 tiers unpricedAutonomous run listedPersistent memory listedMulti-agent listedSelf-host listedFree52Alternatives to CrewAI
GrantedSome tiers sealedNot on the recordFlat account fee, not per seatScore ranks pricing transparency and user ratings, not capability. Capability is the grid.
13 vendorsMedian entry $29Coverage span 40 of fourSealed tiers 13 / 53

Scroll the console sideways to reach the remaining conditions.

02 / 06

Every platform's plans, verdicts and the date we checked each price

Open a row and you get every tier, with the date behind every figure. What a platform can do is the grid above, and it adds nothing to the score.

Transparency scorePricing transparency 60%User satisfaction 40%

01

Flowise, the open-source visual builder for LLM apps and chatbots
Flowise

94Disclosure$35Flat / mo

A retrieval chatbot you would rather draw as a flow chart than assemble in code, and then host yourself. Flowise is the one platform here with no unpriced tier, and its plans are measured in predictions rather than people.

Critical gapComponent updates frequently cause breaking changes in existing flows.

Plan table and expert take

Flowise: expert take

Teams past five people are the ones who notice this ladder move: Pro includes five users and charges monthly for every one after that, which is unusual on a market that otherwise bills the account. Below that line the meter is predictions, not people.

Where Flowise holds up

  • Visually construct complex chains with 100+ LangChain/LlamaIndex nodes
  • Embeddable chat widget for any website with just a code snippet
  • Fully open-source core (Apache 2.0) allows for total customization
  • One-click deployment of chatflows as serverless API endpoints
  • Extensive marketplace of pre-built templates for quick starts

4.8CE scoreG2 4.7Founded 2023Verified July 8, 2026

3 plans, as published
PlanMonthlyAnnual
FreeFreeFree
Starter$35Not published
Pro$65Not published
02

Make, the visual platform for multi-step app automations
Make

83Disclosure$10.59Flat / mo

Branching, many-step scenarios across dozens of apps, mapped on a canvas instead of written out in code. Make is a workflow engine with AI steps in it, not an agent that decides for itself, and busy scenarios get hard to trace.

Plan table and expert take

Make: expert take

A credit is spent per module action, not per scenario run, so a long branching flow costs several times what a short one costs on the same trigger. Code execution is worse: two credits for every second it runs.

Where Make holds up

  • Visually debug workflows with real-time execution flow.
  • Advanced data handling: arrays, routers, aggregators, error handlers.
  • Granular control over scheduling, including specific dates and times.
  • Built-in AI module for text parsing, sentiment analysis, and generation.
  • Supports custom logic with Make Data Stores, a simple internal database.

4.8CE scoreG2 4.7 · 296 reviewsCapterra 4.8Founded 2012Verified July 8, 2026

5 plans, as published
PlanMonthlyAnnual
FreeFreeFree
Core$10.59$9
Pro$18.82$16
Teams$34.12$29
EnterpriseContact sales
03

Composio, the integration layer that connects AI agents to external tools
Composio

83Disclosure$29Flat / mo

Hundreds of third-party tools an agent has to reach, with delegated auth already handled for each one. Composio counts tool calls and moves you up through quota tiers; connected accounts themselves are never charged or capped.

Critical gapThe architecture requires custom bridging when integrating within complex legacy codebases.

Plan table and expert take

Composio: expert take

Buyers who care about support should read the fine print rather than the tier: Slack access opens on monthly spend, not on which plan you picked. The ladder itself is quota-based, counting tool calls, and connected accounts are never charged or capped.

Where Composio holds up

  • 250+ pre-built integrations save huge development time
  • Handles OAuth and auth complexity
  • Works with all major AI frameworks
  • Good developer experience

5.0CE scoreG2 4.9 · 7 reviewsFounded 2023Verified July 8, 2026

4 plans, as published
PlanMonthlyAnnual
Totally FreeFreeFree
Ridiculously Cheap$29Not published
Serious Business$229Not published
EnterpriseContact sales
04

n8n, the self-hostable, node-based workflow automation platform
n8n

82Disclosure$27.48Flat / mo

Automation that has to sit on your own servers, extended with nodes your engineers write themselves. The Community Edition carries no execution ceiling, and the paid tiers above it are built on concurrent executions rather than on people.

Critical gapSelf-hosting demands significant infrastructure maintenance and lacks direct technical vendor support.

Plan table and expert take

n8n: expert take

Teams under twenty people are the ones this ladder is built for: the business tier halves for them on application. And the shop window is priced in euros, so every dollar figure here is a conversion rather than the vendor's own number.

Where n8n holds up

  • Self-hostable for full data control and security
  • Source-available code allows for custom extensions
  • Build multi-step AI agents with memory and tools
  • Generous free tier for personal and small projects
  • Visual workflow editor with code node for complex logic

4.8CE scoreG2 4.7 · 207 reviewsCapterra 4.7Founded 2019Verified July 16, 2026

5 plans, as published
PlanMonthlyAnnual
Community EditionFreeFree
Starter$27.48$22.90
Pro$68.69$57.25
Business$915.93$763.66
EnterpriseContact sales
05

OpenAI Agents SDK, the Python toolkit for multi-agent workflows on OpenAI models
OpenAI Agents SDK

77DisclosureSales onlyNo price

A notebook prototype that has to become a multi-agent service in production, on OpenAI models you already committed to. The SDK itself is free, the source public; the bill arrives from the API underneath, with a surcharge on the data-residency endpoints.

Plan table and expert take

OpenAI Agents SDK: expert take

The surcharge hides in the endpoint, not the plan: routing through the data-residency endpoints adds a tenth to the model rate for anything released after early March. The SDK itself is free and open source, so the entire bill is the API underneath it.

Where OpenAI Agents SDK holds up

  • The official OpenAI framework, so it tracks new models and platform features first
  • A built-in agent loop, handoffs, sessions, and guardrails, so you skip writing the orchestration yourself
  • Native tracing logs every tool call, which makes replaying and diagnosing a bad run straightforward
  • Free and MIT-licensed, with cost that is purely the model tokens and tools your agents consume
  • Realtime API integration for voice agents, plus async support for high-throughput batch work

4.4CE scoreCapterra 4.3Founded 2025Verified July 8, 2026

2 plans, as published
PlanMonthlyAnnual
Open-Source SDKFreeFree
API UsageContact sales
06

Browser Use, the open-source Python framework for browser-driving agents
Browser Use

76Disclosure$29Flat / mo

Agents that have to click through real web pages rather than call a tidy API. Browser Use meters three layers over the subscription, browser time, proxy bandwidth and model tokens, and each layer carries its own rate.

Critical gapThe engine frequently fails during non-linear navigation tasks.

Plan table and expert take

Browser Use: expert take

Proxy bandwidth bought through the vendor costs twenty-five times what your own proxy costs, metered separately from browser time and model tokens. Bringing your own model key drops the orchestration markup from 1.2x to 0.2x.

Where Browser Use holds up

  • Dual-mode: Use locally via Python or via a managed Cloud API
  • LLM-agnostic: Integrates with any model (OpenAI, Anthropic, local)
  • Agentic tools for complex tasks like multi-tab coordination
  • Permissive Apache 2.0 license allows for commercial use
  • Active community with frequent releases and new integrations

4.5CE scoreG2 4.4 · 3,294 reviewsFounded 2024Verified July 16, 2026

5 plans, as published
PlanMonthlyAnnual
Pay As You GoFreeFree
Dev$29$24.17
Business$299$249.17
Scaleup$999$832.50
EnterpriseContact sales
07

Zapier, the automation service that links thousands of business apps
Zapier AI

75Disclosure$29.99Flat / mo

The first automation a small team builds once the spreadsheet stops coping. Zapier trades depth for reach, and every price on its page is a starting figure pinned to the lowest task volume, with overage billing on by default.

Critical gapThe platform requires extensive trial and error cycles to stabilize complex multi-step automation logic.

Plan table and expert take

Zapier AI: expert take

Every price on the page is a floor, captured with the task slider at its lowest notch. Overage billing is on by default, and email, SMS, WhatsApp and phone steps bill outside the task allowance entirely.

Where Zapier AI holds up

  • Build a multi-step automation from one natural-language prompt instead of assembling it by hand
  • Wires AI actions into an ecosystem of 6,000+ apps, which nothing else matches for breadth
  • Spin up custom AI chatbots grounded in your own knowledge bases, connected to your live app stack
  • A real free plan, not a countdown trial, so you can validate the fit before paying
  • Zapier Tables gives you a built-in database to hold state across complex AI workflows

4.6CE scoreG2 4.5 · 2,056 reviewsCapterra 4.5Founded 2011Verified July 8, 2026

4 plans, as published
PlanMonthlyAnnual
FreeFreeFree
Professional$29.99$19.99
Team$103.50$69
EnterpriseContact sales
08

Relevance AI, the low-code platform for sales and support agents
Relevance AI

72Disclosure$29Flat / mo

Ready-made sales and support agents a go-to-market team can point at its own CRM within the week. Relevance meters three things at once on its upper tier: actions, vendor credits, and how many people are allowed to build.

Plan table and expert take

Relevance AI: expert take

One quota is really three on the Team tier: monthly actions, a separate pot of vendor credits, and a cap on how many people may build. Run out of any one of them and the tier is finished, whatever the other two still show.

Where Relevance AI holds up

  • Build capable agents in a visual, drag-and-drop canvas without writing code
  • 300+ pre-built tools cover web scraping, lead enrichment, and the usual revenue-ops jobs out of the box
  • Deep native integrations with Salesforce, HubSpot, and Slack, so agents plug into the CRM you already run
  • A genuinely usable free tier lets you build and test real agents before paying
  • One-click deploy as an API, a web app, or a scheduled task, with bring-your-own-LLM on paid plans

4.4CE scoreG2 4.3 · 21 reviewsCapterra 4.4Founded 2023Verified July 8, 2026

4 plans, as published
PlanMonthlyAnnual
FreeFreeFree
Pro$29Not published
Team$349Not published
EnterpriseContact sales
09

Dify, the open-source platform for building RAG and LLM apps
Dify

72Disclosure$59Flat / mo

A retrieval application that has to reach production and might have to live inside your own network. Dify's page carries a switch that swaps the entire plan set, so the cloud line and the self-hosted line are two different things to buy.

Critical gapThe platform requires self-hosting to ensure full data sovereignty.

Plan table and expert take

Dify: expert take

The toggle on the pricing page swaps the whole plan set rather than the billing period. Cloud and self-hosted are separate ladders: the cloud side carries an annual discount, the self-hosted side has none, and its premium step bills by consumption through a marketplace.

Where Dify holds up

  • Visual prompt orchestration with version control and rollback
  • Backend-as-a-Service (BaaS) for rapid API deployment
  • Built-in RAG engine supports multiple data sources out-of-the-box
  • Generous free self-hosted option with full feature access
  • Agent-based tools for creating autonomous, function-calling AI

4.7CE scoreG2 4.6 · 20 reviewsFounded 2023Verified July 16, 2026

6 plans, as published
PlanMonthlyAnnual
SandboxFreeFree
Professional$59$49.17
Team$159$132.50
EnterpriseContact sales
Self-Hosted (Community)FreeFree
PremiumContact sales
10

Devin, the autonomous AI software engineer from Cognition
Devin

66Disclosure$20Flat / mo

A well-scoped ticket you would rather hand to an agent than to a person, browser and terminal included. Devin's team tier arrives in two parts, a base charge plus a per-participant fee on top, and its quotas refresh on a daily and weekly clock.

Critical gapSlow performance reported during extended sessions.

Plan table and expert take

Devin: expert take

Teams is where this gets misread. The Teams plan starts at $80 a month and adds a charge for every full participant on top. Quotas refresh daily and weekly, and anything past them bills at API rates the pricing page never lists.

Where Devin holds up

  • Full autonomous software engineering
  • Browser + terminal control
  • GitHub native integration
  • Can complete entire features solo
  • Rapidly improving capabilities

4.0CE scoreCapterra 3.9Founded 2024Verified July 8, 2026

5 plans, as published
PlanMonthlyAnnual
FreeFreeFree
Pro$20Not published
Max$200Not published
Teams$80Not published
EnterpriseContact sales
11

Letta, the framework for stateful agents with long-term memory, formerly MemGPT
Letta

63Disclosure$20Flat / mo

Agents that must remember a conversation from three weeks ago without being re-fed the transcript. Letta charges for an agent simply existing, month after month, and meters tool execution by the second, over and above the account fee.

Plan table and expert take

Letta: expert take

An agent costs money simply by existing here: there is a monthly charge per active agent sitting on top of the account fee, whether or not it does anything. Tool execution is metered by the second, and model tokens bill separately at provider rates.

Where Letta holds up

  • Best framework for persistent memory agents
  • Open source and transparent
  • Unique MemGPT architecture
  • Good for long-running agent tasks

4.0CE scoreG2 3.9 · 1,317 reviewsFounded 2023Verified July 8, 2026

4 plans, as published
PlanMonthlyAnnual
FreeFreeFree
Pro$20Not published
API Plan$20Not published
Teams / EnterpriseContact sales
The last two are the open-source pair with the thinnest published plans. AutoGPT prints two cloud prices and leaves its team tier blank; CrewAI prints one free tier and then quotes the rest.
12

AutoGPT, the open-source autonomous-agent project and hosted platform
AutoGPT

60Disclosure$50Flat / mo

An open sandbox for watching an autonomous agent reason its way through a goal, source code in your hands. The paid cloud adds a visual builder and a marketplace, but the subscription gates the chat and the agents draw on credits.

Plan table and expert take

AutoGPT: expert take

The subscription gates the chat and nothing else. Running agents and automations draws on a separate prepaid credit balance that refills itself, on every tier including Max, and that rate is never printed on the pricing page. Two invoices, not one.

Where AutoGPT holds up

  • Fully open-source and self-hostable, so you own the whole loop and your data never leaves your machine
  • Model-agnostic: point it at GPT-5.x, Claude Opus 4.8, or a local open-weight model, rather than one vendor
  • A large community plugin library extends what an agent can reach without writing the plumbing yourself
  • The clearest reference implementation of the goal-decompose-execute pattern, good for learning how agents work
  • The managed cloud build removes the setup tax if you want to try agents without standing up infrastructure

3.9CE scoreG2 3.8 · 36 reviewsCapterra 3.7Founded 2023Verified July 16, 2026

4 plans, as published
PlanMonthlyAnnual
Pro$50$42.50
Max$320$272
TeamContact sales
Self-HostFreeFree
13

CrewAI, the Python framework for orchestrating multi-agent crews
CrewAI

52DisclosureFreePaid tier unpriced

The stage before anyone signs anything, when a crew of role-playing agents still has to prove the idea works. CrewAI is free up to that point and contract-only past it, with no middle tier you can buy yourself.

Critical gapOverkill for many use cases; LangGraph offers wider support.

Plan table and expert take

CrewAI: expert take

Anyone hoping to grow out of the free tier gradually should look again. Basic allows fifty executions a month with no overage at all, and the next step is a negotiated contract carrying fifty development hours inside it. Nothing self-serve sits between them.

Where CrewAI holds up

  • Role-based agent design with distinct goals, tools, and backstories
  • Autonomous inter-agent delegation for dynamic task assignment
  • Flexible process flows: sequential, hierarchical, or consensual
  • LLM-agnostic: supports OpenAI, Azure, Anthropic, Gemini, and local models
  • Built-in memory and caching for stateful, efficient agent collaboration

4.2CE scoreCapterra 4.1Founded 2024Verified July 8, 2026

2 plans, as published
PlanMonthlyAnnual
BasicFreeFree
EnterpriseContact sales
03 / 06

Compare any two AI agent platforms: plans, limits and our score

vs

What the records say

Make starts cheaper: $10.59 / mo flat against $35 from Flowise, 3.3× apart at the door.

Headcount does not move these bills: Make is $10.59 / mo and Flowise is $35 / mo, $24.41 / mo apart.

Flowise carries 3 of the 4 capability columns on the record; Make shows 0.

Users rate them level: 4.7 on G2 apiece.

Both run a free tier, so either can be tried before the bill starts.

Flowise prices everything it sells; Make leaves part of its lineup unpriced.

Pick Flowise for: A retrieval chatbot you would rather draw as a flow chart than assemble in code, and then host yourself.

Pick Make for: Branching, many-step scenarios across dozens of apps, mapped on a canvas instead of written out in code.

01

Flowise

CE 94 · G2 4.7
Published plans, US$/mo
FreeFree
Starter$35
Pro$65
Team of 6$35 / mo

Verified July 8, 2026

02

Make

CE 83 · G2 4.7
Published plans, US$/mo
FreeFree
Pro$18.82
EnterpriseContact sales
Team of 6$10.59 / mo

Verified July 8, 2026

Both price lists on the category axis

Flowise
Make

Where they differ

Only Flowise has on the record

  • Every tier priced
  • Persistent memory
  • Multi-agent
  • Self-host

Only Make has on the record

04 / 06

AI agent questions: hidden fees, quota overruns, n8n and Make

Why is Zapier so expensive?

Because the figure on the page is a floor, not a price. Zapier scales by task volume, every published number is captured at the lowest notch of the slider, and overage billing is on unless you switch it off. None of that is peculiar to Zapier: volume sliders and automatic top-ups are how much of this market prices, and the best-known vendor is simply where buyers notice it first.

Is there anything better than Zapier?

Depends what you are optimising. Make maps branching logic more deeply and counts a credit for every module action instead of a task per run. n8n can be hosted by you, and its Community Edition carries no execution ceiling, the reason it keeps surfacing in automation forums. Zapier still reaches more apps than either, and for two-step work that reach is the argument.

Which is better, n8n or Make?

They meter differently, which usually settles it. Make counts credits per module action, so a scenario with many steps burns more than a short one at the same run count, and code execution costs two credits for every second it runs. n8n counts workflow executions and sells concurrency as the tiers rise. If the flows have to stay inside your own network, only n8n does that.

Do these platforms have hidden fees?

Nothing is hidden exactly. The meters are published, they are simply outside the plan price. Expect prepaid credit balances that top themselves up, top-ups once the bundled allowance is gone, proxy bandwidth, tool execution charged by the second, a fee for every agent left active, and overage priced at raw API rates. AutoGPT shows the shape best: the subscription gates chat, the agents draw on credits.

What happens when the included quota runs out?

Three behaviours, and they are worth checking before you sign up. CrewAI stops dead: its free plan allows fifty executions a month and carries no overage at all, so the only way past it is a contract. Zapier and Browser Use charge automatically instead. Dify pushes you onto a bigger plan rather than charging an overage.

Where does a workflow automation end and an AI agent begin?

On the bill, mostly. An agent decides its own next step toward a goal, so its cost tracks how hard the task proves to be. A workflow runner executes the exact path you drew, so its cost tracks how many steps you drew and how often it runs. One is priced by outcome, the other by structure.

Can I run agents for free?

Yes, at 13 of them. A free entry means two different things here. Hosted free tiers are real and tightly capped, usually a few flows, a few hundred actions or a handful of agents. Self-hosted community builds carry no vendor cap and hand you the costs instead: the server, the model keys, and everything the agent touches.

What will five people on one account pay?

About the same as one person pays. Almost every plan bills the account rather than the head, so the calculator above prices by team size against your monthly ceiling. Two exceptions. Flowise includes five users on its top tier and charges monthly for each one beyond that; Devin's team tier adds a per-participant charge over its base fee.

Is annual billing worth it here?

Where it exists, yes. Discounts land between roughly a seventh and a third below the monthly rate, with Zapier cutting deepest. Make is the exception worth reading twice: its annual option is not a percentage at all but a prepaid credit pack that stops expiring monthly and expires after twelve months instead. Several vendors, Devin and Flowise among them, publish no annual option.

Which of these actually run without a person watching?

Read the autonomous-run column in the grid, not the product page. The workflow platforms sit blank there by design, not by oversight: they run the path you wired and never pick one. The frameworks, the coding agent and the browser drivers record it as granted. Neither answer is better in the abstract, but buying an agent when you needed a deterministic runner is the common mistake here.

Can these prices be compared directly?

The subscription line compares. The meter under it does not. One vendor counts tasks, another a credit per module action, another executions, tool calls, predictions, seconds of browser time or agents kept alive. Nothing converts those into each other, so two platforms sharing a monthly figure can land on completely different totals once real work starts.

What do you still pay when you self-host?

The software is the free part. AutoGPT's self-host build needs your own model keys plus your own compute, sandbox, mail, CAPTCHA and antivirus. Flowise's free edition is limited by whatever machine you put it on. Dify's self-hosted line is a separate plan set with no annual option and a marketplace-billed premium step. Free means unmetered by the vendor, not unpaid.
Field note 01

A flat AI agent price is not a predictable one

Flat pricing is what this market advertises, and it is mostly true of the subscription line. It is rarely true of the invoice. Under most of the plans here sits a second meter that starts counting the moment an agent does anything: tasks, credits per module action, executions, tool calls, predictions, seconds of browser time, gigabytes through a proxy, or a standing charge for every agent left switched on. Each of those rates is published. None of them lives in the number the vendor leads with.

AutoGPT is the sharpest version of this. The subscription there gates the chat interface and nothing else, while running agents and automations draws on a prepaid credit balance that tops itself up, on every tier including the most expensive one. That is not a plan with a usage limit. It is two separate invoices, and the second has no published ceiling.

Field note 02

Before you pay for an AI agent platform, price the unit

Begin with the unit rather than the price. Find what the vendor counts, count how much of it one real workload consumes over a week, and only then look at which plan covers that. A monthly figure that looks cheap against a rival means nothing when one vendor counts a task per run and the other counts a credit per step inside that run.

Three switches are worth finding before you pay. Overage either charges automatically or stops the work dead, and both behaviours live on this page, failing in opposite directions. A free tier hosted by the vendor is a different offer from a community build on your own hardware, which moves the cost instead of removing it. The annual option deserves a look too, because here it can be a genuine discount or a prepaid pack with an expiry date.

The verdict on AI agent platformsSigned review · Updated
Oleh KemFounder & Lead AnalystComparEdge Editorial

Flat pricing is the promise on this market, and it holds for about a month. The subscription buys access. The work runs on a second counter underneath, and that counter is where a busy month goes wrong.

Find what the vendor counts, then run one real workload against it for a week before you commit. Tasks, credits per module action, executions, tool calls, agents left switched on: none of these convert into each other. The same monthly figure on two platforms can end the month in very different places. Check one more thing after that. Overage either bills silently or stops the work dead, both behaviours live here, and they fail in opposite directions. Disclosure is what the ranking measures, and the honest vendors here publish the second counter too.

MethodWe read 53 plans across thirteen platforms and recorded the metered layer wherever the vendor publishes one, last checked .
DisclosureCollection is tool-assisted; every verdict is written and signed by a human analyst.
06 / 06

Read next: cost guides for AI agent platforms, plus related categories

How this review is made. Prices are read from vendor pricing pages and re-checked on the dates shown against each product. Condition columns reflect the feature set recorded on the vendor’s own pages on that date. ComparEdge sells no AI agent platforms and takes no vendor payment for placement. Where a vendor publishes nothing, this page says so rather than estimating. Ranking is by transparency score: pricing transparency 60%, user satisfaction 40%. What a product can do is shown in the condition columns and carries no weight in the number.