Is Dify better than Letta in 2026?

It depends on your needs. Letta is rated higher at NaN/5 vs Dify's 4.6/5. Dify excels at open-source llm application development platform and mlops tool, while Letta focuses on open-source framework for building stateful ai agents with persistent memory. Dify starts at $59/mo; Letta starts at free tier.

Which is cheaper, Dify or Letta?

Dify starts at $59/mo; Letta starts at free tier. Dify has a free plan, and Letta also offers a free tier.

Can I migrate from Dify to Letta?

Most users can switch between these tools. Letta supports data import from Dify. Plan 1-3 days for migration depending on data volume and team size.

What are the key differences between Dify and Letta?

Dify uniquely offers Prompt Engineering, RAG Pipeline, Agent Builder. Letta uniquely offers Persistent Memory, Stateful Agents, Memory Editing. Both share 1 features including Multi-LLM Support. Dify starts at $59/mo; Letta starts at free tier. Founded in 2023 and 2023 respectively.

Which AI tool is better, Dify or Letta?

Letta leads with a NaN/5 rating. Dify has 15 features vs Letta's 15. Letta is rated higher at NaN/5 vs Dify's 4.6/5.

When was this Dify vs Letta comparison last updated?

This comparison was last updated on May 13, 2026. We review and refresh our comparisons regularly to reflect the latest pricing, features, and ratings from Dify and Letta.

Home›ai-agents›Compare›Dify vs Letta

Updated May 13, 2026 · Independent Analysis

DifyvsLetta

Capability Overview

Difyvs Letta

★ 4.6/5+0.1 vs Letta

Only in Dify

✦ Prompt Engineering
✦ RAG Pipeline
✦ Agent Builder

✓ Free planFrom $59/mo50k+ GitHub stars users · est. 2023

View Full Review Try Dify Free

Lettavs Dify

★ 4.5/5-0.1 vs Dify

Only in Letta

✦ Persistent Memory
✦ Stateful Agents
✦ Memory Editing

✓ Free plan10k+ GitHub stars users · est. 2023

View Full Review Try Letta Free

Pricing Features Pros & Cons At a Glance FAQ Related

Pricing Intelligence

Dify Plans

Free tier available

Sandbox0

Free

• 200 OpenAI calls
• 5 apps
• Community support

ProfessionalBest Value

$59/mo

• 5,000 messages/mo
• 50 apps
• Priority support

Self-Hosted0

Free

• Unlimited
• Enterprise features
• Full control

Full Dify Pricing Breakdown →

Letta Plans

Free tier available

Open Source0

Open Source

• Self-hosted
• All features
• Commercial use

Cloud

Custom

• Managed hosting
• Custom pricing
• Enterprise features

Full Letta Pricing Breakdown →

Feature Matrix

6 differences found across 15 standardized features

Feature

Dify

Letta

Visual Builder

✓

✗

Auth

✓

✗

Webhooks

✓

✗

Analytics

✓

✗

Team Features

✓

✗

Version Control

✓

✗

Total (raw)

Pros & Cons Face-Off

Evaluative strengths and weaknesses — not feature lists

Dify

Pros

+Comprehensive LLMOps platform
+Excellent self-hosted option
+Strong observability and versioning
+Rapidly growing ecosystem

Cons

−Cloud plans have message limits
−Complexity can be overwhelming
−Documentation has gaps

Letta

Pros

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

Cons

−More complex than simple agent frameworks
−Requires understanding of memory architecture
−Smaller community than LangChain

At a Glance

User Rating

4.6/5vs4.5/5

Dify

▲

Letta

Starting Price

$59/movsPay-per-use

Dify

▲

Letta

Feature Count

15 featuresvs15 features

Dify

Letta

User Base

50vs10

Dify

▲

Letta

Frequently Asked Questions

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Authored by Oleh Kem·Reviewed by Oleh KemExpert verified·Updated May 13, 2026·Our methodology