OpenAI Agents SDK Pricing: Plans & Cost Guide 2026
Free and open source, with no subscription and no per-seat fee. The whole cost is the OpenAI model tokens and tool calls your agents consume.
OpenAI Agents SDK plans and pricing
Open-Source SDK
Building agents on OpenAI
API Usage
Runtime (metered)
OpenAI Agents SDK pricing: the quick answer
The OpenAI Agents SDK is free and open source; you pay only for the API calls your agents make, priced per token as of July 14, 2026. Running GPT-5.4 costs $2.50 per 1M input tokens and $15 per 1M output, GPT-5.5 is $5 in and $30 out, and the cheaper GPT-5.4-mini is $0.75 in and $4.50 out. Built-in tools bill on top: web search at $10 per 1,000 calls and file search at $2.50 per 1,000. There is no subscription and no per-seat fee, so your entire cost is whatever your agents consume in tokens and tool calls.
- Open-Source SDKFree
- API UsageCustom
OpenAI Agents SDK is free to start, against a $29/mo median across 11 ai agents tools we track.
OpenAI Agents SDK Hidden Costs & Pitfalls
The SDK is free, so every line on your bill is usage. Tokens are the bulk of it, but the hosted tools and containers are where an agent quietly runs up extra.
OpenAI Agents SDK pricing, read against its live plans and category
Positioning
The OpenAI Agents SDK is free and open source, which is the whole appeal: the framework itself costs nothing. The catch is that it is a gateway to pay-as-you-go API usage. GPT-5.4 runs $2.50 in and $15 out per 1M tokens, GPT-5.5 $5 and $30, and the built-in tools bill on top. Production cost is entirely a function of tokens and tool calls.
Cost drivers
- 1Model tokens: $0.75 to $30 per 1M depending on model and direction.
- 2Tools: web search $10/1k calls, file search $2.50/1k calls.
- 3Storage and containers: $0.10/GB/day after 1GB free; containers $0.03 to $1.92 per 20-minute session.
- 4Data residency: regional endpoints add a 10% uplift on eligible newer models.
Watch-outs
Developers worry about runaway loops driving API cost with no warning, since the SDK ships no native per-agent budget cap.
Editor’s take
The free SDK suits developers building multi-agent workflows in code who want to skip a platform subscription and pay only for usage. For teams that want visual, low-code orchestration with a more predictable monthly bill, n8n is a steadier alternative.
Oleh KemFounder & Lead AnalystOpenAI Agents SDK price history
Cheaper AI Agents tools
Frequently asked questions
Sources & verification
| Source | What was checked | Last checked |
|---|---|---|
| Official Pricing Page | Source of verified tiers | July 8, 2026 |
| Official Website | Official vendor website | — |
| PeerSpot | PeerSpot enterprise peer reviews | — |
Every fact on this OpenAI Agents SDK pricing page is tied to a named source and a verification date. Freshness-sensitive figures trace to the sources above; verify against the vendor before relying on them.
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