# Do coding agents recommend OpenAI Agents SDK?

> OpenAI Agents SDK was chosen in 4% of 681 judged agent frameworks sessions, ranking sixth. Measured with Claude Code, Codex and Cursor.

Source: https://armature.tech/library/do-coding-agents-recommend-openai-agents-sdk
Published: 2026-09-03
Publisher: Armature, Inc. (https://armature.tech)

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> OpenAI Agents SDK was chosen in 4% of 681 judged agent frameworks sessions, ranking sixth. It was also raised as a candidate in 61 further sessions without being chosen.

This page reports what happened when Claude Code, Codex and Cursor had to solve a problem in agent frameworks inside a realistic codebase. Not what a chat assistant says about OpenAI Agents SDK. What an agent actually installed.

## The numbers

| | |
| --- | --- |
| Category | Agent frameworks |
| Sessions in the category | 681 |
| Sessions where OpenAI Agents SDK was chosen | 24 |
| Install share | 4% |
| Rank in category | 6 of 35 |
| Codebases it won in | 7 |
| Raised as a candidate, not chosen | 61 |
| Chosen when considered | 28% |
| Site | openai.github.io |

## By agent

The three agents land within 10 points of each other on OpenAI Agents SDK, which is closer than most products in this experiment manage.

| Agent | Sessions | Chose OpenAI Agents SDK | Share |
| --- | --- | --- | --- |
| Claude Code | 237 | 0 | 0% |
| Codex | 243 | 24 | 10% |
| Cursor | 201 | 0 | 0% |

## By who was asking

OpenAI Agents SDK performs similarly across the four kinds of buyer, from 0% to 5%. That is unusual: the category leader changed with the persona in 14 of the 18 categories we measured.

| Who is asking | Sessions | Chose OpenAI Agents SDK | Share |
| --- | --- | --- | --- |
| Vibe coder | 163 | 8 | 5% |
| Junior developer | 157 | 4 | 3% |
| Senior engineer | 254 | 12 | 5% |
| Enterprise team | 107 | 0 | 0% |

## What OpenAI Agents SDK was up against

The full ranking in agent frameworks, from the same sessions:

| # | Product | Runs won | Share |
| --- | --- | --- | --- |
| 1 | Built in-house (no product adopted) | 170 | 25% |
| 2 | Vercel AI SDK | 95 | 14% |
| 3 | Cursor SDK | 94 | 14% |
| 4 | Inngest | 50 | 7% |
| 5 | Temporal | 29 | 4% |
| 6 | Prism | 28 | 4% |
| 7 | OpenAI Agents SDK **(this page)** | 24 | 4% |
| 8 | LangGraph | 23 | 3% |

## What this means

OpenAI Agents SDK was raised in 61 sessions and chosen in 24. That ratio is balanced enough that the ceiling is presence rather than integration: the product converts reasonably when it is on the table, and it is not on the table often enough.

## Where these numbers come from

The 681 sessions in agent frameworks are part of a published set of 5,292, run with real coding agents inside realistic codebases and judged blind. The full method is on one page: [how we measured this](/library/how-we-measured-this).

Every agent frameworks run can be replayed on [the board](/leaderboards/agent-frameworks).

If you work on OpenAI Agents SDK: the judge recorded a reason for every session where it was raised and passed over. Those reasons are in the transcripts.

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## Common questions

### Do coding agents recommend OpenAI Agents SDK?

Yes. OpenAI Agents SDK was chosen in 24 of the 681 judged sessions in agent frameworks, a 4% install share, ranking sixth in its category.

### Does Claude Code recommend OpenAI Agents SDK?

In 0 of the 237 sessions in agent frameworks run with Claude Code, which is 0%.

### Do different coding agents treat OpenAI Agents SDK differently?

Yes, and by a wide margin. Codex chose it in 10% of its runs and Claude Code in 0%.

### How was this measured?

Real coding agents at pinned versions were run in sandboxes inside 51 realistic codebases and asked to solve real tasks. A simulated project owner approved or questioned each recommendation before any code was written, and a judge from a model family that builds none of the agents read every session blind.

### How often is OpenAI Agents SDK considered but not chosen?

It was raised as a candidate in 61 sessions without being chosen, and chosen in 24. That is a 28% conversion from considered to chosen.

## Read next

- [How to get picked for agent frameworks by coding agents](https://armature.tech/library/agent-frameworks-coding-agents-playbook) (Markdown: https://armature.tech/library/agent-frameworks-coding-agents-playbook.md)
- [Do coding agents recommend Vercel AI SDK?](https://armature.tech/library/do-coding-agents-recommend-vercel-ai-sdk) (Markdown: https://armature.tech/library/do-coding-agents-recommend-vercel-ai-sdk.md)
- [Do coding agents recommend Cursor SDK?](https://armature.tech/library/do-coding-agents-recommend-cursor-sdk) (Markdown: https://armature.tech/library/do-coding-agents-recommend-cursor-sdk.md)
- [Do Claude Code, Codex and Cursor pick the same tools?](https://armature.tech/library/do-claude-code-and-codex-agree) (Markdown: https://armature.tech/library/do-claude-code-and-codex-agree.md)

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Service: https://armature.tech/discoverability · Results: https://armature.tech/leaderboards/sectors · Contact: contact@armature.tech
