Independent newsroom

Friday, September 11, 2026

The File

Every claim traces to a primary source. Uncertainty is labeled. Corrections are public.

OpenAI · Friday, September 11, 2026

OpenAI opens an Agents API in public beta

The File desk · Sep 11, 2026, 10:16 AM UTC

Status

Confirmed from OpenAI’s product post dated Sept. 10, 2026. Live openai.com returned 403 this pass; an Internet Archive capture of the same URL was retrieved. Customer performance claims in testimonials are not independently verified by this desk.

  • Confirmed

    OpenAI said on Sept. 10 that the Agents API is in public beta. One API call can create an agent with a model, tools, and an environment. OpenAI hosts the harness. Developers can run the agent in an OpenAI-hosted sandbox, on their own machines, or with partners including Blaxel, Cloudflare, Daytona, DigitalOcean, E2B, Modal, Oracle, Runloop, and Vercel. Sample calls use model id gpt-6-astra. The company says there is no extra fee beyond tokens and tools.

  • Unverified

    Customer quotes on the page, including evaluation-score and latency claims, are not independently verified here. Live openai.com returned 403.

OpenAI is letting developers run the same kind of long-running agent harness that powers Codex. On Sept. 10 the company said the Agents API is in public beta. One API call can create an agent with a model, tools, and an environment. OpenAI hosts the harness. Developers can run the agent in an OpenAI-hosted sandbox, on their own machines, or with partners including Blaxel, Cloudflare, Daytona, DigitalOcean, E2B, Modal, Oracle, Runloop, and Vercel. The post shows sample calls using model id gpt-6-astra, MCP tools, and multi-agent subagents. The company says there is no extra fee for the API beyond tokens and tools. Other Sept. 10 OpenAI product posts on the same index include ChatGPT for Financial Services, GPT-Live-1, and “put data to work.” Those are noted here, not re-led.

OpenAI is letting developers run the same kind of long-running agent harness that powers Codex.

On Sept. 10 the company said the Agents API is in public beta. One API call can create an agent with a model, tools, and an environment. OpenAI hosts the harness.

Developers can run the agent in an OpenAI-hosted sandbox, on their own machines, or with partners. The post names Blaxel, Cloudflare, Daytona, DigitalOcean, E2B, Modal, Oracle, Runloop, and Vercel.

A sample call on the page uses model id gpt-6-astra, MCP tools, and multi-agent subagents.

The company says there is no extra fee for the API. You pay for the tokens and tools the agents use.

Other Sept. 10 posts on the same OpenAI index include ChatGPT for Financial Services, GPT-Live-1 in the API, and “put data to work.” They are not re-led here.

Live openai.com returned 403 to this desk. The text is from an Internet Archive capture. Customer performance claims in the testimonials are not independently verified here.

What is still unknown or disputed

Primary sources

Every claim in this story is drawn from the documents below. If a fetch failed, that is recorded on the card.

  1. Source 1 · fetch incomplete

    Introducing the Agents API

    OpenAI · September 10, 2026

    Live page returned HTTP 403. See Internet Archive capture of the same URL.

    https://openai.com/index/introducing-the-agents-api/

  2. Source 2

    Introducing the Agents API (Internet Archive capture)

    Internet Archive / OpenAI · September 10, 2026

    Agents API in public beta. OpenAI hosts the harness. Partners include Blaxel, Cloudflare, Daytona, DigitalOcean, E2B, Modal, Oracle, Runloop, and Vercel. Sample model gpt-6-astra. No additional fees beyond tokens and tools.

    https://web.archive.org/web/20260910193424/https://openai.com/index/introducing-the-agents-api/