OpenAI put the Agents API into public beta for all developers: a managed service powered by the Codex harness (open-source codebase) where OpenAI runs session orchestration, context compaction and recovery. One API call takes a task, a model, tools and an environment; compute can be OpenAI-managed sandboxes, the customer's own infrastructure via a proxy, or sandbox partners (Blaxel, Cloudflare, Daytona, DigitalOcean, E2B, Modal, Oracle, Runloop, Vercel). Agents persist across turns with streaming progress, call MCP servers / custom functions / built-in web search, and 'auto compaction' carries notes across context windows; tool search discovers MCP tools without loading every schema; programmatic tool calling reads tool outputs mid-chain; subagents run in parallel with their own contexts. No additional fees during beta beyond token and tool usage.
Codex CLI 0.166 adds durable queue resume and network diagnosis
Codex CLI 0.166 adds codex queue --resume and doctor --network-only, preserves approval and permission state across resume and fork, and restores descendant threads. It also fixes startup, shutdown and reconnect paths and corrects reasoning-token accounting.
Imported from the existing research archive. Migration preserves the recorded judgment and is not a fresh verification.
What this means for you
For long-running coding workflows, durable queue resume and explicit network diagnosis make interrupted work easier to verify. Teams should still test approval preservation and descendant restoration before broad rollout.
Evidence & related material
The Agents API hosted browser coordinates application-managed origin approval, sign-in and session recovery.
The 0.166.0 stable release notes confirm queue resume, network diagnosis and session-state fixes.
Subsequent changes
Agents API adds hosted browsing with origin approval and sign-in handoff
Version 0.166.0 adds queue resume and repairs session-state boundaries.
Technical details & scores
| Status | public beta, all developers; page publishedTime 2026-09-10T15:00Z |
|---|---|
| Harness | managed service powered by the Codex harness (open-source codebase); OpenAI runs orchestration, compaction, recovery |
| Compute Options | OpenAI-managed sandbox / own infrastructure via proxy / sandbox partners: Blaxel, Cloudflare, Daytona, DigitalOcean, E2B, Modal, Oracle, Runloop, Vercel |
| Features | persistent sessions with streaming progress; MCP servers + custom functions + built-in web search; auto compaction (notes across context windows); tool search; programmatic tool calling; parallel subagents with own contexts |
| Pricing | no additional fee during beta; pay for tokens and tools |
| Related | GPT-Live 1 GA, prompt cache diagnostics GA, API key expiry, GPT Image 2.5 Sunburst/Flare shipped in the same changelog window (see ev-20260910-05) |
| Hosted Browser | OpenAI-hosted browser with resumable sessions |
| Authentication | application renders authentication fields; main agent only |
| Unsupported | passkeys and QR-code sign-in |
| Approval | application approves requested origins |
| Latest Cli | 0.166.0 |
| Release Time | 2026-10-29T19:47:53Z |
| Release 2026 10 29 | queue --resume, doctor --network-only, approval/permission preservation, descendant restoration and reconnect fixes |