Head to head · Agent harnesses · October 2026 research run
Conductor vs OpenAI Agents API
OpenAI Agents API scores 73.3 (BB) on agent readiness against Conductor's 41.3 (E), and leads in every scored category. Both do agent harnesses.
Best agent harnesses and coding agents · All 1500 harnesses comparisons
Which one, for what
Best for Existing Conductor users planning their move before Cloud closes on 20 November 2026 and the local app winds down in early 2027.
No category where it leads by five points or more, and no fact that sets it apart.
Watch for
No new downloads or sign-ups since 4 November 2026
Best for Teams that want OpenAI to run the agent loop, with sandboxes, MCP tools and subagents, and are fine with a beta API, US-only data residency and no Zero Data Retention.
Ahead on
- Reliability, 60 against 25
- Schema & documentation, 88 against 60
- Agent ergonomics, 80 against 55
- Security & auth, 87 against 45
- Payments & pricing, 30 against 0
- Maintenance & community, 87 against 58
- Transparency & trust, 85 against 53
Also in its favour
- Agent-ready, a grade of BB or better
- A hosted endpoint, with nothing to install
Watch for
Public beta since 10 September 2026 behind the agents=v1 beta header, with no GA date
Why the edge
Each category where one leads by five points or more, with the reason behind each side's score from its assessment. The numbers are in the table below; this is what they stand for.
Security & auth OpenAI Agents API +42
Conductor 45
Closed app. Telemetry and data handling weren't read beyond the transition notice (10 of 30). A security and permissions page (10 of 20). No prompt-injection guidance found (5). No audit log found (5). SOC 2 Type II report at trust.conductor.build (15 of 20). 10 + 10 + 5 + 5 + 15 = 45.
OpenAI Agents API 87
Project keys with restricted per-endpoint permissions, service accounts and workload identity, per the openai-api listing; we didn't confirm a key can be limited to /v1/agents (27 of 30). Automatic review for approvals, a sandbox network restricted to a host allowlist, vaults for secrets and a sandbox security guide (17 of 20). The agent reads web pages, MCP results and browser content; the sandbox security guide and approval flow are the mitigations, with no prompt-injection guide of its own found (8 of 15). Tracing, observability and usage per session and admin audit logs (15). SOC 2 Type 2, ISO 27001 family, Bugcrowd bounty and a disclosure policy, per the openai-api listing (20). Not ZDR-eligible and US residency only, recorded under transparency. 27 + 17 + 8 + 15 + 20 = 87.
Reliability OpenAI Agents API +35
Conductor 25
Read as local software that is winding down. Installed from Conductor's own download, which stopped taking new users on 4 November 2026 (10). Closed source, so no public CI or issue tracker (0, 0). A dated changelog, newest 0.93.0 on 4 November (15). Version 0.93 (0). 10 + 0 + 0 + 15 + 0 = 25.
OpenAI Agents API 60
Read as a hosted API. status.openai.com has an Agents component under APIs (20). Since release on 10 September (57 days, not 90), the feed names the Agents API in a degraded-performance incident on 14 September, the elevated errors across ChatGPT, Codex and the API on 29 September (the openai-api listing reads that one as a major, 17:52 to 23:14 UTC), computer use issues and degraded workspace agents on 6 and 7 October, degraded performance across the APIs for 22 minutes on 21 October, and overbilling for hosted containers on 19 September. One major, the rest minor (10). Rate limits come from the shared guide, published per tier and model with headers, and the errors page adds a Files API allowance on session creation (15). 429 and 503 guidance with Retry-After, capped backoff and a check-then-retry procedure for turns (15). The Scale Tier SLA in the openai-api listing isn't shown to cover a beta API (0). Public beta behind the agents=v1 header (0). 20 + 10 + 15 + 15 + 0 + 0 = 60.
Transparency & trust OpenAI Agents API +32
Conductor 53
Closed service with terms and privacy pages (15). The transition notice says when Cloud data deletion begins (20 November) and that all user data is deleted when the app shuts down in early 2027 (20 of 30). Dated shutdown notice (15 of 20). SOC 2 report on a trust portal, subprocessors not read (10 of 20). 15 + 20 + 15 + 10 = 60.
OpenAI Agents API 85
Closed service with clear terms, Apache-2.0 SDKs (15). Session state retained until deleted, deletable sessions and artifacts, not ZDR-eligible, US residency only, and the data-controls guide agrees; no retention period for artifacts after a sandbox expires (25 of 30). Dated deprecation notices with minimum periods for GA models; a beta API can change faster (15 of 20). Subprocessors and processing countries listed, per the openai-api listing (20). 15 + 25 + 15 + 20 = 75.
Payments & pricing OpenAI Agents API +30
Conductor 0
No new sign-ups since 4 November, free users can't upgrade, and no price is shown. No protocol, no published price, no open free tier, no onboarding (0).
OpenAI Agents API 30
No machine payment protocol (0). Model, tool and container prices published without a login, and no fee for the API itself (20). The Free tier reading of the openai-api listing, half (10). Sign-up in a browser (0). 0 + 20 + 10 + 0 = 30.
Maintenance & community OpenAI Agents API +29
Conductor 58
0.93.0 on 4 November 2026 (30). Several dated releases in 90 days, per the changelog index (20). Discord, a subreddit and email for support (8). Closed app, no package or CI to read (0). 30 + 20 + 8 + 0 + 0 = 58. The local app gets new models and critical fixes only until early 2027.
OpenAI Agents API 87
Closed API. Last dated change 16 October 2026, Ultrafast mode and document skills (30). Four dated changelog entries in the 57 days since release, 10 September, 29 September, 9 October and 16 October (20). Changelog and help centre, as the openai-api listing reads them (12 of 15). Official SDKs carry beta.agents (15). SDK CI, per the openai-api listing (10). 30 + 20 + 12 + 15 + 10 = 87.
Schema & documentation OpenAI Agents API +28
Conductor 60
Harness reading. Docs for workspaces, review and merge, a Conductor API reference page linked from the docs (not read), and security and permissions pages (60).
OpenAI Agents API 88
The reference is linked from the overview and the SDKs carry beta.agents types; we didn't confirm /agents/sessions in OpenAI's public OpenAPI file, so 15 of 25. llms.txt with every Agents API page and Markdown twins (10). The overview, architecture page and the agents guide that compares the Agents API, Agents SDK and Responses API say when to use it (20). Typed configuration with enumerated container sizes, network modes and environment types (13 of 15). Examples in six languages and an errors page with codes per HTTP status, turn and session (15). Dated changelog entries and a versioned beta header (15). 15 + 10 + 20 + 13 + 15 + 15 = 88.
Score by category
| Category | Weight this run | Conductor | OpenAI Agents API | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 25 | 60 | OpenAI Agents API +35 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 60 | 88 | OpenAI Agents API +28 |
| Agent ergonomics | 13%16.2 | 55 | 80 | OpenAI Agents API +25 |
| Security & auth | 14%17.5 | 45 | 87 | OpenAI Agents API +42 |
| Payments & pricing | 10%12.5 | 0 | 30 | OpenAI Agents API +30 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 58 | 87 | OpenAI Agents API +29 |
| Transparency & trust | 7%8.8 | 53 | 85 | OpenAI Agents API +32 |
| Negative events | ≤15 | 0 | 0 | |
| Total | E 41.3/100 | BB 73.3/100 |
Facts side by side
| Fact | Conductor | OpenAI Agents API |
|---|---|---|
| Kind | Agent harness | HTTP API |
| Vendor | Conductor (joining Meta) | OpenAI |
| Hosted endpoint | no (local only) | https://api.openai.com/v1/agents/sessions |
| Transports | https | |
| Auth | OAuth or key | API key |
| Pricing | Paid | Pay per use |
| x402 | no | no |
| Licence | Proprietary. A closed-source Mac app and hosted Conductor Cloud under Conductor's terms | Proprietary hosted API under OpenAI's Services Agreement. The SDKs are Apache 2.0 |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| Last release | 2026-11-04 | 2026-10-16 |
| Terms last updated | not read yet | couldn't be read |
| Privacy policy last updated | not read yet | couldn't be read |
| Customer content may train models | not read yet | couldn't be read |
| Terms restrict automated access | not read yet | couldn't be read |
| Terms restrict benchmarking | not read yet | couldn't be read |
| Terms or service can change without notice | not read yet | couldn't be read |
| Arbitration or class-action waiver | not read yet | couldn't be read |
Verdicts
Conductor
Conductor ran parallel coding agents on the Mac, and Meta is acquiring it. It has taken no new users since 4 November 2026, Cloud turns read-only on 13 November and shuts down on 20 November, and the local app winds down in early 2027, when all user data is deleted.
OpenAI Agents API
OpenAI's hosted agent runtime, the Codex harness behind one session call, with MCP, functions, web search, computer use, subagents and sandboxes on OpenAI or your own infrastructure. Documentation, errors and SDKs are thorough. It's still public beta, can't use Zero Data Retention and keeps data in the United States only.
Before you call either
Conductor
- Export your data from Settings, Account, Export data before 20 November 2026
- Move Cloud workspaces to your Mac with Transfer to local before 13 November
- Plan a move off the local app before early 2027; see the agent-harnesses category for alternatives
OpenAI Agents API
- POST https://api.openai.com/v1/agents/sessions with a project key and the header OpenAI-Beta: agents=v1, or use client.beta.agents in the SDKs
- Before retrying, retrieve the session and turn and check which actions completed, since there's no idempotency key
- Set the sandbox network to restricted with an allowlist of up to 100 hosts when the agent doesn't need the open web
- Save files from /workspace/outputs before deleting a session; no retention period is stated for artifacts
- Don't send data that needs Zero Data Retention or non-US residency; the Agents API supports neither
Questions
Which is better for AI agents, Conductor or OpenAI Agents API?
OpenAI Agents API scores 73.3 (BB) on agent readiness against Conductor's 41.3 (E), and leads in every scored category.
Can an agent call Conductor and OpenAI Agents API without installing anything?
No hosted endpoint is listed for Conductor. OpenAI Agents API has a hosted endpoint at https://api.openai.com/v1/agents/sessions.
Other comparisons with Conductor or OpenAI Agents API
- Agent Zero vs Conductor
- Agent Zero vs OpenAI Agents API
- Aider vs Conductor
- Aider vs OpenAI Agents API
- Amp vs Conductor
- Amp vs OpenAI Agents API
- Antigravity CLI vs Conductor
- Antigravity CLI vs OpenAI Agents API
- Auggie CLI vs Conductor
- Auggie CLI vs OpenAI Agents API
- AXLR vs Conductor
- AXLR vs OpenAI Agents API
- Claude Code vs Conductor
- Claude Code vs OpenAI Agents API
- Cline vs Conductor
- Cline vs OpenAI Agents API
- Conductor vs Crush
- Conductor vs Cursor CLI
- Conductor vs DeepSeek Harness (dsh)
- Conductor vs dsh-superagent (DeepSeek)
- Conductor vs Devin
- Conductor vs Droid CLI
- Conductor vs Pi
- Conductor vs Emdash
- Conductor vs Gemini CLI
- Conductor vs GitHub Copilot CLI
- Conductor vs goose
- Conductor vs Harness²
- Conductor vs HarnessRouter
- Conductor vs Jules
- Conductor vs Junie CLI
- Conductor vs Kilo Code CLI
- Conductor vs Kimi Code CLI
- Conductor vs Kiro CLI
- Conductor vs Letta
- Conductor vs mini-swe-agent
- Conductor vs MiniMax Code
- Conductor vs Mistral Vibe CLI
- Conductor vs Muse Code
- Conductor vs OpenAI Codex
- Conductor vs OpenCode
- Conductor vs OpenHands
- Conductor vs OpenMausBot
- Conductor vs Orca
- Conductor vs Paseo
- Conductor vs Prime Agent
- Conductor vs Qoder CLI
- Conductor vs Qwen Code
- Conductor vs Mirror CLI
- Conductor vs Rovo Dev CLI
- Conductor vs Sculptor
- Conductor vs T3 Code
- Conductor vs Traycer
- Conductor vs Unstoppable
- Conductor vs Verdent
- Conductor vs Vibe-Trading
- Conductor vs Warp (Warp Agent CLI and the Oz Agent API)
- Crush vs OpenAI Agents API
- Cursor CLI vs OpenAI Agents API
- DeepSeek Harness (dsh) vs OpenAI Agents API
- dsh-superagent (DeepSeek) vs OpenAI Agents API
- Devin vs OpenAI Agents API
- Droid CLI vs OpenAI Agents API
- Pi vs OpenAI Agents API
- Emdash vs OpenAI Agents API
- Gemini CLI vs OpenAI Agents API
- GitHub Copilot CLI vs OpenAI Agents API
- goose vs OpenAI Agents API
- Harness² vs OpenAI Agents API
- HarnessRouter vs OpenAI Agents API
- Jules vs OpenAI Agents API
- Junie CLI vs OpenAI Agents API
- Kilo Code CLI vs OpenAI Agents API
- Kimi Code CLI vs OpenAI Agents API
- Kiro CLI vs OpenAI Agents API
- Letta vs OpenAI Agents API
- mini-swe-agent vs OpenAI Agents API
- MiniMax Code vs OpenAI Agents API
- Mistral Vibe CLI vs OpenAI Agents API
- Muse Code vs OpenAI Agents API
- OpenAI Agents API vs OpenAI Codex
- OpenAI Agents API vs OpenCode
- OpenAI Agents API vs OpenHands
- OpenAI Agents API vs OpenMausBot
- OpenAI Agents API vs Orca
- OpenAI Agents API vs Paseo
- OpenAI Agents API vs Prime Agent
- OpenAI Agents API vs Qoder CLI
- OpenAI Agents API vs Qwen Code
- OpenAI Agents API vs Mirror CLI
- OpenAI Agents API vs Rovo Dev CLI
- OpenAI Agents API vs Sculptor
- OpenAI Agents API vs T3 Code
- OpenAI Agents API vs Traycer
- OpenAI Agents API vs Unstoppable
- OpenAI Agents API vs Verdent
- OpenAI Agents API vs Vibe-Trading
- OpenAI Agents API vs Warp (Warp Agent CLI and the Oz Agent API)
- Clawboo vs Conductor
- CLI Manager vs Conductor
- Conductor vs Harness
- Conductor vs Paperclip
- Conductor vs Parallax
Machine-readable
- This page as Markdown
/compare/conductor-vs-openai-agents-api.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/conductor.json·/api/v1/tools/openai-agents-api.json - From a terminal
anchor compare conductor openai-agents-api(the CLI) - Over MCP
compare_tools {"a": "conductor", "b": "openai-agents-api"}at/mcp, no key