# OpenAI Codex vs OpenCode (slim)

> OpenAI Codex has a score of 73.4 (BB) against OpenCode's 68 (B). Both do agent harness. The largest gap is security & auth, 22 points. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/openai-codex-vs-opencode.md (~1,500 tokens) · this version ~330 tokens · JSON https://www.anchorterminal.com/compare/openai-codex-vs-opencode.json · canonical https://www.anchorterminal.com/compare/openai-codex-vs-opencode
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05

OpenAI Codex has a score of 73.4 (BB) against OpenCode's 68 (B). Both do agent harness. The largest gap is security & auth, 22 points.

- OpenAI Codex: BB 73.4, rank #58 of 452 · https://www.anchorterminal.com/tools/openai-codex.min.md
- OpenCode: B 68, rank #134 of 452 · https://www.anchorterminal.com/tools/opencode.min.md
- Pick OpenAI Codex for security & auth (+22), maintenance & community (+6), transparency & trust (+12). Pick OpenCode for reliability (+13).

| Category | OpenAI Codex | OpenCode |
| --- | --- | --- |
| Reliability (16%) | 55 | 68 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 90 | 88 |
| Agent ergonomics (13%) | 80 | 79 |
| Security & auth (14%) | 82 | 60 |
| Payments & pricing (10%) | 60 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 87 | 81 |
| Transparency & trust (7%) | 83 | 71 |