GPT-5-codex
ModelActiveby OpenAI · family “gpt-codex”
Epoch Capabilities Index
Not scored by Epoch AI
Released
15 Sep 2025
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Input $ / 1M tokens
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Cached input $ / 1M
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Each benchmark shown separately with its own source
Benchmark results (2)
| Benchmark | Domain | Score | vs best recorded | Setting | Run | Source |
|---|---|---|---|---|---|---|
| Terminal Bench | agents | 44.3% ±2.7 | 52% | agent: Codex CLI | 15 Sep 2025 | External ↗ |
| WeirdML | coding | 54.5% | 58% | — | — | External ↗ |
Source: Epoch AI Benchmarking Hub (CC BY 4.0). “External” rows are leaderboard results Epoch collects from third parties. Best reported setting per benchmark is shown.
API list price over time
Price history
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0 observations (OpenRouter listing). History accumulates with every ingest run; a single point means no change has been observed yet.
Events
- Model launch13mo agoOpenAI releases GPT-5-codexEpoch AI Benchmarking Hub