GPT 5.2 Codex
openai/gpt-5.2-codex
Creator
OpenAIReleased
2025-12-18Weights
not reportedContext
400k tokens ~Price in / out per Mtok
$1.75 ~ / $14.00 ~OpenRouter routed price — not the vendor's list price, fetched 2026-10-19
State
rankedHealth summary
1 of 1 score sit on benchmarks that still discriminate. Every number here has been measured independently. 1 sits on benchmarks with a high risk of test-set contamination.
Scores
| Benchmark | Config | Score | Harness | Provenance | Measured | Health |
|---|---|---|---|---|---|---|
| Coding | ||||||
| Terminal-Benchactive | base | 66.5% | Deep Agents | ind. | 2025-12-18 | contaminated |