OPENAI · MODEL TELEMETRY CARD

GPT-5.3-Codex

Canonical UID: openai/gpt-5.3-codex · Released: 2026-02-05

Measured configurations of GPT-5.3-Codex across benchmark suites. Exact machine values in site.json and data dumps.
Domain Benchmark Effort / Mode ⚡ Value/Cost # 🏆 Performance # Score Task $ Unit Cost $ Unit
Code ALE-Bench XHIGH #10 / 94 #14 / 94 1655.22 $0.559265 $0.0003379 rating point

Compare against all models on ← #frontier Live Ranking Board · Fixed-capability cost half-life analysis on /methodology.