OpenAI
GPT-5 Codex
GPT-5 Codex by OpenAI — compare inference API pricing across providers.
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API Pricing
No pricing data available for this model at the moment.
Prices updated daily. Last check: Sep 30, 2026
Performance & Benchmarks
Source: Artificial Analysis →Intelligence
24.9 / 100
Math
98.7 / 100
Reasoning & Knowledge
- MMLU-Pro86.5%
- GPQA Diamond83.7%
- Humanity's Last Exam27.8%
Coding
- LiveCodeBench84.0%
Math
- AIME 202598.7%
Agentic & Tool Use
- Terminal-Bench Hard37.9%
- τ²-bench86.8%
Instruction & Long Context
- IFBench74.1%
- Long-Context Reasoning71.7%
Benchmarks measured Sep 2026. Scores are independent evaluations, not vendor-reported.
Model Details
General
- Creator
- OpenAI
- Modalities
- Text
Capabilities
- Tool Calling
- No
- Open Source
- No