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GPT 5.2 Codex

At a glance

Optimized for software engineering and coding workflows.

400K ctx$1.75/$14.00 per M
Demos
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AI Output
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Benchmarks
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Reasoning
CodingInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Epoch AI·OpenRouter· as of 2026-10-02
Agentic
Terminal Tasks66.5%
Specs
400K
Context
128K
Max output
Jan 2026
Released
Capabilities
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$1.75/M tokens
Output$14.00/M tokens
Cache read$0.17/M tokens
Web search$0.01/search
Chat with GPT 5.2 CodexGo to model