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GPT 5 Codex

At a glance

GPT-5 optimized for code generation and software engineering tasks.

400K ctx
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AI Output
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Benchmarks
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CodingInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Epoch AI· as of 2026-10-02
Agentic
Terminal Tasks44.3%
Specs
400K
Context
128K
Max output
—
Released
Capabilities
Vision
Audio
Reasoning
Pricing
Pricing not available
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