GPT-5.3 Codex

OpenAIOpenAI
Released: Feb 6, 2026

Next-generation coding-optimized model from OpenAI with enhanced autonomous development capabilities

Context Window
272K
Max Output
33K
Pricing (per 1M tokens)
In: $1.5 Out: $12

Features

Advanced autonomous codingEnhanced code reviewMulti-step reasoningFull-stack development

Code Output

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No code samples available for GPT-5.3 Codex yet.

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