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Comparison of OpenAI: GPT-5.3-Codex
1 modelopenaiOpenAI: GPT-5.3-CodexRemove ×
What’s differentGPT-5.3-Codex is OpenAI’s most advanced agentic coding model, combining the frontier software engineering performance of GPT-5.2-Codex with the broader reasoning and professional knowledge capabilities of…
DateFeb 24, 2026Listed
Listed rate$1.75 in / $14.00 out/ 1M tokensAzure · via OpenRouter · all routes ↗azure
Provider endpoints5 endpoints →
Context window400K
Max output128K
Parameters—
Tool callingSupported
Structured outputSupported
Image inputSupported
ReasoningSupported
Prompt cachingSupported

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