OpenAI · GPT Codex line · coding
GPT-5.3 Codex was released by OpenAI on February 5, 2026, as a coding model in the GPT Codex line.
No detailed card for this model: we only add numbers published by the maker or by independent benchmarks. Sources: OpenAI · OpenAI
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GPT-5.3-Codex-Spark is the current model in this line. The card shows how long it has been since the last release against the line's usual gap and its recent ones — the rhythm, not a date.
Latest: GPT-5.3-Codex-Spark · Feb 12, 2026
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