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GPT 5.3 Codex Spark Timeline - Announcements & Release History | AI Stats

GPT 5.3 Codex Spark

GPT 5.3 Codex Spark

GPT 5.3 Codex Spark

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Model Timeline

12 Feb 2026

Model Released

Model first made available to the public

12 Feb 2026

Model Announced

Model first introduced to the public

05 Feb 2026

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