GPT-5.3 released by...?

GPT-5.3 released by…?

OpenAI’s release strategy has undergone a visible shift toward iterative deployment, moving away from the “big bang” launches of the past. As of February 2026, the focus has landed squarely on the refinement of the GPT-5 architecture. The progression from version 5.1 to 5.2 established a clear cadence for incremental updates, making the arrival of…

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