GPT 5.5 Launches Fast Mode in Codex for 1.5x Speed - AI Dynamics

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GPT 5.5 Launches Fast Mode in Codex for 1.5x Speed

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29 April 2026 7h57

PSA: GPT 5.5 ships with /fast mode in Codex Same model. 1.5x FASTER

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29 April 2026

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