OpenAI Launches GPT-5.6 Sol Fast Mode: 2.5x Speed at 2x Price

OpenAI · x · 2026-07-31

OpenAI detailed the new Fast mode for GPT-5.6 Sol, which delivers processing speeds up to 2.5x faster than Standard processing, priced at 2x the Standard rate.

This mode gives API customers faster access to GPT-5.6 Sol without compromising the model's intelligence level.

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