OpenAI introduces ‘Ultrafast,’ a new mode that makes GPT 5.6 Sol work at 14x the speed
THE SO WHAT
A 14x speed mode is a workflow unlock more than a model upgrade—use cases that were bottlenecked by latency (interactive coding, agents, real-time decision loops) are now back on the table. If you’re building on GPT-5.6 Sol, re-run your cost/latency models and see which “too slow” ideas just became viable.
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