Release notes
OpenAI Ultrafast mode announcement
Published by OpenAI
About this resource
You want the primary-source August 13, 2026 OpenAI changelog entry for Ultrafast mode before teaching or adopting the new GPT-5.6 Sol latency tradeoff.
Release notes
Published by OpenAI
You want the primary-source August 13, 2026 OpenAI changelog entry for Ultrafast mode before teaching or adopting the new GPT-5.6 Sol latency tradeoff.