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GPT-5.6 Sol Ultrafast
watchingLimited preview Aug 13 — select customers only, no public price; watching for general availability. Swept every 60 seconds across provider catalogs. The moment it answers on a public API, alerts fire: a free Chrome push the second it's confirmed, a free email about 15 minutes later, texts or a call on paid plans.
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Timeline
OpenAI previewed Ultrafast today: GPT-5.6 Sol at up to 14x the speed, in the API, to a select group of customers. The important word is tier. This is not a new model — it is a new way to serve one that has been live since July 9, running on Cerebras hardware instead of OpenAI's standard stack.
The official word
We alert on verified API behavior, never on announcements alone — but when OpenAI speaks, it's here: openai.com/news ↗
GPT-5.6 Sol Ultrafast: quick answers
Is GPT-5.6 Sol Ultrafast out yet?
Not yet. ArtificialWatch has not seen GPT-5.6 Sol Ultrafast answer on any public API it sweeps. The moment it does, subscribers get an alert.
Who makes GPT-5.6 Sol Ultrafast?
OpenAI. ArtificialWatch also tracks GPT-6.1 Sol, GPT-6 Luna, GPT-6 Sol, GPT-Live-1, GPT-Image-2.5, GPT-6 Astra, ChatGPT-5.6 and GPT-5.5 from OpenAI.
More from OpenAI
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