Checked fact 115511 Oct 2026Models and releases
The changelog says to use gpt-6.1-sol with service_tier: "ultrafast" to reduce the time between generated output tokens.
The exact words it rests on
Use `gpt-6.1-sol` with `service_tier: "ultrafast"` to reduce the time between generated output tokens.
What the source said when we opened it, on 11 Oct 2026.
The source
OpenAI API changelog
Checked
Checked by the notis newsroom on , against the source above.
In the story
OpenAI added Ultrafast mode for GPT-6.1 Sol, priced at $12 per million input tokens. 11 Oct 2026
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