Previewing Ultrafast mode: GPT-5.6 Sol at up to 14X the speed
Preview Ultrafast, a new OpenAI API service tier that runs GPT-5.6 Sol up to 14× faster.
At a glance
- Source
- OpenAI
- Published
- Aug 13, 2026
- Read time
- 1 min read
- Primary lane
- Product
Quick read
3 bullets- Preview Ultrafast, a new OpenAI API service tier that runs GPT-5.6 Sol up to 14× faster.
- Powered by Cerebras, it delivers up to 750 output tokens per second.
- The post was published on Aug 13, 2026.
Why it matters
Product updates matter when they expand what builders and teams can actually ship now. A release is important if it changes capability, usability, or deployment economics in a way that affects real workflows.
Builder takeaway
OpenAI published this update in the Product lane. Use the original source for details, then compare it with related briefings before changing a roadmap, workflow, or production system.
Product updates matter when they expand what builders and teams can actually ship now. A release is important if it changes capability, usability, or deployment economics in a way that affects real workflows.
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