# Previewing Ultrafast mode: GPT-5.6 Sol at up to 14X the speed

DevFeed: [Previewing Ultrafast mode: GPT-5.6 Sol at up to 14X the speed](<https://devfeed.tech/articles/previewing-ultrafast-mode-gpt-5-6-sol-at-up-to-14x-the-speed-6618.md>)

Original publisher: [Read original article](<https://openai.com/index/previewing-ultrafast>)

Published: 2026-08-13T10:00:00Z

Content type: release

Language: en

Sources: [OpenAI News](<https://devfeed.tech/sources/openai-news.md>)

Topics: [API](<https://devfeed.tech/topics/api.md>), [OpenAI](<https://devfeed.tech/topics/openai.md>), [Artificial Intelligence](<https://devfeed.tech/topics/ai.md>), [incident](<https://devfeed.tech/topics/incident.md>), [Code](<https://devfeed.tech/topics/code.md>), [coding](<https://devfeed.tech/topics/coding.md>)

Tags: [ai](<https://devfeed.tech/tags/ai.md>), [announcement](<https://devfeed.tech/tags/announcement.md>), [api](<https://devfeed.tech/tags/api.md>), [gpt](<https://devfeed.tech/tags/gpt.md>), [incident](<https://devfeed.tech/tags/incident.md>), [incident-response](<https://devfeed.tech/tags/incident-response.md>), [logs](<https://devfeed.tech/tags/logs.md>), [models](<https://devfeed.tech/tags/models.md>), [openai](<https://devfeed.tech/tags/openai.md>), [outage](<https://devfeed.tech/tags/outage.md>), [product](<https://devfeed.tech/tags/product.md>), [speed](<https://devfeed.tech/tags/speed.md>), [tokens](<https://devfeed.tech/tags/tokens.md>), [workflows](<https://devfeed.tech/tags/workflows.md>)

## AI overview

OpenAI previews Ultrafast, an API service tier powered by Cerebras that runs GPT-5.6 Sol up to 14x faster than Standard processing and generates up to 750 output tokens per second. The article describes potential uses in incident response, financial research, customer support, commerce, and interactive experimentation.

## Source excerpt

Preview Ultrafast, a new OpenAI API service tier that runs GPT-5.6 Sol up to 14x faster. Powered by Cerebras, it delivers up to 750 output tokens per second.