OpenAI rolls out GPT-6.1 Sol Ultrafast, up to 8x faster than Sol Standard
OpenAI said its Ultrafast version of GPT-6.1 Sol is rolling out in the API, Codex and ChatGPT Work, offering what it describes as "near-Astra intelligence at up to 8x faster speeds than Sol Standard." On the API it is pay-as-you-go at $12 per million input tokens and $60 per million output tokens, six times the standard Sol rate of $2/$10, and OpenRouter said the model is live on its platform the same day. In Codex and ChatGPT Work, Ultrafast is limited to Pro 500 subscribers, qualifying pay-as-you-go Enterprise users and Edu users, and some developers reported that its token consumption is correspondingly fast.
It gives API developers a near-flagship intelligence plus speed option for real-time agents, while the higher price and subscription gating make fast responses a paid extra.