TREE NEWS update: OpenAI Developers said GPT-6.1 Sol’s Ultrafast mode is rolling out from today across the API, Codex and ChatGPT Work, with intelligence close to GPT-6 Astra and speeds up to 8x that of Sol’s standard mode. API pricing is $12 per million input tokens and $60 per million output tokens, 1.2x Astra’s. In Codex and ChatGPT Work it is limited to Pro 500, eligible usage-based Enterprise and credit-based Education users.
OpenAI launches Ultrafast mode for GPT-6.1 Sol, up to 8x faster
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AI take
The tiering here is the story: Ultrafast is positioned as a near-Astra intelligence at a premium over Astra's own pricing, which suggests OpenAI is selling latency as a distinct axis rather than folding it into a general model upgrade. Restricting Codex and ChatGPT Work access to the highest-paying Pro, Enterprise and Education tiers makes speed a retention lever for heavy coding and agentic workloads rather than a broad API feature. Whether that gating holds, or whether faster modes become table stakes across providers, is the open question worth watching.
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