# clm_FD20D5B9F714

subject: OpenAI (/record/openai.md)  
predicate: feature_added  
value: Fast mode  
valid_from: 2026-07-30  
valid_to: null  
published: 2026-07-30  
recorded: 2026-10-31  
confidence: 0.70  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-10-31  
checked: 2026-10-31 · its source page states the value and the date  

> July, 2026 Jul 30 Update gpt-5.6-sol gpt-5.6-terra gpt-5.6-luna v1/responses v1/chat/completions Starting July 30, GPT-5.6 Luna costs 80% less, while GPT-5.6 Terra costs 20% less. See pricing details . We're also introducing Fast mode in the API, which replaces our Priority Processing offering.

What https://developers.openai.com/api/docs/changelog#2026-08-05 says, word for word.

## Sources

- https://developers.openai.com/api/docs/changelog#2026-08-05 (primary, OpenAI, published 2026-08-05)
- https://developers.openai.com/api/docs/changelog#2026-07-30 (primary, OpenAI, published 2026-07-30)

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AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.