OpenAI (ChatGPT) pricing and rate-limit changes, October 2026
2 dated changes to OpenAI (ChatGPT) (ChatGPT / OpenAI API) recorded in October 2026, 2026-10-06 to 2026-10-20. Each links the official source. This page lists changes, not OpenAI (ChatGPT)'s current limit tables.
Pricing
| Date | Change | Source | Status |
|---|---|---|---|
| 2026-10-20 | 12-hour prompt caching option added; 12-hour cache writes cost 2.5x the input token price.Old: No 12-hour caching option (not stated)New: 12-hour caching available; writes at 2.5x input price | source · current price | verified |
Rate limits
| Date | Change | Source | Status |
|---|---|---|---|
| 2026-10-06 | API usage tiers simplified from five to three (Build, Launch, Grow).Old: Five usage tiersNew: Three usage tiers: Build, Launch, Grow | source · current price | verified |
FAQ
Did OpenAI (ChatGPT) change its pricing in October 2026?
Yes, 1 recorded change. 2026-10-20: 12-hour prompt caching option added; 12-hour cache writes cost 2.5x the input token price. Source: https://platform.openai.com/docs/changelog (entry).
Did OpenAI (ChatGPT) change its rate limits in October 2026?
Yes, 1 recorded change. 2026-10-06: API usage tiers simplified from five to three (Build, Launch, Grow). Source: https://platform.openai.com/docs/changelog (entry).
All OpenAI (ChatGPT) changes · All companies, October 2026 · Methodology