OpenAI pricing & limits changelog
Product: ChatGPT / OpenAI API
5 changes tracked since 2026-07-30; latest 2026-10-20.
Pricing
| Date | Company | Type | Change | Status |
|---|---|---|---|---|
| 2026-10-20 | OpenAI | pricing | 12-hour prompt caching option added; 12-hour cache writes cost 2.5x the input token price. | verified |
| 2026-08-21 | OpenAI | pricing | GPT-5.6 Sol price reduced to $4 input / $20 output per 1M tokens (promotional, at least through 2026-11-21). | verified |
| 2026-07-30 | OpenAI | pricing | GPT-5.6 Luna price cut 80% and GPT-5.6 Terra price cut 20%. | verified |
Rate limits
| Date | Company | Type | Change | Status |
|---|---|---|---|---|
| 2026-10-06 | OpenAI | rate-limit | API usage tiers simplified from five to three (Build, Launch, Grow). | verified |
Plans
| Date | Company | Type | Change | Status |
|---|---|---|---|---|
| 2026-07-30 | OpenAI | plan | Fast mode replaced the Priority Processing offering; for GPT-5.6 Sol it is priced at twice standard. | verified |
FAQ
When did OpenAI last change its pricing?
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).
When did OpenAI last change its rate limits?
2026-10-06: API usage tiers simplified from five to three (Build, Launch, Grow). Source: https://platform.openai.com/docs/changelog (entry).
When did OpenAI last change its plans?
2026-07-30: Fast mode replaced the Priority Processing offering; for GPT-5.6 Sol it is priced at twice standard. Source: https://platform.openai.com/docs/changelog (entry).
Sources we watch
- pricing: https://platform.openai.com/docs/pricing (monitored, last checked 2026-10-22)
- pricing: https://developers.openai.com/api/docs/pricing (monitored, last checked 2026-10-22)
- rate_limits: https://platform.openai.com/docs/guides/rate-limits (monitored, last checked 2026-10-22)
- changelog: https://platform.openai.com/docs/changelog (monitored, last checked 2026-10-22)