GPT-5 mini pricing
OpenAI · list prices as of 2026-09-29
| Input | $0.25 per 1M tokens |
|---|---|
| Output | $2 per 1M tokens |
| Cached input (read) | $0.025 per 1M tokens |
| Batch / async | 50% off |
| Context window | 400K tokens |
| Longest answer | 128K tokens |
What a call costs
| Typical call | Input tokens | Output tokens | Per call | Per month at 1,000 a day |
|---|---|---|---|---|
| Chat reply | 1,000 | 300 | $0.00085 | $25.50 |
| Document summary | 6,000 | 400 | $0.0023 | $69.00 |
| Code change | 3,000 | 1,200 | $0.00315 | $94.50 |
No caching or batch discount. Your own prompt will differ: count it exactly below.
Price your own prompt on GPT-5 miniSimilarly priced models
- GPT-4.1 mini (OpenAI): 1.0× more
- GPT-3.5 Turbo (OpenAI): 1.1× more
- Mistral Large 3 (Mistral): 1.1× more
- Gemini 3.1 Flash-Lite (Google): 1.2× cheaper
- Gemini 3.1 Flash-Lite (preview) (Google): 1.2× cheaper
Questions
How much does GPT-5 mini cost?
GPT-5 mini costs $0.25 per million input tokens and $2 per million output tokens, as of 2026-09-29.
How much is one GPT-5 mini call?
A call with 1,000 input tokens and a 300-token answer costs about $0.00085, or $25.50 a month at 1,000 calls a day.
How big is the GPT-5 mini context window?
400,000 tokens.