GPT-4o mini pricing
OpenAI · list prices as of 2026-09-29
| Input | $0.15 per 1M tokens |
|---|---|
| Output | $0.60 per 1M tokens |
| Cached input (read) | $0.075 per 1M tokens |
| Batch / async | 50% off |
| Context window | 128K tokens |
| Longest answer | 16K 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 | $0.00033 | $9.90 |
| Document summary | 6,000 | 400 | $0.00114 | $34.20 |
| Code change | 3,000 | 1,200 | $0.00117 | $35.10 |
No caching or batch discount. Your own prompt will differ: count it exactly below.
Price your own prompt on GPT-4o miniSimilarly priced models
- Llama 4 Scout (Meta): 1.1× more
- DeepSeek V3.2 (DeepSeek): 1.2× more
- Grok 3 mini (xAI): 1.4× more
- Qwen3 235B (Alibaba): 1.5× more
- Gemini 2.5 Flash-Lite (Google): 1.5× cheaper
Questions
How much does GPT-4o mini cost?
GPT-4o mini costs $0.15 per million input tokens and $0.60 per million output tokens, as of 2026-09-29.
How much is one GPT-4o mini call?
A call with 1,000 input tokens and a 300-token answer costs about $0.00033, or $9.90 a month at 1,000 calls a day.
How big is the GPT-4o mini context window?
128,000 tokens.