GPT-5.4 nano pricing
OpenAI · list prices as of 2026-09-29
| Input | $0.20 per 1M tokens |
|---|---|
| Output | $1.25 per 1M tokens |
| Cached input (read) | $0.02 per 1M tokens |
| Batch / async | 50% off |
| Context window | 272K 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 | $0.000575 | $17.25 |
| Document summary | 6,000 | 400 | $0.0017 | $51.00 |
| Code change | 3,000 | 1,200 | $0.0021 | $63.00 |
No caching or batch discount. Your own prompt will differ: count it exactly below.
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Questions
How much does GPT-5.4 nano cost?
GPT-5.4 nano costs $0.20 per million input tokens and $1.25 per million output tokens, as of 2026-09-29.
How much is one GPT-5.4 nano call?
A call with 1,000 input tokens and a 300-token answer costs about $0.000575, or $17.25 a month at 1,000 calls a day.
How big is the GPT-5.4 nano context window?
272,000 tokens.