o4 Mini High API pricing
As of October 22, 2026, OpenAI o4 Mini High costs $1.10 per million input tokens and $4.40 per million output tokens on OpenAI's own API, with cached input at $0.275 per million.
o4 Mini High benchmarks and specs · Every OpenAI model's price
- Input, per million tokens$1.10
- Output, per million tokens$4.40
- Cached input, per million$0.275
- Context window200K tokens
- Max output100K tokens
- Output speedNot measured
What a request costs
Three fixed token mixes at the list price, without cache or batch discounts. For a whole month, use the calculator.
| Workload | Tokens | One request | 1,000 requests | Fits the context window |
|---|---|---|---|---|
| Chat turn | 1K input + 500 output tokens | $0.0033 | $3.30 | Yes |
| Repository review | 50K input + 3K output tokens | $0.068 | $68.20 | Yes |
| Agent loop | 200K input + 10K output tokens | $0.264 | $264.00 | No, it would need splitting |
| Solved coding task | One SWE-bench Verified attempt, divided by the share that succeed | Not computable | Not computable |
Price history
We have read OpenAI's own price every day since October 21, 2026. It has not changed yet; any change will be listed here with its date.
- October 21, 2026 First recorded: $1.10 input, $4.40 output
Cheaper models as good as o4 Mini High
o4 Mini High has no overall or coding score, so we make no quality claim against it.
o4 Mini High pricing questions
- How much does o4 Mini High cost per million tokens?
- $1.10 per million input tokens and $4.40 per million output tokens, as listed on OpenRouter on October 22, 2026.
- Does o4 Mini High support prompt caching?
- Yes. OpenRouter lists cached input at $0.275 per million tokens, against $1.10 for uncached input.
- Has the price of o4 Mini High changed?
- Not since we started recording it daily on October 21, 2026.