GPT-5.4 Mini API pricing
As of October 21, 2026, OpenAI GPT-5.4 Mini costs $0.75 per million input tokens and $4.50 per million output tokens through OpenRouter, with cached input at $0.075 per million.
GPT-5.4 Mini benchmarks and specs · Every OpenAI model's price
- Input, per million tokens$0.75
- Output, per million tokens$4.50
- Cached input, per million$0.075
- Context window400K tokens
- Max output128K 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 | $0.0030 | $3.00 | Yes |
| Repository review | 50K input + 3K output tokens | $0.051 | $51.00 | Yes |
| Agent loop | 200K input + 10K output tokens | $0.195 | $195.00 | Yes |
| Solved coding task | One SWE-bench Verified attempt, divided by the share that succeed | $0.70 | $700.00 |
Price history
We read this price every day and have since October 15, 2026. It has not changed yet; any change will be listed here with its date.
- October 15, 2026 First recorded: $0.75 input, $4.50 output
Cheaper models as good as GPT-5.4 Mini
Models within two points of GPT-5.4 Mini or above it on the Artificial Analysis Intelligence Index, with a lower output price. Cheapest first.
- Ling 3.0 Flash VL$0.18 Overall 24.6 against 24.1 · 96% cheaper output
- DeepSeek V4 Flash 0423$0.182 Overall 24.4 against 24.1 · 96% cheaper output
- Solar Mini 4$0.20 Overall 24.1 against 24.1 · 96% cheaper output
- Ling 3.1 Flash$0.225 Overall 41.1 against 24.1 · 95% cheaper output
- MiMo-V2.6-Flash$0.28 Overall 37.9 against 24.1 · 94% cheaper output
GPT-5.4 Mini pricing questions
- How much does GPT-5.4 Mini cost per million tokens?
- $0.75 per million input tokens and $4.50 per million output tokens, as listed on OpenRouter on October 21, 2026.
- Does GPT-5.4 Mini support prompt caching?
- Yes. OpenRouter lists cached input at $0.075 per million tokens, against $0.75 for uncached input.
- Is there a cheaper model as good as GPT-5.4 Mini?
- Ling 3.0 Flash VL scores 24.6 on the Artificial Analysis Intelligence Index, within two points of GPT-5.4 Mini or above it, and costs $0.18 per million output tokens.
- Has the price of GPT-5.4 Mini changed?
- Not since we started recording it daily on October 15, 2026.