GPT-5.4 Mini
Last verified August 17, 2026 · OpenAI pricing ↗$0.750/1M input · $4.50/1M output · 400K context · OpenAI
GPT-5.4 Mini costs $0.750 per 1M input tokens and $4.50 per 1M output tokens from OpenAI, with a 400K-token context window. A typical chat reply (1,500 tokens in, 400 out) costs $0.0029, or $29.25 per 10,000 requests. On that workload it is cheaper than 81 of the 168 other buyable models tracked here.
When to use GPT-5.4 Mini
The sweet spot for high-volume applications. 70% cheaper than GPT-5.4 with surprisingly close performance on most tasks. Use when you need thousands of API calls per day without burning through budget.
- 3x cheaper than GPT-5.4 for input tokens
- 400K context window covers most use cases
- Fast response times for real-time applications
- Supports cached input pricing
- Computer use and tool calling support
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What GPT-5.4 Mini Costs Per Request
At $0.750 per 1M input and $4.50 per 1M output tokens, before caching or batch discounts.
| Workload | Input / output tokens | Per request | Per 10,000 requests |
|---|---|---|---|
| Chat reply | 1,500 / 400 | $0.0029 | $29.25 |
| RAG answer over retrieved docs | 8,000 / 600 | $0.0087 | $87.00 |
| Coding-agent step | 30,000 / 2,000 | $0.032 | $315.00 |
GPT-5.4 Mini vs Similarly Priced Models
Nearest buyable models by price, with the RAG answer above (8,000 in / 600 out) priced on each.
| Model | Input /1M | Output /1M | Context | RAG answer |
|---|---|---|---|---|
| GPT-5.4 Mini OpenAI | $0.750 | $4.50 | 400K | $0.0087 |
| o4 Mini OpenAI | $1.10 | $4.40 | 200K | $0.011 |
| Gemini 3.1 Flash Live Google | $0.750 | $4.50 | 1.0M | $0.0087 |
| Doubao Seed 2.1 Pro ByteDance | $0.880 | $4.41 | 262K | $0.0097 |
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