GPT-5.4 mini API pricing
GPT-5.4 mini costs $0.75 per million input tokens and $4.5 per million output tokens. A typical chatbot request (about 1,500 input + 400 output tokens) costs $0.0029, or $2.93 per 1,000 requests.
0 characters0 words0 tokens (GPT o200k)
| Model | Per month |
|---|---|
| GPT-5.4 mini |
≈ = estimated token count: only OpenAI publishes its tokenizer. Claude counts use Anthropic’s published ratios; use the count_tokens API for an exact number.
GPT-5.4 mini price per million tokens
USD, OpenAI standard tier. Prices checked on October 28, 2026.
| Token type | Price per 1M | With Batch API |
|---|---|---|
| Input | $0.75 | $0.375 |
| Cached input | $0.075 | $0.0375 |
| Output | $4.5 | $2.25 |
Model ID: gpt-5.4-mini · Source: developers.openai.com
What a GPT-5.4 mini request costs
| Request | Per request | Per 1,000 |
|---|---|---|
| Short chat reply 500 input + 200 output tokens | $0.0013 | $1.28 |
| Chatbot turn with context 1,500 input + 400 output tokens | $0.0029 | $2.93 |
| Document Q&A (RAG) 8,000 input + 500 output tokens | $0.0083 | $8.25 |
| Long-document summary 150,000 input + 2,000 output tokens | $0.12 | $122 |
Token counts are measured with GPT's o200k tokenizer and converted for GPT-5.4 mini (see below). No caching or batch discount.
Similarly priced models
| Model | Chatbot request | vs GPT-5.4 mini |
|---|---|---|
| Gemini 3.8 Flash Google | $0.0027 | −8% |
| Gemini 3.6 Flash Google | $0.0027 | −8% |
| Grok 4.3 xAI | $0.0030 | +1% |
| Grok 4.20 xAI | $0.0030 | +1% |
| o4-mini OpenAI | $0.0034 | +17% |
| GPT-6.1 Terra OpenAI | $0.0035 | +20% |
Frequently asked questions
How much does the GPT-5.4 mini API cost?
GPT-5.4 mini costs $0.75 per million input tokens and $4.5 per million output tokens on OpenAI's standard tier. Prices checked on October 28, 2026.
How much does one GPT-5.4 mini request cost?
A typical chatbot request with about 1,500 input and 400 output tokens costs about $0.0029, or $2.93 per 1,000 requests. Paste your own prompt into the calculator on this page for an exact estimate.
Does GPT-5.4 mini support prompt caching?
Yes. Cached input costs $0.075 per million tokens, 90% less than regular input.
Does GPT-5.4 mini have a Batch API discount?
Yes: 50% off for requests sent through the Batch API, which may take up to 24 hours. That makes it $0.375 / $2.25 per million input / output tokens.
How are GPT-5.4 mini tokens counted?
GPT-5.4 mini's tokenizer is not published; we use the o200k count, which is close for newer OpenAI models.