OpenAI: GPT-5.4 Nano
The OpenAI GPT-5.4 Nano is a large language model that can process text, images, and files as input. It has a context length of 400,000 tokens and supports tools and reasoning capabilities. This model may be worth considering for those who prioritize robust processing capabilities and are willing to pay $1.25 per million output tokens. Its benchmark blended score is 35.3 across one independent metric, suggesting it performs well in this area; however, more comprehensive testing would provide a clearer picture of its overall strengths and weaknesses.
Benchmark results
Independent, published benchmarks. Blended score 31.5 across 1 benchmark, last refreshed 2026-09-23. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 34.2 |
- Model ID
- openai/gpt-5.4-nano
- Vendor
- openai
- Released
- March 2026
- Tokenizer
- GPT
- Input Modalities
- file, image, text
- Output Modalities
- text
- Max Output
- 128,000 tokens
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- ✓ accepts images
- Audio
- no
- Moderated
- yes
What it costs in practice
Computed from the current $0.20/M input and $1.25/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | under $0.01 |
| Classify 1,000 customer emails | 500k in / 50k out | $0.16 |
| A month of a busy support chatbot | 5M in / 2M out | $3.50 |
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Quick answers
- How much does OpenAI: GPT-5.4 Nano cost?
- $0.20 per million input tokens and $1.25 per million output tokens.
- What is OpenAI: GPT-5.4 Nano's context window?
- 400,000 tokens, roughly 600 pages of text in a single request.
- Does OpenAI: GPT-5.4 Nano support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can OpenAI: GPT-5.4 Nano process images?
- Yes, it accepts image input.