Major Release OpenAI · Released
GPT-5.4 nano
What is GPT-5.4 nano?
GPT-5.4 nano is a Major Release AI model from OpenAI, released on March 17, 2026. It has a 400K tokens context window, costs $0.20 per million input tokens, and scores 1406 on Chatbot Arena Elo. It is available via the company's API.
OpenAI GPT-5.4 nano — AA Intelligence Index 44.0, 400K tokens context, reasoning model.
How much does GPT-5.4 nano cost?
| Metric | Price |
|---|---|
| input per mtok | $0.20 |
| output per mtok | $1.25 |
| cache read per mtok | $0.02 |
Pricing data verified .
What context window does GPT-5.4 nano have?
- Context window
- 400K tokens
- Max output
- 128K
- Input modalities
- text, image
- Output modalities
- text
How does GPT-5.4 nano score on benchmarks?
| Benchmark | Score |
|---|---|
| GPQA Diamond | 81.7% |
| HLE | 26.5% |
| SciCode | 46.9% |
| TAU2-bench | 76.0% |
| TerminalBench-Hard | 42.4% |
| IF-Bench | 75.9% |
| LiveCodeBench Reasoning | 66.0% |
| AA Intelligence Index | 44.0 |
| Chatbot Arena Elo | 1406 |
Benchmark scores verified .