GPT-5 Nano: Pricing, Context Window & Benchmarks
by OpenAI
GPT-5 is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and accuracy in high-stakes use cases. It supports test-time routing features and advanced prompt understanding, including user-specified intent like "think hard about this." Improvements include reductions in hallucination, sycophancy, and better performance in coding, writing, and health-related tasks.
What you can do with GPT-5 Nano
Everyday Q&A and clear explanations
Writing help (emails, posts, summaries)
Idea generation and brainstorming
Learning support with step-by-step guidance
Composite Indices
Intelligence, Coding, Math
Standard Benchmarks
Academic and industry benchmarks
Benchmark Highlights
| Metric | Value |
|---|---|
| Provider | OpenAI |
| Context Window | 400,000 tokens |
| Input Price | $0.05/1M tokens |
| Output Price | $0.40/1M tokens |
| Release Date | Aug 7, 2025 |
| Modalities | text, image, file |
| Capabilities | Vision |
Compare GPT-5 Nano to other models
See how it stacks up on price, quality, and overall performance.
Frequently asked questions
What is GPT-5 Nano good for?
Use GPT-5 Nano for everyday tasks like writing, summarizing, brainstorming, and getting clear explanations.
How much does GPT-5 Nano cost?
Pricing is based on usage. Current rates are $0.05/1M tokens for input and $0.40/1M tokens for output.
Can I try GPT-5 Nano for free?
Yes. You can start a chat instantly and test the model before deciding on a plan.
Does GPT-5 Nano support images or audio?
GPT-5 Nano can understand images.
Suggested comparisons
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Benchmarks and pricing are sourced from Artificial Analysis where available. OpenRouter specs are used as a fallback.
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