# GPT-5 nano

**Current Snapshot:** gpt-5-nano-2025-08-07

GPT-5 Nano is our fastest, cheapest version of GPT-5. It's great for
summarization and classification tasks. Learn more in our
[GPT-5 usage guide](/docs/guides/gpt-5).

## Snapshots

### gpt-5-nano-2025-08-07

- Context window size: 400000
- Knowledge cutoff date: 2024-05-31
- Maximum output tokens: 128000
- Supported features: streaming, function_calling, file_search, file_uploads,
  structured_outputs, image_input, prompt_caching, fine_tuning

## Supported Tools

- function_calling
- file_search
- image_generation
- code_interpreter
- mcp

## Rate Limits

### gpt-5-nano

| Tier   | RPM   | TPM       | Batch Queue Limit |
| ------ | ----- | --------- | ----------------- |
| tier_1 | 500   | 200000    | 2000000           |
| tier_2 | 5000  | 2000000   | 20000000          |
| tier_3 | 5000  | 4000000   | 40000000          |
| tier_4 | 10000 | 10000000  | 1000000000        |
| tier_5 | 30000 | 180000000 | 15000000000       |