# gpt-oss-120b

**Current Snapshot:** gpt-oss-120b

`gpt-oss-120b`is our most powerful open-weight model, which fits into a single
H100 GPU (117B parameters with 5.1B active parameters).

[Download gpt-oss-120b on HuggingFace](https://huggingface.co/openai/gpt-oss-120b).

**Key features**

- **Permissive Apache 2.0 license:** Build freely without copyleft restrictions
  or patent riskâideal for experimentation, customization, and commercial
  deployment.
- **Configurable reasoning effort:** Easily adjust the reasoning effort (low,
  medium, high) based on your specific use case and latency needs.
- **Full chain-of-thought:** Gain complete access to the model's reasoning
  process, facilitating easier debugging and increased trust in outputs.
- **Fine-tunable:** Fully customize models to your specific use case through
  parameter fine-tuning.
- **Agentic capabilities:** Use the models' native capabilities for function
  calling, web browsing, Python code execution, and structured outputs.

## Snapshots

## Supported Tools

- function_calling
- code_interpreter
- mcp
- web_search

## Rate Limits

### gpt-oss-120b

| Tier   | RPM | TPM | Batch Queue Limit |
| ------ | --- | --- | ----------------- |
| tier_1 |     |     |                   |
| tier_2 |     |     |                   |
| tier_3 |     |     |                   |
| tier_4 |     |     |                   |
| tier_5 |     |     |                   |