> ## Documentation Index
> Fetch the complete documentation index at: https://docs.venice.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# OpenAI GPT OSS 120B API

> OpenAI GPT OSS 120B API on Venice: 128K context, $0.07 input and $0.30 output per 1M tokens. Private and end-to-end encrypted variants.

> [accordion] Plain-text specification
>
> ## OpenAI GPT OSS 120B API
>
> OpenAI GPT OSS 120B is a large language model by OpenAI, available on the Venice API as `openai-gpt-oss-120b`. Private and end-to-end encrypted variants are available.
>
> gpt-oss-120b is an open-weight, 117B-parameter Mixture-of-Experts (MoE) language model from OpenAI designed for high-reasoning, agentic, and general-purpose production use cases. The model supports configurable reasoning depth, full chain-of-thought access, and native tool use, including function calling, browsing, and structured output generation
>
> ### OpenAI GPT OSS 120B API pricing
>
> | Model ID | Variant | Privacy | Price |
> | - | - | - | - |
> | `openai-gpt-oss-120b` | Standard | Private | $0.07 / $0.30 per 1M |
> | `e2ee-gpt-oss-120b-p` | E2EE | E2EE | $0.13 / $0.65 per 1M |
>
> ### OpenAI GPT OSS 120B specifications
>
> | Spec | Value |
> | - | - |
> | Provider | OpenAI |
> | Released | Nov 6, 2025 |
> | Privacy | Private, E2EE |
> | Status | Stable |
> | Open weights | Yes |
> | License | Apache 2.0 |
> | Context window | 128K tokens |
> | Max output | 16K tokens |
> | Reasoning effort | none, low, medium, high |
>
> ### How to use the OpenAI GPT OSS 120B API
>
> Send requests to `POST https://api.venice.ai/api/v1/chat/completions` with `"model": "openai-gpt-oss-120b"` and your API key.
>
> ```bash theme={"system"}
> curl https://api.venice.ai/api/v1/chat/completions \
>   -H "Authorization: Bearer $VENICE_API_KEY" \
>   -H "Content-Type: application/json" \
>   -d '{
>     "model": "openai-gpt-oss-120b",
>     "messages": [{ "role": "user", "content": "Explain TEE attestation in two sentences." }],
>     "reasoning_effort": "low"
>   }'
> ```
>
> ### Related models
>
> * [Google Gemma 3 27B Instruct API](https://docs.venice.ai/models/google-gemma-3-27b-instruct.md): $0.12 / $0.20 per 1M
> * [Mistral Small 3.2 24B Instruct API](https://docs.venice.ai/models/mistral-small-3-2-24b-instruct.md): $0.0938 / $0.25 per 1M
> * [NVIDIA Nemotron 3 Nano 30B API](https://docs.venice.ai/models/nvidia-nemotron-3-nano-30b.md): $0.075 / $0.30 per 1M
> * [GLM 4.7 Flash Heretic API](https://docs.venice.ai/models/glm-4-7-flash-heretic.md): $0.07 / $0.40 per 1M


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