OpenAI GPT OSS 120B

OpenAI · 128K token context · text

Pricing: $0.0093 per 1M input tokens, $0.04 per 1M output tokens

OpenAI GPT OSS 120B

Pricing

$0.0093 per 1M input tokens and $0.04 per 1M output tokens. Billing is per token: input tokens are charged at the input rate and output tokens at the output rate, from one llmka.dev balance.

Prices checked 2026-11-04

Context and limits

The context window is 128,000 tokens (128K).

The maximum output is 16,384 tokens.

When to use OpenAI GPT OSS 120B

OpenAI GPT OSS 120B (model ID `openai-gpt-oss-120b`) takes text input and returns text output.

Supported features in the catalog: function calling (tools), streamed responses over SSE.

Use OpenAI GPT OSS 120B for text generation and chat.

FAQ

How much does OpenAI GPT OSS 120B cost?

$0.0093 per 1M input tokens and $0.04 per 1M output tokens. Billing is per token: input tokens are charged at the input rate and output tokens at the output rate, from one llmka.dev balance.

What is the context window and output limit of OpenAI GPT OSS 120B?

The context window is 128,000 tokens (128K). The maximum output is 16,384 tokens.

How do I get access to OpenAI GPT OSS 120B?

Create an API key in the llmka.dev dashboard and send requests to model "openai-gpt-oss-120b" at https://api.llmka.dev/v1. The endpoint is OpenAI-compatible. One key and one balance cover all models on the gateway.

Links

All models and prices · API documentation · Quick start

Available through the llmka.dev gateway: OpenAI- and Anthropic-compatible endpoints, one key, USDT top-up.