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. It activates 5.1B parameters per forward pass and is optimized...
Specifications
| Provider | OpenAI |
|---|---|
| Context window | 131,072 tokens (131K) |
| Input price | $0.03 / 1M tokens |
| Output price | $0.17 / 1M tokens |
| Input modalities | text |
| Output modalities | text |
| Model ID | openai/gpt-oss-120b |
Pricing is per 1M tokens, indicative pricing via OpenRouter (updated 2026-08-22); a provider's own list price may differ.
Frequently asked questions
How much does gpt-oss-120b cost?
Indicative pricing (via OpenRouter, updated 2026-08-22) is $0.03 per 1M input tokens and $0.17 per 1M output tokens. A provider's own list price may differ. On Vincony, gpt-oss-120b is available on credit-based pricing alongside 800+ other models.
What is gpt-oss-120b's context window?
gpt-oss-120b supports a context window of up to 131,072 tokens (131K), which is how much text it can consider at once.
Who makes gpt-oss-120b?
gpt-oss-120b is built by OpenAI. You can access it — and compare it against other providers' models — through Vincony's multi-model platform.
How do I use gpt-oss-120b?
You can use gpt-oss-120b directly through OpenAI, or via Vincony, which aggregates 800+ models (including gpt-oss-120b) into one interface with side-by-side comparison and credit-based pricing.