Open-source 120B parameter model with reasoning capabilities via Groq inference.
LLM Gateway routes requests to the best providers that are able to handle your prompt size and parameters.
Open-source 120B parameter model with reasoning capabilities via Groq inference. You can access it through LLM Gateway's OpenAI-compatible API with automatic provider routing, fallback, and cost analytics.
Pricing for GPT OSS 120B on LLM Gateway starts at $0.03 per million input tokens and $0.14 per million output tokens, depending on the provider. The pricing table above always reflects the current per-provider rates.
GPT OSS 120B supports a context window of up to 131,072 tokens on its largest provider deployment.
GPT OSS 120B is served by SCX.ai (Turbo), Runware, Azure, Together AI, ByteDance, Cerebras, Groq through LLM Gateway. Requests are automatically routed to the best available provider, with fallback when a provider has issues.
GPT OSS 120B supports tool (function) calling and soft JSON output, but NOT strict JSON output schema (its upstream provider does not enforce it).
GPT OSS 120B was released on August 5, 2025.