Availability
Available 46 of 46 tracked days. Daily snapshots show whether this model was accessible as a free model on OpenRouter.
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| OpenAI: gpt-oss-120b (free) | 0 | ||||||||||||||||||||||||||||||
About
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
Error Rate
Based on feedback reported by Free LLM Router users. Error rate reflects the percentage of requests that encountered issues such as rate limiting, unavailability, or errors. Learn more.
| Model | 1h | 6h | 24h | 7d | 30d |
|---|---|---|---|---|---|
| OpenAI: gpt-oss-120b (free) | - | - | - | 100.0% | 100.0% |
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Frequently Asked Questions
Is OpenAI: gpt-oss-120b (free) still free to use?
OpenAI: gpt-oss-120b (free) is no longer available as a free model on OpenRouter.
What is the context window for OpenAI: gpt-oss-120b (free)?
OpenAI: gpt-oss-120b (free) supports a context window of 131K tokens (131,072 tokens).
What is the maximum output length for OpenAI: gpt-oss-120b (free)?
OpenAI: gpt-oss-120b (free) can generate up to 131K tokens (131,072 tokens) per response.
Does OpenAI: gpt-oss-120b (free) support function calling (tools)?
Yes, OpenAI: gpt-oss-120b (free) supports function calling / tool use, enabling it to interact with external APIs and services.
Does OpenAI: gpt-oss-120b (free) support reasoning?
Yes, OpenAI: gpt-oss-120b (free) supports reasoning capabilities, allowing it to show its step-by-step thought process.