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OpenAI: gpt-oss-120b (free)
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...
Best for
Complex ReasoningMath & LogicResearchAutonomous Agents
Context Window
131K tokens ≈ 291 pages of text
Input Cost
$0.04/1M
Output Cost
$0.19/1M
Latency p50
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Pricing Details
Standard Pricing
Input (per 1M tokens)
$0.04
Output (per 1M tokens)
$0.19
Hallucination Score™ (est.)
Community reliability estimate · not official
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Not yet rated
About this score: Community-estimated based on user reports and publicly available benchmark data (e.g. TruthfulQA). This is not an official score from the model provider. Scores may be inaccurate — always verify with the official leaderboard before making production decisions.
Price History
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Provider
openai
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