Open Source Model Open Source

OpenAI gpt-oss

OpenAI's open-weight language models designed for powerful reasoning, agentic tasks, and versatile developer use cases.

6/10 MegaOne Score
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Price Free / Open Source
Category Open Source Model
Model Open Source
Company OpenAI
Team Size 8,000
Total Funding $122.0B

The OpenAI gpt-oss collection features gpt-oss-120b and gpt-oss-20b, open-weight language models released in August 2025. These models are designed for powerful reasoning, agentic tasks, and versatile developer use cases, available under a permissive Apache 2.0 license. They support configurable reasoning effort, full chain-of-thought, and are optimized for efficient deployment on various hardware, including consumer devices.

6/10

OpenAI's gpt-oss models represent a significant strategic shift toward open-weight releases with 20K GitHub stars, but hold only a mid-tier market position in the competitive open-source landscape. While technically solid and backed by OpenAI's reputation, they face strong competition from established players like Meta's Llama and newer entrants like DeepSeek.

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