Open Source Model Open Source

OpenAI gpt-oss

OpenAI gpt-oss is a family of 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 $180.0B
About OpenAI gpt-oss

OpenAI gpt-oss is a collection of open-weight Mixture-of-Experts (MoE) language models, including gpt-oss-120b (117B parameters) and gpt-oss-20b (21B parameters). These models are designed for high-reasoning, agentic workflows, and general-purpose production use cases, supporting configurable reasoning effort and full chain-of-thought capabilities. They are optimized for efficient deployment, with gpt-oss-120b fitting on a single 80GB GPU and gpt-oss-20b on a 16GB GPU, and are fine-tunable for specific use cases.

Why We Scored It 6/10
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.

Features & Platform
Free Tier
OpenAI gpt-oss Coverage
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