OpenAI
Every OpenAI model in the catalog, sorted by review volume.
openai.com
The lab behind the GPT series and ChatGPT, and the company most responsible for the current shape of the LLM market. Its commercial lineup spans the flagship GPT models, all closed-weight.
In 2025 it returned to open weights for the first time since GPT-2 with gpt-oss-120b and gpt-oss-20b, Apache 2.0 licensed reasoning models that third-party hosts like Cloudflare, Groq, and others now serve.
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ChatGPT 5.5
1 review added
overall rating 8.0out of 10Top rated tasks
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gpt-oss-120b
0 reviews added
Not yet rated