Open-Source OpenAI Models
The best open-weight OpenAI model is gpt-oss-120b (23.8 intelligence) — downloadable from Hugging Face and self-hostable. gpt-oss-20b (14.9) and gpt-oss-20b (free) (14.9) round out the top three.
The best open-source AI models — open-weight, downloadable from Hugging Face and self-hostable — ranked by intelligence. Open-source alternatives to proprietary frontier models.
- 1
gpt-oss-120bReasoningToolsJSON23.8 intel · $0.037/M · 131K ctx23.8Intelligence - 2gpt-oss-20bReasoningToolsJSON14.9 intel · $0.030/M · 131K ctx14.9Intelligence
- 3gpt-oss-20b:freeReasoningToolsJSON14.9 intel · Free/M · 131K ctx14.9Intelligence
- 4gpt-oss-safeguard-20bReasoningToolsJSON$0.075/M · 131K ctx—Intelligence
Frequently asked
What is the best open-source OpenAI model?
The best open-weight OpenAI model is gpt-oss-120b (23.8 intelligence) — downloadable from Hugging Face and self-hostable. gpt-oss-20b (14.9) and gpt-oss-20b (free) (14.9) round out the top three.
What's a good alternative to gpt-oss-120b?
gpt-oss-20b (14.9) is the closest alternative on this metric, followed by gpt-oss-20b (free) (14.9). See the full ranking above for the tradeoffs.
How many OpenAI models are there?
modelgrep tracks 73 OpenAI models with live benchmarks, speed, latency and per-provider pricing, led on intelligence by GPT-5.6 Sol. 4 of them qualify for this ranking.