OLMo
Fully open language models from Ai2
Ai2's OLMo releases the model weights together with training data, code and logs. It is aimed at researchers who need to inspect how a model was built, not only run it.
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Llama
Open-weight providers
Meta's open-weight model family
DeepSeek-V3
Open-weight providers
Open weights for DeepSeek's V3 mixture-of-experts model
Gemma
Open-weight providers
Google's lightweight open models
GLM-4.5
Open-weight providers
Z.ai's open GLM model series
gpt-oss
Open-weight providers
OpenAI's open-weight reasoning models
IBM Granite
Open-weight providers
IBM's open enterprise language models