Mistral Medium 3.5
Mistral Medium 3.5 is an open-weight language model from Mistral AI, released on May 22, 2026.
- Developer
- Mistral AI
- Released
- May 22, 2026
- Total parameters
- 128B
- Architecture
- Dense
- Context window
- 256K
- Input
- Text, image
- License
- Modified MIT License
- Commercial use
- Yes, with conditions
- Official weights, GB
- 133.6 GB
- Hugging Face repository
- huggingface.co
- Checked on
Mistral Medium 3.5 is a dense model with 128B parameters. Mistral AI lists a context window of 256K tokens. The model accepts text and image input. The weights are released under the Modified MIT License. Commercial use is allowed with conditions. Companies with global consolidated monthly revenue above US$20 million, or their employees, may not use the model without a separate commercial license from Mistral AI. An attribution notice is required.
The official weights on Hugging Face take about 134 GB. Running the model needs at least that much memory across GPUs and system RAM, plus room for the context cache; quantized versions need less.
- Total parameters, billions
- 128B
- Context window, tokens
- 256K
- License type
- Modified MIT
- License conditions
- Companies with global consolidated monthly revenue above US$20 million, or their employees, may not use the model without a separate commercial license from Mistral AI. An attribution notice is required.
- Weights precision
- FP8 + BF16
- Official quantized or alternative versions
- mistralai/Mistral-Medium-3.5-128B-EAGLE (speculative-decoding head)
- License text
- huggingface.co
- Sources
Page URL Hugging Face model card https://huggingface.co/mistralai/Mistral-Medium-3.5-128B/raw/main/README.md License text on Hugging Face https://huggingface.co/mistralai/Mistral-Medium-3.5-128B/raw/main/LICENSE Hugging Face API https://huggingface.co/api/models/mistralai/Mistral-Medium-3.5-128B?expand=safetensors mistral.ai announcement https://mistral.ai/news/vibe-remote-agents-mistral-medium-3-5
Questions
What license does Mistral Medium 3.5 use?
Can I use Mistral Medium 3.5 commercially?
How much memory does Mistral Medium 3.5 need?
How many parameters does Mistral Medium 3.5 have?
Sources
Every figure comes from the developer’s model card, license text and official announcements, and from the model’s Hugging Face repository metadata. Each model page lists its sources and the date they were checked; the register is rechecked every week.