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MiniMax-M3

MiniMax-M3 is an open-weight language model from MiniMax, released on May 31, 2026.

Developer
MiniMax
Released
May 31, 2026
Total parameters
~428B
Active parameters per token
~23B
Architecture
MoE
Context window
1M
Input
Text, image, video
License
MiniMax Community License
Commercial use
Yes, with conditions
Official weights, GB
869.2 GB
Hugging Face repository
huggingface.co
Checked on

MiniMax-M3 is a mixture-of-experts model with about 428B total parameters, of which about 23B are active for each token. MiniMax lists a context window of 1M tokens. The model accepts text, image and video input.

The weights are released under the MiniMax Community License. Commercial use is allowed with conditions. Commercial users must display “Built with MiniMax M3” and either notify MiniMax once (up to US$20 million in yearly revenue) or get prior written authorization (above US$20 million). The license lists prohibited uses, including military use.

The official weights on Hugging Face take about 869 GB in BF16. 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
428B
Active parameters, billions
23B
Context window, tokens
1M
License type
Custom license
License conditions
Commercial users must display "Built with MiniMax M3" and either notify MiniMax once (up to US$20 million in yearly revenue) or get prior written authorization (above US$20 million). The license lists prohibited uses, including military use.
Weights precision
BF16
Official quantized or alternative versions
MiniMaxAI/MiniMax-M3-MXFP8
License text
huggingface.co
Sources
PageURL
Hugging Face model cardhttps://huggingface.co/MiniMaxAI/MiniMax-M3/raw/main/README.md
License text on Hugging Facehttps://huggingface.co/MiniMaxAI/MiniMax-M3/raw/main/LICENSE
Hugging Face APIhttps://huggingface.co/api/models/MiniMaxAI/MiniMax-M3?expand=safetensors
minimax.io announcementhttps://www.minimax.io/blog/minimax-m3

Questions

What license does MiniMax-M3 use?
The weights are released under the MiniMax Community License.
Can I use MiniMax-M3 commercially?
Yes, with conditions. Commercial users must display “Built with MiniMax M3” and either notify MiniMax once (up to US$20 million in yearly revenue) or get prior written authorization (above US$20 million). Military use is among the prohibited uses.
How much memory does MiniMax-M3 need?
The official BF16 weights take about 869 GB; MiniMax also publishes an MXFP8 version, which needs less. The memory calculator checks which setups fit.
How many parameters does MiniMax-M3 have?
About 428B in total, of which about 23B are active for each token, with a context window of 1M tokens and text, image and video input.

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.

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