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MiniMax M1

MiniMax

Released
June 13, 2025
Data date
September 8, 2026
Predecessor
MiniMax-01
Price
Input · Output / 1M tokens

MiniMax M1 was MiniMax’s first openly available large-scale hybrid-reasoning checkpoint. It combines 456B total parameters, 45.9B active parameters, and up to 1M tokens of context with hybrid attention aimed at long reasoning traces and large inputs. API access complements local use of the weights.

MiniMax says M1 was developed from the text model in MiniMax-01.

Specifications and access

SpecificationValue and source
Weights
Open weightsSource
Access
API, LocalSource
Parameters
456BSource
Active parameters
45.9BSource
Context window
1,000,000 tokensSource
Release
2025-06-13Source
Parameters
456 BSource
Active parameters
45.9 BSource