# MiniMax M3 open-weight frontier model

> MiniMax, one of China's fast-moving AI labs, has released M3, an open-weight model that pairs frontier ambitions with unusually long memory. Its standout feature is a new attention design, which MiniMax calls MSA, that it says handles a one-million-token context roughly four times faster than conventional approaches. In plain terms, the model can hold enormous amounts of text, code, or data in view at once without the usual speed penalty. The capabilities go beyond length. M3 posts competitive scores on demanding developer tests, including 59.0 percent on SWE-Bench Pro and 66.0 percent on Terminal-Bench 2.1, and it is multimodal, able to work with images and video and even operate a desktop. The open-weight part is the real story. Releasing a model this capable for anyone to download and run pushes hard against the closed, API-only strategy of the biggest Western labs, and it is a big reason the gap between open and frontier systems keeps shrinking. For builders who want control and privacy, a powerful long-context model they can host themselves is exactly the kind of release that matters.

_Section: [Interesting AI Articles](https://www.wortins.com/articles) · Source: MiniMax Research · Published Saturday, September 5, 2026_

## Wortins' read

MiniMax, one of China's fast-moving AI labs, has released M3, an open-weight model that pairs frontier ambitions with unusually long memory. Its standout feature is a new attention design, which MiniMax calls MSA, that it says handles a one-million-token context roughly four times faster than conventional approaches. In plain terms, the model can hold enormous amounts of text, code, or data in view at once without the usual speed penalty. The capabilities go beyond length. M3 posts competitive scores on demanding developer tests, including 59.0 percent on SWE-Bench Pro and 66.0 percent on Terminal-Bench 2.1, and it is multimodal, able to work with images and video and even operate a desktop. The open-weight part is the real story. Releasing a model this capable for anyone to download and run pushes hard against the closed, API-only strategy of the biggest Western labs, and it is a big reason the gap between open and frontier systems keeps shrinking. For builders who want control and privacy, a powerful long-context model they can host themselves is exactly the kind of release that matters.

## Source

[Read the full story at MiniMax Research](https://www.minimax.io/blog/minimax-m3)

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