Experimental int4 w4a16, I have not been able to test it as the vLLM M3's support PR does not support pipeline paralelism and I don't have the hardware to test tensor paralelism, so here may be dragons, but people like to tinker.
You will need this PR from vllm to make it work https://github.com/vllm-project/vllm/pull/45381
This is using RTN quantization, not full calibrated Auto-round.

MiniMax

MiniMax Agent

MiniMax-M3 is a native multimodal model with 1M context. It has ~428B parameters and ~23B activated parameters.

Highlights:

Native Multimodality: M3 undergoes mixed-modality training from the very first step, enabling deeper semantic fusion across text, image, and video.
Context Scaling via Sparse Attention: M3 introduces MiniMax Sparse Attention (MSA) to improve long context efficiency. M3 delivers 9× prefill and 15× decode speedups compared to M2 at 1M context, reducing per-token compute to 1/20.
Coding & Cowork Capability: M3 achieves frontier-level performance across long-horizon agentic benchmarks, excelling in both coding and cowork.

MiniMax Sparse Attention (MSA)

M3 is powered by MiniMax Sparse Attention (MSA), a high-performance sparse attention operator designed for million-token contexts. Compared with GQA, MSA dramatically reduces the attention compute and memory footprint while preserving model quality.

📄 Read the technical report: arXiv:2606.13392 · Hugging Face Papers

How to Use

M3 supports two reasoning modes:

thinking — for complex reasoning, agentic tasks, and long-horizon collaboration.
non-thinking — for latency-sensitive scenarios such as chat and code completion.

Local Deployment

Download the model:

hf download MiniMaxAI/MiniMax-M3 --local-dir MiniMax-M3

We recommend the following inference frameworks (listed alphabetically) to serve the model:

Inference Parameters

We recommend the following parameters for best performance: temperature=1.0, top_p=0.95, top_k=40.

bullerwins/MiniMax-M3-4bit-W4A16-v0

MiniMax Sparse Attention (MSA)

How to Use

Local Deployment

Inference Parameters

Contact Us

bullerwins/
MiniMax-M3-4bit-W4A16-v0