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90% fewer refusals (10/100 Uncensored vs 98/100 Original) while preserving model quality (0.0178 KL divergence).

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Creating these models takes significant time, work and compute. If you find them useful consider supporting me:

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This is a decensored version of MiniMaxAI/MiniMax-M3, made using Heretic v1.2.0 with the Arbitrary-Rank Ablation (ARA) method

Abliteration parameters

Parameter Value
start_layer_index 20
end_layer_index 32
preserve_good_behavior_weight 0.6111
steer_bad_behavior_weight 0.0012
overcorrect_relative_weight 1.1028
neighbor_count 11

Targeted components

  • attn.o_proj

Performance

Metric This model Original model (MiniMaxAI/MiniMax-M3)
KL divergence 0.0178 0 (by definition)
Refusals 10/100 98/100

Lower refusals indicate fewer content restrictions, while lower KL divergence indicates more closeness to the original model's baseline. Higher refusals cause more rejections, objections, pushbacks, lecturing, censorship, softening and deflections.


MiniMax

MiniMax Agent API MiniMax Website
ModelScope MiniMax AI WeChat Discord Hugging Face GitHub arXiv Paper LICENSE

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.

GQA vs MSA Efficiency Comparison

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

How to Use

M3 supports three reasoning modes through the thinking parameter:

  • enabled — Reasoning is always enabled.
  • adaptive — M3 automatically determines when additional reasoning is beneficial.
  • disabled — Reasoning is disabled to minimize latency and maximize throughput.

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.

Contact Us

Contact us at model@minimax.io.

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