mudler/MiniMax-M2.7-APEX-GGUF

MiniMax-M2.7 APEX GGUF

APEX (Adaptive Precision for EXpert Models) quantizations of MiniMax-M2.7.

Brought to you by the LocalAI team | APEX Project | Technical Report

Note: MiniMax M2 architecture support in llama.cpp is still maturing. If you encounter inference issues, ensure you're using a recent llama.cpp build (b8766+) and report issues upstream.

Benchmark Results

Benchmarks coming soon. For reference APEX benchmarks on the Gemma 4 26B-A4B architecture, see mudler/gemma-4-26B-A4B-it-APEX-GGUF.

Available Files

File	Profile	Size	Best For
MiniMax-M2.7-APEX-I-Quality.gguf	I-Quality	130 GB	Highest quality with imatrix
MiniMax-M2.7-APEX-Quality.gguf	Quality	130 GB	Highest quality standard
MiniMax-M2.7-APEX-I-Balanced.gguf	I-Balanced	155 GB	Best overall quality/size ratio
MiniMax-M2.7-APEX-Balanced.gguf	Balanced	155 GB	General purpose
MiniMax-M2.7-APEX-I-Compact.gguf	I-Compact	100 GB	Multi-GPU setups, best quality/size
MiniMax-M2.7-APEX-Compact.gguf	Compact	100 GB	Multi-GPU setups
MiniMax-M2.7-APEX-I-Mini.gguf	I-Mini	81 GB	Smallest viable

What is APEX?

APEX is a quantization strategy for Mixture-of-Experts (MoE) models. It classifies tensors by role (routed expert, shared expert, attention) and applies a layer-wise precision gradient -- edge layers get higher precision, middle layers get more aggressive compression. I-variants use diverse imatrix calibration (chat, code, reasoning, tool-calling, agentic traces, Wikipedia).

See the APEX project for full details, technical report, and scripts.

Architecture

• Model: MiniMax-M2.7 (MiniMaxM2)
• Layers: 62
• Experts: 256 routed (8 active per token)
• Total Parameters: 228.7B
• Active Parameters: ~45B per token
• Source Format: FP8 (float8_e4m3fn, block-quantized 128x128)
• Intermediate Format: BF16 (dequantized during conversion)
• APEX Config: 5+5 symmetric edge gradient across 62 layers
• Calibration: v1.2 diverse dataset (chat, code, reasoning, multilingual, tool-calling, Wikipedia)

Run with LocalAI

local-ai run mudler/MiniMax-M2.7-APEX-GGUF@MiniMax-M2.7-APEX-I-Balanced.gguf

Credits

APEX is brought to you by the LocalAI team. Developed through human-driven, AI-assisted research. Built on llama.cpp.