GGUF Release: Handcrafted APEX-I-MiniPlus (3.36 BPW) for 4GB-24GB VRAM setups

#2
by IsValorum - opened

Hi everyone!

I have created and published a custom, handcrafted APEX-I-MiniPlus (3.36 BPW) quantization of Iris-mini:
πŸ‘‰ IsValorum/Iris-mini-MTP-APEX-I-MiniPlus-GGUF

Key Highlights & Benchmarks:

  • Custom Mixed-Precision Architecture: Built using deep multi-domain importance matrix (imatrix). Sensitive core routing and embedding layers are protected in Q4_K/Q5_K while inactive expert weights are compressed to IQ3_XXS/IQ3_S.
  • Budget Hardware / 4GB VRAM Capable: Empirically verified in Unsloth Studio. Uses only ~3.8 GB VRAM with remaining weights offloaded to RAM (DDR4 3200). With MTP disabled, it delivers 23 to 26+ tok/s generation and 300 to 410 tok/s prefill on budget laptop hardware.
  • Full Context Scalability: Fully documented for 24GB GPUs supporting the full native context window with Q8 KV cache.

Feel free to check it out!

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