Laguna-S-2.1-DFlash-exl3

Laguna-S-2.1-DFlash EXL3 (4.00 bpw)

EXL3 quantized build of the DFlash speculator (draft model) for Laguna S 2.1, converted from the official BF16 release with exllamav3.

• Architecture: DFlashLagunaForCausalLM (6 sliding-attention layers, block_size 16)
• Quantization: 4.00 bpw (head: 6.00 bpw), single 535 MB shard
• Shares token embedding + lm_head with the target; draft_vocab_size == vocab_size
• Verified: config.json + quantization_config.json present, conversion completed cleanly

[!IMPORTANT] This is a draft/speculator model, not a standalone chat model. It cannot generate text on its own — it proposes candidate tokens that the target model verifies. Use it as the draft model in a speculative decoding config, paired with a quant of poolside/Laguna-S-2.1.

Usage — TabbyAPI

Download the model with the Hugging Face CLI, then reference it by repo id:

hf download genevera/Laguna-S-2.1-DFlash-exl3 --local-dir models/genevera--Laguna-S-2.1-DFlash-exl3

# text_config.yml
model_name: <your-main-model-dir>
draft_model:
  draft_mode: model
  draft_model_name: genevera--Laguna-S-2.1-DFlash-exl3

Conversion details

• Source: poolside/Laguna-S-2.1-DFlash (BF16, 2.2 GB)
• Tool: exllamav3 convert_model (Python 3.10, fabric env)
• Bits: 4.0 | Head bits: 6 | Shards: 8192 MB max (single 535 MB file)
• Fits entirely on one GPU; TabbyAPI assigns devices automatically

Files