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linuxid10t/
Laguna-M.1-GGUF

Name: Laguna-M.1-GGUF
Availability: InStock

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Laguna-M.1 GGUF

GGUF quantizations of poolside/Laguna-M.1. Converted and tested with a patched fork of llama.cpp that implements LLM_ARCH_LAGUNA from scratch.

Requires the custom fork. Upstream llama.cpp does not support this architecture. Fork: https://github.com/linuxid10t/llama.cpp-add-laguna

The same fork also converts and runs the Laguna-XS.2 sibling (33B-A3B, mixed SWA + global attention, per-head attention gate, half-rotary global layers) — see its own repo.

Laguna-M.1 is the all-full-attention member of the family: every layer attends over the full context, uses a per-element attention gate, and applies full rotary on every layer. It has no sliding-window layers at all.

Files

File	Quant	Size	Notes
`Laguna-M.1-f16.gguf`	f16	~420 GB	Full precision, reference
`Laguna-M.1-Q4_K_M.gguf`	Q4_K_M	~125 GB	Recommended for most users
`Laguna-M.1-IQ4_XS.gguf`	IQ4_XS	~115 GB	Smallest practical quant

(Sizes are approximate. This is a ~226B-parameter MoE — even Q4_K_M is ~125 GB, so running it requires either a multi-GPU box with enough VRAM, or a machine with plentiful RAM and the patience for mmap'd CPU inference.)

Usage

git clone https://github.com/linuxid10t/llama.cpp-add-laguna
cd llama.cpp-add-laguna && cmake -B build && cmake --build build -j$(nproc)

./build/bin/llama-cli \
  -m Laguna-M.1-Q4_K_M.gguf \
  --ctx-size 262144 \
  --temp 0 \
  -p "The capital of France is"

Chat / thinking mode — `--jinja` required

Laguna-M.1 ships the laguna_glm_thinking_v4 chat template. The fork's built-in auto-detector recognizes the v5 marker used by Laguna-XS.2, so it does not auto-match M.1 and the CLI will report "custom template not supported". Pass --jinja to use the template embedded in the GGUF (the converter resolves and writes it directly):

# Thinking on (default) — model prefills <think> and generates a reasoning trace
./build/bin/llama-cli -m Laguna-M.1-Q4_K_M.gguf -cnv --jinja --ctx-size 32768

# Thinking off — direct answer, no reasoning trace
./build/bin/llama-cli -m Laguna-M.1-Q4_K_M.gguf -cnv --jinja --ctx-size 32768 --reasoning off

The thinking-mode prefix, EOT token (</assistant>, token 24), and stop-word stripping are all handled automatically once --jinja is supplied.

Architecture

Per config.json (Laguna-M.1 has no sliding-window layers — sliding_window = 0, layer_types all full_attention):

Property	Value
Parameters	~226B total, ~22B active per token
Layers	70 (3 dense + 67 sparse)
Attention heads	64 (uniform — no per-layer head counts)
KV heads	8 (GQA)
Head dim	128
Q/K norm	RMSNorm per head
Attention gate	Per-element softplus gate on SDPA output, applied on all layers
Sliding window	None (full attention on every layer)
Experts	256 routed (top-16) + 1 shared
Dense layers	Layers 0–2 (`mlp_only_layers = [0, 1, 2]`)
Dense FFN intermediate	16,384
Expert FFN intermediate	1,024 (routed and shared)
MoE router	Sigmoid + `e_score_correction_bias` (added at selection, not routing)
Routing scale	`moe_routed_scaling_factor` = 1.0, L1-normalized weights (`norm_topk_prob`)
RoPE	YaRN: base 500K, factor 64, original_max 4096, β_fast 64, β_slow 1, attention_factor 1.0
Rotary	Full rotary on every layer (`partial_rotary_factor = 1.0`)
Context length	262,144 tokens
Vocab	100,352
Norm eps	1e-6

Implementation Notes

Attention gate (per-element): Every layer has a self_attn.g_proj that projects the hidden state (4096) to num_heads × head_dim = 64 × 128 = 8192 values — one gate per attention output element, not one per head. This is softplus-gated and multiplied element-wise into the SDPA output before o_proj. The converter detects the mode from the actual g_proj tensor shape (per-element ⟺ out_features == n_head × head_dim) and writes the attention.gate_per_head key accordingly (here false). This matters because config gating is written inconsistently across the family (a mode string on M.1, a bool on XS.2), so the tensor shape is the only reliable source — laguna.cpp declares the gate tensor as {4096, 8192} and applies a plain ggml_mul. (Laguna-XS.2 instead uses per-head gating: g_proj outputs num_heads scalars, broadcast across head_dim.)

Full rotary, single RoPE: With partial_rotary_factor = 1.0, every layer rotates the entire head dimension (128). The converter writes rope.dimension_count = 128; because there are no sliding layers, rope.dimension_count_swa is omitted. There is only one rope config (full_attention), used on all 70 layers.

No SWA path: sliding_window = 0 and every layer is full_attention, so is_swa_any() is false and the model sets swa_type = NONE. The graph builder takes the plain build_attn_inp_kv() / build_attn() path on every layer rather than the iswa (interleaved sliding-window) path used by XS.2. (This is required by llama_model::create_memory, which asserts swa_type != NONE iff there are SWA layers — leaving it STANDARD with zero SWA layers crashes at context creation.)

MoE routing: Top-16 of 256 experts per token, plus one shared expert on every sparse layer. Router logits pass through sigmoid (not softmax), biased by a per-expert e_score_correction_bias that is added only during top-k selection, not during weight computation. Routing weights are L1-normalized (norm_topk_prob = true) before scaling by moe_routed_scaling_factor (= 1.0 on M.1; = 2.5 on XS.2). Layers 0–2 are dense FFN (intermediate_size = 16384); layers 3–69 are sparse.

Tensor layout: Same split-per-expert checkpoint layout and MoE structure as Laguna-XS.2 — the converter buffers the per-expert gate_proj / up_proj / down_proj tensors and stacks them into merged 3D tensors, with a single shared_expert and e_score_correction_bias located under experts (not gate).

Stop token: </assistant> is token 24, a regular vocabulary token (not a special token). The converter registers it as an EOT (config eos_token_id = [2, 24]), and the fork adds it to antiprompt so the stop-word erase logic strips it from streaming output.

Tested

f16 GGUF loads and runs under the fork (architecture, tensor, and KV metadata all validated through a successful conversion + load) ✓

⚠️ No quality validation yet. Numerical validation against HF Transformers requires CUDA/ROCm and was not performed. On CPU (mmap), the ~226B MoE is I/O-bound — roughly tens of seconds per token on 60 GB RAM — so prompt-quality spot checks were impractical. Treat these weights as structurally correct and loadable, not as a verified-quality release.

Known Limitations

No SWA, no per-layer head counts, no partial rotary — these XS.2 features do not apply to M.1; don't expect the same command-line behavior (e.g. there is nothing for the sliding-window KV cache to do here).
Chat template requires --jinja — see above.
Numerical validation against HF Transformers not yet done (requires CUDA/ROCm).
Q4_K_M vs f16 top-1 token agreement not formally checked (the 420 GB f16 GGUF exceeds available RAM for a full comparison).

linuxid10t/Laguna-M.1-GGUF