Laguna M.1 is Poolside's Apache-2.0 sparse MoE coding model: 225B total parameters, 23B activated parameters per token, 70 global-attention layers, 256 sparse experts after the first three dense layers, top-k=16 routing, RoPE with YaRN, softplus attention output gating, and a 262,144-token context window.

This repository contains imatrix GGUF quantizations of Laguna M.1 for local experimentation with long-context coding and agentic workloads. The files here are derivative GGUF artifacts built from Poolside's upstream BF16 safetensors; for model architecture, intended use, benchmark methodology, and serving notes, start with the upstream model card, release blog, and technical report linked above.

These GGUFs were produced during the Laguna support work that landed in ikawrakow/ik_llama.cpp#2003, "Add Laguna M.1 GGUF support". The PR was merged into ik_llama.cpp on 2026-06-22 as merge commit b47b90d0be80981f6f476c997afbdfab99bba6c7. At the time of quantization, the support branch commit was be7d53ceec0c823c07d540e21828d7d187b02d3b.

Laguna GGUF support is now available in ik_llama.cpp builds that include that merge commit or newer. Other runners still need equivalent Laguna GGUF support; the vanilla-compatible quant names below are chosen so that they should also be useful if equivalent Laguna support lands in upstream llama.cpp later.

License and attribution

The upstream Laguna M.1 checkpoint is licensed under the Apache License 2.0, copyright 2026 Poolside. This GGUF repository uses the same Apache-2.0 license metadata and is based on poolside/Laguna-M.1 at upstream revision 5bb2892a899809fd903829735f927207da358f2f.

Poolside's model names, branding, and logos remain Poolside's. This is an independent community GGUF conversion and quantization upload, not an official Poolside release.

Quantization summary

Quant	Status	Size	PPL	KL divergence	Same top
`IQ1_S_R4`	uploaded	43.54 GiB	17.029677 +/- 0.150383	1.771976 +/- 0.006119	55.882% +/- 0.137
`IQ1_S`	uploaded	43.91 GiB	20.451320 +/- 0.194807	1.920889 +/- 0.006747	53.988% +/- 0.138
`IQ2_XS`	uploaded	63.07 GiB	12.307893 +/- 0.111532	1.325747 +/- 0.005793	63.043% +/- 0.133
`IQ2_S`	uploaded	63.08 GiB	12.470802 +/- 0.113326	1.340981 +/- 0.005827	62.743% +/- 0.134
`IQ2_K_R4`	uploaded	64.35 GiB	13.397426 +/- 0.128657	1.387314 +/- 0.006164	62.577% +/- 0.134
`IQ2_M`	uploaded	69.47 GiB	12.101664 +/- 0.109158	1.294993 +/- 0.005730	63.149% +/- 0.133
`Q2_K`	uploaded	77.66 GiB	12.881872 +/- 0.123074	1.330646 +/- 0.005951	63.376% +/- 0.133
`IQ3_XXS`	uploaded	81.98 GiB	11.366560 +/- 0.103969	1.217616 +/- 0.005754	65.037% +/- 0.132
`IQ3_S`	uploaded	91.81 GiB	10.821543 +/- 0.095954	1.169696 +/- 0.005503	65.583% +/- 0.131
`IQ3_K_R4`	uploaded	91.81 GiB	11.210677 +/- 0.102925	1.181941 +/- 0.005637	65.717% +/- 0.131
`Q3_K_S`	uploaded	91.81 GiB	11.531644 +/- 0.106822	1.214226 +/- 0.005712	65.297% +/- 0.132
`Q3_K_M`	uploaded	100.91 GiB	11.246193 +/- 0.103685	1.186657 +/- 0.005657	65.816% +/- 0.131
`IQ4_XS`	uploaded	112.80 GiB	4.615172 +/- 0.033625	0.067625 +/- 0.000706	88.899% +/- 0.087
`IQ4_KS_R4`	uploaded	113.20 GiB	4.598246 +/- 0.033452	0.063984 +/- 0.000683	89.217% +/- 0.086
`IQ4_NL`	uploaded	119.26 GiB	4.605535 +/- 0.033524	0.066829 +/- 0.000720	89.049% +/- 0.086
`IQ4_K_R4`	uploaded	119.26 GiB	4.617317 +/- 0.033749	0.058367 +/- 0.000667	89.440% +/- 0.085
`Q4_K_S`	uploaded	119.91 GiB	4.599690 +/- 0.033491	0.065115 +/- 0.000694	89.013% +/- 0.086
`Q4_K_M`	uploaded	127.33 GiB	4.602518 +/- 0.033538	0.061163 +/- 0.000667	89.209% +/- 0.086
`IQ5_KS_R4`	uploaded	139.04 GiB	4.608804 +/- 0.033738	0.046126 +/- 0.000597	90.056% +/- 0.083
`IQ5_KS`	uploaded	139.04 GiB	4.608804 +/- 0.033738	0.046126 +/- 0.000597	90.056% +/- 0.083
`Q5_K_S`	uploaded	145.10 GiB	4.598543 +/- 0.033604	0.048429 +/- 0.000630	89.865% +/- 0.083
`IQ5_K_R4`	uploaded	145.10 GiB	4.624008 +/- 0.033904	0.041238 +/- 0.000541	90.446% +/- 0.081
`IQ5_K`	uploaded	145.10 GiB	4.624008 +/- 0.033904	0.041238 +/- 0.000541	90.446% +/- 0.081
`Q5_K_M`	uploaded	149.26 GiB	4.607405 +/- 0.033688	0.045827 +/- 0.000562	90.036% +/- 0.083
`IQ6_K`	uploaded	174.48 GiB	4.633778 +/- 0.033986	0.028084 +/- 0.000440	91.120% +/- 0.079
`Q6_K`	uploaded	172.85 GiB	4.647079 +/- 0.034139	0.029602 +/- 0.000429	90.977% +/- 0.079
`Q8_0`	uploaded	223.63 GiB	4.633481 +/- 0.033995	0.022906 +/- 0.000376	91.302% +/- 0.078
`BF16`	uploaded	420.71 GiB	4.683023 +/- 0.034506	baseline	baseline

Rows are ordered by effective bit-width. Queued rows with pending sizes are placed by quant family and expected BPW.

Imatrix and calibration corpus

The imatrix used for these quants is the 256-chunk public Q8_0 run:

laguna-m1-q8-public-v1-256-gatefix.imatrix
SHA256: 449427a1a4c5d2480d98e3fcccc3884bd3aafa325d937741a162adf84e7e7eed
Source model for imatrix collection: corrected Q8_0 GGUF of Laguna M.1
Chunks: 256
Tokens processed: 1,048,576
Diagnostic imatrix collection PPL: 2.6084 +/- 0.00786

The original imatrix was collected with llama-imatrix from Laguna-M.1-Q8_0-00001-of-00010.gguf using -c 4096, -ngl 999, --chunks 256, --no-warmup, and all available CPU threads. The derived gatefix imatrix is a mechanically augmented copy of that original 256-chunk file (c8a98474542e2ae7636d7ad0578552398eec3d769b6f9a2981f111a4ba06af12). Laguna's fused up/gate graph records the shared activation stream under the up-projection tensor name, so the original imatrix had the up-projection entries but not all matching gate-projection names. The fix clones:

.ffn_up.weight to .ffn_gate.weight
.ffn_up_exps.weight to .ffn_gate_exps.weight
.ffn_up_shexp.weight to .ffn_gate_shexp.weight

No numeric values were otherwise changed. Entry count went from 691 original entries to 828 derived entries, adding 137 cloned gate entries. This removes the shared-expert gate missing-weight warnings during quantization; the remaining missing imatrix entries are output.weight and token_embd.weight, which are explicitly kept at q6_K for these publication quants.

The calibration corpus is laguna-m1-imatrix-calibration-v1.txt:

Size: 6,526,884 bytes
Lines: 130,856
SHA256: 4d478cc0d10da862b0f70040b0c1d948fb88ddac83a5307059e61f02c206622f

The corpus was built by build_laguna_imatrix_corpus.py, with a companion manifest at laguna-m1-imatrix-calibration-v1.manifest.json. It combines:

A public baseline: ubergarm-imatrix-calibration-corpus-v02.txt (6fd2187f10ab1b742cf85eaf35cf9fa20863a557f68451d6535195774cf1fd0a, 1,699,017 bytes). That baseline is described as combining v5 rc calibration text with exllamav3 standard calibration data.
Local ik_llama.cpp source from the pre-merge laguna-m1-support branch, commit be7d53ceec0c823c07d540e21828d7d187b02d3b, with a clean worktree. The included source set covers the Laguna converter/runtime path, imatrix code, quantizer code, CUDA MMQ/MMVQ dispatch, common CLI/chat helpers, and IQK quantization code.
A deterministic Laguna-specific supplement: 1,200 generated blocks (12 topics x 10 languages/formats x 10 operations), 2,060,879 bytes, SHA256 9aa0b10f45e79d7a7bfc2373375eec1890b92c8c1f76a74d9fa4c1b0bc8aeb5c. The supplement focuses on Laguna M.1/XS.2 metadata, partial RoPE, SWA/global attention differences, MoE routing and deferred experts, GGUF tensor naming, CUDA inference, KV-cache quantization, speculative decoding, imatrix collection, and publication/reproducibility tasks.

For provenance, the builder also downloaded and hashed calibration_datav3.txt from bartowski and calibration_data_v5_rc.txt from Tristan Dampf/Kalomaze, but did not concatenate them separately because they are already represented through the ubergarm v02 baseline. The Poolside technical report text/PDF, private shell history, download logs, local machine notes, and the earlier ad hoc laguna-m1-code-calib.txt were deliberately excluded.

Compatibility notes

Q2_K, IQ2_M, IQ2_XS, IQ2_S, IQ3_S, Q4_K_M, IQ4_XS, Q5_K_M, Q6_K, and IQ1_S are intended as broad compatibility artifacts once a runner has Laguna GGUF support.
IQ1_S and IQ1_S_R4 are experimental very-low-bit artifacts for quality/size probing.
IQ2_K_R4, IQ3_K_R4, IQ4_KS_R4, IQ4_K_R4, IQ5_KS_R4, IQ5_K_R4, IQ5_KS, IQ5_K, and IQ6_K are ik_llama.cpp/Spark/Vector-oriented quants selected for direct CUDA MMQ fast paths in ik_llama.cpp.
The *_R4 quants are not intended as universal llama.cpp artifacts today; use them with ik_llama.cpp or another runner that explicitly supports those tensor types.

Metrics

The PPL, KL divergence, and same-top percentages in the table come from the shared 64-chunk validation harness against the BF16 GGUF baseline logits on a fixed slice of the public calibration corpus. The first completed rows were run on Vast, with the remaining smaller and larger rows continuing on Spark and Vector using the same corpus, BF16 KL base, and parser. They are intended as reproducibility and regression checks for these artifacts, not as a general benchmark of Laguna M.1. The imatrix collection PPL above is recorded only as imatrix provenance and is not comparable to these publication validation metrics.

Validation tries full GPU offload first and falls back to lower -ngl values if the quant is too large for full offload on the validation machine. The validation logs and results TSVs record the offload setting used where applicable.

Current smoke tests for completed rows produced coherent outputs on both smoke prompts: an iterative Python Fibonacci function and the arithmetic answer 17 + 25 = 42. All uploaded non-BF16 quant rows above have completed the same validation harness; BF16 is the reference row used for KL divergence.

Reproducibility

Quantization command shape:

bash

llama-quantize \
  --keep-split \
  --partial-requant \
  --imatrix laguna-m1-q8-public-v1-256-gatefix.imatrix \
  --output-tensor-type q6_K \
  --token-embedding-type q6_K \
  Laguna-M.1-BF16-00001-of-00010.gguf \
  Laguna-M.1-<QUANT>-imatrix-public-v1.gguf \
  <QUANT> \
  $(nproc)

Evaluation command shape: