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PoolsideOpen weightsReasoning modelCompare with another model

Laguna M.1

Laguna M.1 is a Poolside open-weights reasoning model, released 28 Apr 2026. Its best configuration ranks #735 of 785 on the BenchLeader Index at 37.3 ±9.6, in the lower half. The ± is the point: 313 other configurations score within that range, so they and this one cannot be told apart on quality alone — price and speed are what separate them. It scores highest in coding (43) and lowest in agents & tools (25). Last measured 23 Oct 2026.

Blended price
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Output speed
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First answer
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Context
262k
Full answer
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Cost per run
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Released
28 Apr 2026
How it scores by categoryDashed line = average model (50). One step of 15 = one standard deviation.
  1. Overall index37
  2. Coding43
  3. Agents & tools25
  4. Maths30
  5. Knowledge32

How its index has moved

9 Sept 2026 to 25 Oct 2026
283847

The index is recomputed from scratch every day, so a line moves when a new benchmark result lands, when a publisher revises a score, or when the models it is normalised against change. Early movement usually means the score is still settling.

Benchmark results

See all LLM benchmarks. One column per reasoning effort. Rank is among every configuration of every model on that benchmark. Hover a score for the run it came from.

Reasoning

Benchmarknot statedSourceTrend
GPQA Diamond (Vals)not in index27.0%#130Vals AI

Coding

Benchmarknot statedSourceTrend
Arena WebDev1349#110Arena (LMArena)
LiveCodeBench68.1%#90Vals AI
SWE-bench (Vals)not in index57.6%#77Vals AI
ProgramBenchnot in index0.0%#32Vals AI
Vibe Code Bench v1.1not in index11.0%#98Vals AI
Surface Evolver Benchnot in index15.6%#28Epoch AI Benchmarking Hub

Agents & tools

Benchmarknot statedSourceTrend
Terminal-Bench 2.1 (Vals)34.1%#69Vals AI
Finance Agent v2not in index25.0%#73Vals AI
Harvey's Legal Agent Benchmark v1not in index0.0%#61Vals AI
Legal Research Benchnot in index2.4%#79Vals AI
Terminal-Bench 2.0 (Vals)not in index31.5%#42Vals AI

Maths

Benchmarknot statedSourceTrend
ProofBench0.0%#77Vals AI

Knowledge

Benchmarknot statedSourceTrend
MMLU-Pro68.8%#119Vals AI
LegalBench75.1%#111Vals AI
CorpFin58.2%#83Vals AI
TaxEval1.6%#138Vals AI
MedCodenot in index23.1%#101Vals AI
MedScribenot in index65.9%#97Vals AI
Public Benefits Bench v1.1not in index43.8%#47Vals AI

More from Poolside

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See also

Questions people ask

What are Laguna M.1's benchmark scores?
As of 25 Oct 2026, Laguna M.1 scores 37.3 ±9.6 on the BenchLeader Index, strongest in coding (43) and weakest in agents & tools (25). That rests on 8 independent benchmark results, and every score on this page links to its publisher.
How does Laguna M.1 rank?
Laguna M.1 is #735 of 785 ranked configurations on 25 Oct 2026. 313 other configurations score within its margin, so the exact position matters less than the band. The leader is Claude Opus 5.5 (max effort) at 72.6.
When was Laguna M.1 released?
Poolside released Laguna M.1 on 28 Apr 2026.

Data as of 25 Oct 2026. Compare with another model.

Cite as: BenchLeader, “Laguna M.1: benchmarks, pricing, speed and rank”, data as of 25 Oct 2026, https://www.benchleader.com/models/laguna-m-1.