Model comparison

Claude Sonnet 5 vs Laguna M.1

Claude Sonnet 5 is the stronger model overall, scoring 54.6 to 32.5 on the Noometry Index.

Last verified . 3 shared benchmarks.

Claude Sonnet 5 Anthropic

54.6

Rank #29 Confirmed

Laguna M.1 Poolside

32.5

Rank #256 Reported

Summary

  • They share 3 benchmarks with published results for both. Claude Sonnet 5 scores higher in 3 categories and Laguna M.1 in 0 categories; 3 gaps are clear of the uncertainty.
  • The widest gap is in math, where Claude Sonnet 5 leads 66.2 to 21.1.
  • The biggest single-benchmark swing is ProofBench: 77% for Claude Sonnet 5 and 0% for Laguna M.1.
  • Claude Sonnet 5 accepts more context: 1M tokens versus 262K.
  • Laguna M.1 has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 5 and Laguna M.1 specifications
Claude Sonnet 5Laguna M.1
ProviderAnthropicPoolside
Noometry Index54.632.5
Released2026-06-292026-04-28
WeightsProprietaryOpen
Context window1M262K
Max output128K33K
Input $ / M tokens$2—
Output $ / M tokens$10—
Results tracked513

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Category by category

Coding Claude Sonnet 5 leads

Claude Sonnet 5: 55.5 (#26), Laguna M.1: 36.6 (#204)

Coding benchmarks
BenchmarkClaude Sonnet 5Laguna M.1
LMArena WebDev15411349
DeepSWE53.8%—
FrontierCode42.7%—
CursorBench34.1%—
SciCode54.3%—
GSO37.3%—
WeirdML68.8%—
LMArena Coding1483—
ALE-Bench1,463—

Agentic & Tool Use Not comparable

Claude Sonnet 5: 42.8 (#18), Laguna M.1: —

Agentic & Tool Use benchmarks
BenchmarkClaude Sonnet 5Laguna M.1
APEX-Agents54.5%—
GBAEval65.3%—
LMArena Search1194—
Vending-Bench 26,378—

Reasoning Claude Sonnet 5 leads

Claude Sonnet 5: 49.1 (#39), Laguna M.1: 23.1 (#184)

Reasoning benchmarks
BenchmarkClaude Sonnet 5Laguna M.1
Surface Evolver Bench60%15.6%
SimpleBench60.6%—
NYT Connections (extended)75.1%—
CritPt16.9%—
Chess Puzzles35%—
LMArena Hard Prompts1461—
Mystery Game Puzzles35%—
DTBench92.5%—
LMCA50%—
Bench to the Future 30.14—
Epoch Capabilities Index156.21—
ForecastBench61.1—

Math Claude Sonnet 5 leads

Claude Sonnet 5: 66.2 (#27), Laguna M.1: 21.1 (#283)

Math benchmarks
BenchmarkClaude Sonnet 5Laguna M.1
ProofBench77%0%
FrontierMath (Tiers 1-3)65.6%—
FrontierMath Tier 429.3%—
OTIS Mock AIME 2024-202594.7%—
LMArena Math1467—

Knowledge Not comparable

Claude Sonnet 5: 55.6 (#47), Laguna M.1: —

Knowledge benchmarks
BenchmarkClaude Sonnet 5Laguna M.1
GPQA Diamond90.5%—
SimpleQA Verified33.7%—
LMArena Expert1490—

Multimodal Not comparable

Claude Sonnet 5: 42.4 (#31), Laguna M.1: —

Multimodal benchmarks
BenchmarkClaude Sonnet 5Laguna M.1
LMArena Vision1274—
Blueprint-Bench 224.9%—
LMArena Document1466—

Multilingual Not comparable

Claude Sonnet 5: 53.8 (#55), Laguna M.1: —

Multilingual benchmarks
BenchmarkClaude Sonnet 5Laguna M.1
LMArena Non-English1431—
LMArena Chinese1477—
LMArena French1460—
LMArena German1440—
LMArena Japanese1422—
LMArena Korean1411—
LMArena Russian1451—
LMArena Spanish1437—

Instruction Following Not comparable

Claude Sonnet 5: 76.3 (#41), Laguna M.1: —

Instruction Following benchmarks
BenchmarkClaude Sonnet 5Laguna M.1
LMArena Instruction Following1452—

Long Context Not comparable

Claude Sonnet 5: 44.8 (#55), Laguna M.1: —

Long Context benchmarks
BenchmarkClaude Sonnet 5Laguna M.1
LMArena Longer Query1463—

Writing & Preference Not comparable

Claude Sonnet 5: 69.2 (#25), Laguna M.1: —

Writing & Preference benchmarks
BenchmarkClaude Sonnet 5Laguna M.1
LMArena Text1442—
LMArena Creative Writing1416—
EQ-Bench Creative Writing1794—
EQ-Bench 41236—
LMArena Multi-Turn1454—

Frequently asked questions

Is Claude Sonnet 5 better than Laguna M.1?

Claude Sonnet 5 is the stronger model overall, scoring 54.6 to 32.5 on the Noometry Index.

Is Claude Sonnet 5 or Laguna M.1 better for coding?

Claude Sonnet 5 scores higher on coding benchmarks: 55.5 versus 36.6 in the Noometry coding category.

Which has the bigger context window?

Claude Sonnet 5 does, with 1M tokens against 262K.

How many benchmarks do Claude Sonnet 5 and Laguna M.1 share?

3 benchmarks have published results for both models. Claude Sonnet 5 has 51 scored results on Noometry and Laguna M.1 has 3.

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