Noometry

Model comparison

Claude Opus 5.5 vs Laguna M.1

Claude Opus 5.5 is the stronger model overall, scoring 68.6 to 32.5 on the Noometry Index.

Last verified . 2 shared benchmarks.

Claude Opus 5.5 Anthropic

68.6

Rank #3 Confirmed

Laguna M.1 Poolside

32.5

Rank #256 Reported

Summary

  • They share 2 benchmarks with published results for both. Claude Opus 5.5 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 Opus 5.5 leads 91.8 to 21.1.
  • The biggest single-benchmark swing is ProofBench: 100% for Claude Opus 5.5 and 0% for Laguna M.1.
  • Claude Opus 5.5 accepts more context: 1M tokens versus 262K.
  • Laguna M.1 has downloadable open weights; the other is API-only.

Side by side

Claude Opus 5.5Laguna M.1
ProviderAnthropicPoolside
Noometry Index68.632.5
Released2026-09-222026-04-28
WeightsProprietaryOpen
Context window1M262K
Max output128K33K
Input $ / M tokens$4—
Output $ / M tokens$20—
Results tracked443

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Category by category

Coding Claude Opus 5.5 leads

Claude Opus 5.5: 71.9 (#3), Laguna M.1: 36.6 (#204)

BenchmarkClaude Opus 5.5Laguna M.1
LMArena WebDev18131349
FrontierCode54.6%—
CursorBench57.8%—
FrontierSWE62.3%—
SciCode66.9%—
LMArena Coding1547—
MirrorCode77.4%—
ALE-Bench2,147—

Agentic & Tool Use Not comparable

Claude Opus 5.5: 45.3 (#15), Laguna M.1: —

BenchmarkClaude Opus 5.5Laguna M.1
APEX-Agents73.5%—
GDP.pdf30.6%—
Vending-Bench 29,235—

Reasoning Claude Opus 5.5 leads

Claude Opus 5.5: 80.2 (#3), Laguna M.1: 23.1 (#184)

BenchmarkClaude Opus 5.5Laguna M.1
ARC-AGI-293.3%—
NYT Connections (extended)88.5%—
ARC-AGI-198.5%—
CritPt31.7%—
EBR-Bench71.4%—
LMArena Hard Prompts1535—
Mystery Game Puzzles71%—
DTBench98.9%—
LMCA68.2%—
Surface Evolver Bench—15.6%
Epoch Capabilities Index167.33—

Math Claude Opus 5.5 leads

Claude Opus 5.5: 91.8 (#3), Laguna M.1: 21.1 (#283)

BenchmarkClaude Opus 5.5Laguna M.1
ProofBench100%0%
FrontierMath (Tiers 1-3)91.2%—
FrontierMath Tier 495%—
OTIS Mock AIME 2024-2025100%—
LMArena Math1506—
FrontierMath Erdős2.9%—

Knowledge Not comparable

Claude Opus 5.5: 66.4 (#10), Laguna M.1: —

BenchmarkClaude Opus 5.5Laguna M.1
GPQA Diamond90.6%—
SimpleQA Verified72.2%—
LMArena Expert1547—

Multimodal Not comparable

Claude Opus 5.5: 57.8 (#1), Laguna M.1: —

BenchmarkClaude Opus 5.5Laguna M.1
LMArena Vision1321—
Blueprint-Bench 251.2%—
Furniture Assembly83.3%—

Multilingual Not comparable

Claude Opus 5.5: 59.1 (#2), Laguna M.1: —

BenchmarkClaude Opus 5.5Laguna M.1
LMArena Non-English1507—
LMArena Chinese1588—
LMArena French1514—
LMArena Russian1520—
LMArena Spanish1507—

Instruction Following Not comparable

Claude Opus 5.5: 80.0 (#3), Laguna M.1: —

BenchmarkClaude Opus 5.5Laguna M.1
LMArena Instruction Following1537—

Long Context Not comparable

Claude Opus 5.5: 47.1 (#19), Laguna M.1: —

BenchmarkClaude Opus 5.5Laguna M.1
LMArena Longer Query1532—

Writing & Preference Not comparable

Claude Opus 5.5: 78.2 (#3), Laguna M.1: —

BenchmarkClaude Opus 5.5Laguna M.1
LMArena Text1515—
LMArena Creative Writing1533—
EQ-Bench Creative Writing2050—
LMArena Multi-Turn1499—

Frequently asked questions

Is Claude Opus 5.5 better than Laguna M.1?

Claude Opus 5.5 is the stronger model overall, scoring 68.6 to 32.5 on the Noometry Index.

Is Claude Opus 5.5 or Laguna M.1 better for coding?

Claude Opus 5.5 scores higher on coding benchmarks: 71.9 versus 36.6 in the Noometry coding category.

Which has the bigger context window?

Claude Opus 5.5 does, with 1M tokens against 262K.

How many benchmarks do Claude Opus 5.5 and Laguna M.1 share?

2 benchmarks have published results for both models. Claude Opus 5.5 has 44 scored results on Noometry and Laguna M.1 has 3.

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