Noometry

Model comparison

Claude Sonnet 5.5 vs Tulu 3 (Tülu 3) 70B

Claude Sonnet 5.5 is the stronger model overall, scoring 61.9 to 33.0 on the Noometry Index.

Last verified . 13 shared benchmarks.

Claude Sonnet 5.5 Anthropic

61.9

Rank #10 Confirmed

Tulu 3 (Tülu 3) 70B Allen Institute for AI (Ai2)

33.0

Rank #251 Confirmed

Summary

  • They share 13 benchmarks with published results for both. Claude Sonnet 5.5 scores higher in 8 categories and Tulu 3 (Tülu 3) 70B in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where Claude Sonnet 5.5 leads 87.9 to 14.2.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 100% for Claude Sonnet 5.5 and 4.4% for Tulu 3 (Tülu 3) 70B.
  • Tulu 3 (Tülu 3) 70B has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 5.5Tulu 3 (Tülu 3) 70B
ProviderAnthropicAllen Institute for AI (Ai2)
Noometry Index61.933.0
Released2026-09-282024-11-21
WeightsProprietaryOpen
Context window1M—
Max output128K—
Input $ / M tokens$2—
Output $ / M tokens$10—
Results tracked3214

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Category by category

Coding Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 67.3 (#6), Tulu 3 (Tülu 3) 70B: 36.0 (#214)

BenchmarkClaude Sonnet 5.5Tulu 3 (Tülu 3) 70B
LMArena Coding15131235
FrontierCode52.1%—
CursorBench55.5%—
LMArena WebDev1774—
FrontierSWE61.9%—
SciCode61%—
ALE-Bench1,819—

Agentic & Tool Use Not comparable

Claude Sonnet 5.5: 45.0 (#16), Tulu 3 (Tülu 3) 70B: —

BenchmarkClaude Sonnet 5.5Tulu 3 (Tülu 3) 70B
APEX-Agents75.5%—

Reasoning Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 54.0 (#28), Tulu 3 (Tülu 3) 70B: 23.9 (#169)

BenchmarkClaude Sonnet 5.5Tulu 3 (Tülu 3) 70B
LMArena Hard Prompts14951220
NYT Connections (extended)80.5%—
CritPt31.4%—
Mystery Game Puzzles65%—
Epoch Capabilities Index165.03—

Math Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 87.9 (#6), Tulu 3 (Tülu 3) 70B: 14.2 (#303)

BenchmarkClaude Sonnet 5.5Tulu 3 (Tülu 3) 70B
OTIS Mock AIME 2024-2025100%4.4%
LMArena Math15101242
FrontierMath (Tiers 1-3)88.8%—
FrontierMath Tier 480.5%—
ProofBench100%—
MATH Level 5—42.7%
FrontierMath Erdős2.9%—

Knowledge Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 66.0 (#12), Tulu 3 (Tülu 3) 70B: 25.0 (#264)

BenchmarkClaude Sonnet 5.5Tulu 3 (Tülu 3) 70B
GPQA Diamond95.6%46.3%
SimpleQA Verified46.5%—
LMArena Expert1540—

Multimodal Not comparable

Claude Sonnet 5.5: 51.5 (#6), Tulu 3 (Tülu 3) 70B: —

BenchmarkClaude Sonnet 5.5Tulu 3 (Tülu 3) 70B
LMArena Vision1289—
Furniture Assembly75%—

Multilingual Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 55.3 (#30), Tulu 3 (Tülu 3) 70B: 39.9 (#222)

BenchmarkClaude Sonnet 5.5Tulu 3 (Tülu 3) 70B
LMArena Non-English14521236
LMArena Chinese15221249
LMArena Russian14511246

Instruction Following Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 78.3 (#11), Tulu 3 (Tülu 3) 70B: 64.8 (#227)

BenchmarkClaude Sonnet 5.5Tulu 3 (Tülu 3) 70B
LMArena Instruction Following14951233

Long Context Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 45.9 (#28), Tulu 3 (Tülu 3) 70B: 37.1 (#222)

BenchmarkClaude Sonnet 5.5Tulu 3 (Tülu 3) 70B
LMArena Longer Query14981224

Writing & Preference Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 66.0 (#40), Tulu 3 (Tülu 3) 70B: 45.6 (#223)

BenchmarkClaude Sonnet 5.5Tulu 3 (Tülu 3) 70B
LMArena Text14711256
LMArena Creative Writing14651231
LMArena Multi-Turn14741252

Frequently asked questions

Is Claude Sonnet 5.5 better than Tulu 3 (Tülu 3) 70B?

Claude Sonnet 5.5 is the stronger model overall, scoring 61.9 to 33.0 on the Noometry Index.

Is Claude Sonnet 5.5 or Tulu 3 (Tülu 3) 70B better for coding?

Claude Sonnet 5.5 scores higher on coding benchmarks: 67.3 versus 36.0 in the Noometry coding category.

How many benchmarks do Claude Sonnet 5.5 and Tulu 3 (Tülu 3) 70B share?

13 benchmarks have published results for both models. Claude Sonnet 5.5 has 32 scored results on Noometry and Tulu 3 (Tülu 3) 70B has 14.

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