Noometry

Model comparison

Claude Sonnet 5.5 vs Llama 3-70B

Claude Sonnet 5.5 is the stronger model overall, scoring 60.5 to 28.5 on the Noometry Index.

Last verified . 2 shared benchmarks.

Claude Sonnet 5.5 Anthropic

60.5

Rank #10 Confirmed

Llama 3-70B Meta

28.5

Rank #317 Confirmed

Summary

  • They share 2 benchmarks with published results for both. Claude Sonnet 5.5 scores higher in 5 categories and Llama 3-70B in 0 categories; 5 gaps are clear of the uncertainty.
  • The widest gap is in math, where Claude Sonnet 5.5 leads 88.7 to 12.0.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 100% for Claude Sonnet 5.5 and 4.3% for Llama 3-70B.
  • Llama 3-70B has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 5.5Llama 3-70B
ProviderAnthropicMeta
Noometry Index60.528.5
Released2026-09-282024-04-18
WeightsProprietaryOpen
Context window1M—
Max output128K—
Input $ / M tokens$2—
Output $ / M tokens$10—
Results tracked1631

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Category by category

Coding Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 65.5 (#6), Llama 3-70B: 35.3 (#215)

BenchmarkClaude Sonnet 5.5Llama 3-70B
FrontierCode52.1%—
CursorBench55.5%—
LMArena WebDev1699—
FrontierSWE61.9%—
SciCode61%—
BigCodeBench Instruct—43.6%
LMArena Coding—1206
BigCodeBench Complete—54.5%
ALE-Bench1,819—
HumanEval+—72%
MBPP+—69%

Agentic & Tool Use Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 44.9 (#14), Llama 3-70B: 20.9 (#132)

BenchmarkClaude Sonnet 5.5Llama 3-70B
APEX-Agents75.5%—
Cybench—5%

Reasoning Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 52.4 (#29), Llama 3-70B: 17.4 (#284)

BenchmarkClaude Sonnet 5.5Llama 3-70B
Kagi LLM Benchmark—35.1%
CritPt31.4%—
LMArena Hard Prompts—1195
Mystery Game Puzzles65%—
DTBench—54.2%
Epoch Capabilities Index—122.91
ForecastBench—57.1
WinoGrande—83.5%

Math Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 88.7 (#4), Llama 3-70B: 12.0 (#299)

BenchmarkClaude Sonnet 5.5Llama 3-70B
OTIS Mock AIME 2024-2025100%4.3%
FrontierMath (Tiers 1-3)88.8%—
FrontierMath Tier 480.5%—
ProofBench100%—
LMArena Math—1218
MATH Level 5—22.6%

Knowledge Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 66.0 (#11), Llama 3-70B: 20.8 (#272)

BenchmarkClaude Sonnet 5.5Llama 3-70B
GPQA Diamond95.6%40.6%
SimpleQA Verified46.5%—
LMArena Expert—1149
MMLU—79.3%

Multimodal Not comparable

Claude Sonnet 5.5: 53.2 (#5), Llama 3-70B: —

BenchmarkClaude Sonnet 5.5Llama 3-70B
Furniture Assembly75%—

Multilingual Not comparable

Claude Sonnet 5.5: —, Llama 3-70B: 33.8 (#246)

BenchmarkClaude Sonnet 5.5Llama 3-70B
LMArena Non-English—1142
LMArena Chinese—1114
LMArena French—1231
LMArena German—1169
LMArena Japanese—1017
LMArena Korean—1017
LMArena Russian—1159
LMArena Spanish—1241

Instruction Following Not comparable

Claude Sonnet 5.5: —, Llama 3-70B: 62.8 (#233)

BenchmarkClaude Sonnet 5.5Llama 3-70B
LMArena Instruction Following—1194

Long Context Not comparable

Claude Sonnet 5.5: —, Llama 3-70B: 35.6 (#235)

BenchmarkClaude Sonnet 5.5Llama 3-70B
LMArena Longer Query—1174

Writing & Preference Not comparable

Claude Sonnet 5.5: —, Llama 3-70B: 43.0 (#225)

BenchmarkClaude Sonnet 5.5Llama 3-70B
LMArena Text—1221
LMArena Creative Writing—1210
LMArena Multi-Turn—1223

Frequently asked questions

Is Claude Sonnet 5.5 better than Llama 3-70B?

Claude Sonnet 5.5 is the stronger model overall, scoring 60.5 to 28.5 on the Noometry Index.

Is Claude Sonnet 5.5 or Llama 3-70B better for coding?

Claude Sonnet 5.5 scores higher on coding benchmarks: 65.5 versus 35.3 in the Noometry coding category.

How many benchmarks do Claude Sonnet 5.5 and Llama 3-70B share?

2 benchmarks have published results for both models. Claude Sonnet 5.5 has 16 scored results on Noometry and Llama 3-70B has 31.

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