Model comparison

Claude 3 Sonnet vs Inkling

Inkling is the stronger model overall, scoring 44.1 to 29.0 on the Noometry Index.

Last verified . 22 shared benchmarks.

Claude 3 Sonnet Anthropic

29.0

Rank #319 Confirmed

Inkling Thinking Machines Lab

44.1

Rank #80 Confirmed

Summary

  • They share 22 benchmarks with published results for both. Claude 3 Sonnet scores higher in 0 categories and Inkling in 8 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Inkling leads 55.1 to 21.1.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 2.5% for Claude 3 Sonnet and 88.9% for Inkling.
  • Inkling has downloadable open weights; the other is API-only.

Side by side

Claude 3 Sonnet and Inkling specifications
Claude 3 SonnetInkling
ProviderAnthropicThinking Machines Lab
Noometry Index29.044.1
Released2024-02-292026-07-15
WeightsProprietaryOpen
Context window—66K
Max output—66K
Input $ / M tokens—$1.87
Output $ / M tokens—$4.68
Results tracked3041

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Category by category

Coding Inkling leads

Claude 3 Sonnet: 29.6 (#302), Inkling: 34.5 (#234)

Coding benchmarks
BenchmarkClaude 3 SonnetInkling
WeirdML10.2%32.3%
LMArena Coding12231464
FrontierCode—14%
LMArena WebDev—1413
FrontierSWE—4.1%
SciCode—47%
BigCodeBench Instruct42.7%—
BigCodeBench Complete53.8%—
ALE-Bench—946
HumanEval+64%—
MBPP+69.3%—

Agentic & Tool Use Not comparable

Claude 3 Sonnet: —, Inkling: 29.6 (#85)

Agentic & Tool Use benchmarks
BenchmarkClaude 3 SonnetInkling
APEX-Agents—33.8%
τ²-bench Banking—25%

Reasoning Inkling leads

Claude 3 Sonnet: 20.5 (#237), Inkling: 40.4 (#56)

Reasoning benchmarks
BenchmarkClaude 3 SonnetInkling
LMArena Hard Prompts11971451
DTBench53.6%87.5%
Epoch Capabilities Index120.7148.54
ARC-AGI-2—36.5%
SimpleBench—50%
ARC-AGI-1—79.5%
CritPt—5.4%
Chess Puzzles—21%
LMCA—37.6%
WinoGrande75.1%—

Math Inkling leads

Claude 3 Sonnet: 10.7 (#310), Inkling: 31.3 (#225)

Math benchmarks
BenchmarkClaude 3 SonnetInkling
OTIS Mock AIME 2024-20252.5%88.9%
LMArena Math12131479
FrontierMath (Tiers 1-3)—33.3%
FrontierMath Tier 4—4.9%
ProofBench—0%
MATH Level 518.2%—

Knowledge Inkling leads

Claude 3 Sonnet: 21.1 (#276), Inkling: 55.1 (#49)

Knowledge benchmarks
BenchmarkClaude 3 SonnetInkling
GPQA Diamond40.6%88.3%
LMArena Expert11731465
SimpleQA Verified—40.3%
MMLU75.9%—

Multimodal Not comparable

Claude 3 Sonnet: 25.2 (#125), Inkling: —

Multimodal benchmarks
BenchmarkClaude 3 SonnetInkling
LMArena Vision984—

Multilingual Inkling leads

Claude 3 Sonnet: 37.8 (#234), Inkling: 54.0 (#52)

Multilingual benchmarks
BenchmarkClaude 3 SonnetInkling
LMArena Non-English12051434
LMArena Chinese11891490
LMArena French12291458
LMArena German12041446
LMArena Japanese11311429
LMArena Korean11281404
LMArena Russian12271429
LMArena Spanish12041448

Instruction Following Inkling leads

Claude 3 Sonnet: 62.8 (#235), Inkling: 75.1 (#71)

Instruction Following benchmarks
BenchmarkClaude 3 SonnetInkling
LMArena Instruction Following11991426

Long Context Inkling leads

Claude 3 Sonnet: 36.7 (#228), Inkling: 43.8 (#86)

Long Context benchmarks
BenchmarkClaude 3 SonnetInkling
LMArena Longer Query12111434

Writing & Preference Inkling leads

Claude 3 Sonnet: 42.1 (#238), Inkling: 65.2 (#51)

Writing & Preference benchmarks
BenchmarkClaude 3 SonnetInkling
LMArena Text12181441
LMArena Creative Writing11861387
LMArena Multi-Turn12271436
EQ-Bench Creative Writing—1611
EQ-Bench 4—1226

Frequently asked questions

Is Claude 3 Sonnet better than Inkling?

Inkling is the stronger model overall, scoring 44.1 to 29.0 on the Noometry Index.

Is Claude 3 Sonnet or Inkling better for coding?

Inkling scores higher on coding benchmarks: 34.5 versus 29.6 in the Noometry coding category.

How many benchmarks do Claude 3 Sonnet and Inkling share?

22 benchmarks have published results for both models. Claude 3 Sonnet has 30 scored results on Noometry and Inkling has 41.

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