Noometry

Model comparison

Claude Opus 4.7 vs Claude Sonnet 4

Claude Opus 4.7 is the stronger model overall, scoring 58.4 to 40.6 on the Noometry Index. Claude Sonnet 4 costs 1.7× less per token, which makes it the better buy when Claude Opus 4.7's lead doesn't matter for your workload.

Last verified . 38 shared benchmarks.

Claude Opus 4.7 Anthropic

58.4

Rank #17 Confirmed

Claude Sonnet 4 Anthropic

40.6

Rank #139 Confirmed

Summary

  • They share 38 benchmarks with published results for both. Claude Opus 4.7 scores higher in 10 categories and Claude Sonnet 4 in 0 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Claude Opus 4.7 leads 53.7 to 23.0.
  • The biggest single-benchmark swing is ARC-AGI-2: 75.8% for Claude Opus 4.7 and 5.9% for Claude Sonnet 4.
  • Claude Sonnet 4 is cheaper at $3 / $15 per million input/output tokens, against $5 / $25 for Claude Opus 4.7.
  • Claude Opus 4.7 accepts more context: 1M tokens versus 200K.

Side by side

Claude Opus 4.7Claude Sonnet 4
ProviderAnthropicAnthropic
Noometry Index58.440.6
Released2026-04-142025-05-22
WeightsProprietaryProprietary
Context window1M200K
Max output128K64K
Input $ / M tokens$5$3
Output $ / M tokens$25$15
Results tracked6658

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Category by category

Coding Claude Opus 4.7 leads

Claude Opus 4.7: 59.9 (#10), Claude Sonnet 4: 44.0 (#70)

BenchmarkClaude Opus 4.7Claude Sonnet 4
SciCode54.5%40%
GSO44.1%4.9%
WeirdML76.4%46.1%
LMArena Coding15191414
ALE-Bench1,323655.35
SWE-bench Verified83.5%—
FrontierCode38.5%—
SWE-bench Verified (bash only)—64.9%
Aider Polyglot—61.3%
LMArena WebDev1557—
MirrorCode31.1%—

Agentic & Tool Use Claude Opus 4.7 leads

Claude Opus 4.7: 47.9 (#8), Claude Sonnet 4: 38.3 (#29)

BenchmarkClaude Opus 4.7Claude Sonnet 4
Terminal-Bench80.2%—
APEX-Agents49.2%—
OSWorld 2.018.2%—
TheAgentCompany—33.1%
τ²-bench Banking40.2%—
Cybench—35%
DeepResearch Bench—46.6%
OSWorld—43.9%
PostTrainBench28.6%—
ExploitBench26.5%—
GBAEval43.8%—
GDP.pdf21%—
LMArena Search1233—
METR Time Horizons—62%
Vending-Bench 210,937—

Reasoning Claude Opus 4.7 leads

Claude Opus 4.7: 53.7 (#24), Claude Sonnet 4: 23.0 (#169)

BenchmarkClaude Opus 4.7Claude Sonnet 4
ARC-AGI-275.8%5.9%
SimpleBench61.7%45.5%
Kagi LLM Benchmark80.7%73%
ARC-AGI-193.5%40%
CritPt12%0.3%
LMArena Hard Prompts15071372
DTBench94.7%77.1%
LMCA52.2%29%
Epoch Capabilities Index156.39141.69
ForecastBench60.360.2
NYT Connections (extended)39%—
Chess Puzzles30%—
EnigmaEval—3.1%
Thematic Generalization72.8%—
EBR-Bench19%—
Mystery Game Puzzles28%—

Math Claude Opus 4.7 leads

Claude Opus 4.7: 66.5 (#20), Claude Sonnet 4: 41.5 (#71)

BenchmarkClaude Opus 4.7Claude Sonnet 4
OTIS Mock AIME 2024-202597.8%71.1%
LMArena Math14991375
FrontierMath (Feb 2025 set)43.8%4.1%
FrontierMath Tier 4 (v1)22.9%0%
FrontierMath (Tiers 1-3)70.2%—
FrontierMath Tier 431.7%—
MathArena Final-Answer Competitions73.6%—
ProofBench54%—
Omni-MATH—60.2%
MATH Level 5—84.4%

Knowledge Claude Opus 4.7 leads

Claude Opus 4.7: 62.6 (#20), Claude Sonnet 4: 41.6 (#99)

BenchmarkClaude Opus 4.7Claude Sonnet 4
GPQA Diamond90.2%79.2%
Humanity's Last Exam36.2%7.8%
Vectara Hallucination Rate12%10.3%
LMArena Expert15211371
SimpleQA Verified51.7%—
MMLU-Pro—84.3%
Confabulations—13.2%
GPQA (HELM)—70.6%

Multimodal Claude Opus 4.7 leads

Claude Opus 4.7: 41.5 (#29), Claude Sonnet 4: 25.6 (#116)

BenchmarkClaude Opus 4.7Claude Sonnet 4
LMArena Vision13171191
GeoBench—37%
VPCT—34%
Blueprint-Bench 224.5%—
Furniture Assembly33.3%—
LMArena Document1495—
MindCube—44.8%

Multilingual Claude Opus 4.7 leads

Claude Opus 4.7: 57.5 (#9), Claude Sonnet 4: 46.9 (#151)

BenchmarkClaude Opus 4.7Claude Sonnet 4
LMArena Non-English14811333
LMArena Chinese15301351
LMArena French15051364
LMArena German14941331
LMArena Japanese14721301
LMArena Korean14661293
LMArena Russian14941355
LMArena Spanish14971356

Instruction Following Claude Opus 4.7 leads

Claude Opus 4.7: 78.6 (#9), Claude Sonnet 4: 71.8 (#141)

BenchmarkClaude Opus 4.7Claude Sonnet 4
LMArena Instruction Following14981375
IFEval—84%

Long Context Claude Opus 4.7 leads

Claude Opus 4.7: 46.1 (#24), Claude Sonnet 4: 33.6 (#254)

BenchmarkClaude Opus 4.7Claude Sonnet 4
LMArena Longer Query15051398
Fiction.LiveBench—46.9%

Writing & Preference Claude Opus 4.7 leads

Claude Opus 4.7: 75.3 (#8), Claude Sonnet 4: 57.3 (#127)

BenchmarkClaude Opus 4.7Claude Sonnet 4
LMArena Text14911351
LMArena Creative Writing14861345
EQ-Bench Creative Writing19141483
LMArena Multi-Turn15061376
Short-Story Creative Writing—81.4%
WildBench—83.8%
EQ-Bench 41311—

Frequently asked questions

Is Claude Opus 4.7 better than Claude Sonnet 4?

Claude Opus 4.7 is the stronger model overall, scoring 58.4 to 40.6 on the Noometry Index. Claude Sonnet 4 costs 1.7× less per token, which makes it the better buy when Claude Opus 4.7's lead doesn't matter for your workload.

Which is cheaper, Claude Opus 4.7 or Claude Sonnet 4?

Claude Sonnet 4 is cheaper. It lists at $3 per million input tokens and $15 per million output tokens; Claude Opus 4.7 lists at $5 and $25.

Is Claude Opus 4.7 or Claude Sonnet 4 better for coding?

Claude Opus 4.7 scores higher on coding benchmarks: 59.9 versus 44.0 in the Noometry coding category.

Which has the bigger context window?

Claude Opus 4.7 does, with 1M tokens against 200K.

How many benchmarks do Claude Opus 4.7 and Claude Sonnet 4 share?

38 benchmarks have published results for both models. Claude Opus 4.7 has 66 scored results on Noometry and Claude Sonnet 4 has 58.

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