Skip to main content
BenchLM
Advertise

Model comparison

Claude Opus 4.7 vs Claude Sonnet 4.6

Data verified

Head-to-head evidence from 21 shared benchmark results across 7 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

71.63/100
Margin
6.6pts
← winning
65/100
1 category wins0 category wins

Verified leaderboard positions: Claude Opus 4.7 unranked; Claude Sonnet 4.6 #13

BenchAlign evidence: Claude Opus 4.7 supported; Claude Sonnet 4.6 supported. Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.

Evidence parity. Claude Opus 4.7 and Claude Sonnet 4.6 share 21 comparable benchmark results. 1 of 8 categories are comparable. 1 result is unique to Claude Opus 4.7; 13 to Claude Sonnet 4.6.

Updated July 15, 2026
Shared results
21
Claude Opus 4.7 only
1
Claude Sonnet 4.6 only
13
Comparable categories
1 / 8

Pick Claude Sonnet 4.6 if you want the stronger benchmark profile. Claude Opus 4.7 only becomes the better choice if mathematics is the priority or you need the larger 1M context window.

Confidence note. This is a partial-evidence comparison with 21 shared benchmark results across 7 evidence categories; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.

Why this result

Claude Sonnet 4.6 is clearly ahead on the provisional aggregate, 76 to 69. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Claude Opus 4.7 is also the more expensive model on tokens at $5.00 input / $25.00 output per 1M tokens, versus $3.00 input / $15.00 output per 1M tokens for Claude Sonnet 4.6. Claude Opus 4.7 gives you the larger context window at 1M, compared with 200K for Claude Sonnet 4.6.

Category breakdown

Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.

Category scores and score margins for Claude Opus 4.7 and Claude Sonnet 4.6
CategoryClaude Opus 4.7ΔClaude Sonnet 4.6
MathClaude Opus 4.738.6Margin← 12.2Claude Sonnet 4.626.4
AgenticClaude Opus 4.7Not measuredMarginNo overlapClaude Sonnet 4.665.2
CodingClaude Opus 4.7Not measuredMarginNo overlapClaude Sonnet 4.669.1
KnowledgeClaude Opus 4.7Not measuredMarginNo overlapClaude Sonnet 4.666.2
MultimodalClaude Opus 4.7Not measuredMarginNo overlapClaude Sonnet 4.677.4

Decisive benchmark drivers

The largest measured benchmark gaps in this matchup, with exact reported values.

More
A · Claude Opus 4.7B · Claude Sonnet 4.6

  1. FrontierMath v2 (Tier 4)

    Math
    Source ↗
    A 22.917%B 8.300%
    Winner: Claude Opus 4.7Δ 14.6
    FrontierMath v2 (Tier 4): Claude Opus 4.7 scored 22.917%; Claude Sonnet 4.6 scored 8.300%. Claude Opus 4.7 wins this benchmark.

  2. FrontierMath v2 (Tiers 1-3)

    Math
    Source ↗
    A 43.793%B 32.400%
    Winner: Claude Opus 4.7Δ 11.4
    FrontierMath v2 (Tiers 1-3): Claude Opus 4.7 scored 43.793%; Claude Sonnet 4.6 scored 32.400%. Claude Opus 4.7 wins this benchmark.

Operational comparison

Runtime and commercial metrics are compared only when both models have a complete sourced value.

MetricClaude Opus 4.7Claude Sonnet 4.6Comparison
Input / output priceUSD per 1M tokensClaude Opus 4.7$5 input / $25 outputClaude Sonnet 4.6$3 input / $15 outputClaude Sonnet 4.6 has the lower combined listed price.
Generation speedtokens per secondClaude Opus 4.7Not availableClaude Sonnet 4.644 tok/sA complete speed comparison is not available.
First-answer latencyseconds to first tokenClaude Opus 4.7Not availableClaude Sonnet 4.61.48 sA complete latency comparison is not available.
Context windowmaximum listed tokensClaude Opus 4.71MClaude Sonnet 4.6200KClaude Opus 4.7 lists the larger context window.

Benchmark Deep Dive

Agentic
BenchmarkClaude Opus 4.7Claude Sonnet 4.6Result
τ²-bench resultsSource 74%79.5%Claude Sonnet 4.6 leads
Gert LabsSource 65.59%62.92%Claude Opus 4.7 leads
ResearchClawBenchSource 20.7%—Not comparable
OSWorld 2.0Source 13.9%8.3%Claude Opus 4.7 leads
Terminal-Bench 2.0Source —59.1%Not comparable
OSWorld-VerifiedSource —72.1%Not comparable
Claw-EvalSource —67.8%Not comparable
CyberGymSource —65.2%Not comparable
JobBenchSource —36.9%Not comparable
Coding
BenchmarkClaude Opus 4.7Claude Sonnet 4.6Result
Vibe Code BenchSource 71.00%51.48%Claude Opus 4.7 leads
React Native EvalsSource 82.8%80.6%Claude Opus 4.7 leads
Terminal-Bench HardSource 54.5%46.2%Claude Opus 4.7 leads
AA-SciCodeSource 50.1%46.9%Claude Opus 4.7 leads
FrontierCodeSource 38.5%24.3%Claude Opus 4.7 leads
SWE-bench VerifiedSource —79.6%Not comparable
SWE-RebenchSource —60.7%Not comparable
cursorBench31Source —48.8%Not comparable
Reasoning
BenchmarkClaude Opus 4.7Claude Sonnet 4.6Result
AA-LCRSource 67.0%57.7%Claude Opus 4.7 leads
CritPtSource 5.1%0.9%Claude Opus 4.7 leads
Knowledge
BenchmarkClaude Opus 4.7Claude Sonnet 4.6Result
Artificial Analysis Intelligence IndexSource 42.7%35.9%Claude Opus 4.7 leads
AA-GPQA DiamondSource 88.5%79.9%Claude Opus 4.7 leads
AA-HLESource 31.2%13.2%Claude Opus 4.7 leads
AA-Omniscience IndexSource 14.2%-2.9%Claude Opus 4.7 leads
AA-Omniscience AccuracySource 43.5%38.0%Claude Opus 4.7 leads
AA-Omniscience Hallucination RateSource 51.9%65.9%Claude Opus 4.7 leads
GPQASource —89.9%Not comparable
SuperGPQASource —95%Not comparable
MMLU-ProSource —79.2%Not comparable
HLESource —49%Not comparable
MathClaude Opus 4.7 wins
BenchmarkClaude Opus 4.7Claude Sonnet 4.6Result
FrontierMath v2 (Tiers 1-3)Source 43.793%32.400%Claude Opus 4.7 leads
FrontierMath v2 (Tier 4)Source 22.917%8.300%Claude Opus 4.7 leads
Multimodal
BenchmarkClaude Opus 4.7Claude Sonnet 4.6Result
AA-MMMU-ProSource 76.4%70.6%Claude Opus 4.7 leads
Design Arena WebsiteSource 13281319Claude Opus 4.7 leads
CharXivSource —77.4%Not comparable
Inst. Following
BenchmarkClaude Opus 4.7Claude Sonnet 4.6Result
AA-IFBenchSource 43.6%41.2%Claude Opus 4.7 leads
Frequently Asked Questions (2)

Which is better, Claude Opus 4.7 or Claude Sonnet 4.6?

Claude Sonnet 4.6 is ahead on BenchLM's provisional leaderboard, 76 to 69. The biggest single separator in this matchup is FrontierMath v2 (Tier 4), where the scores are 22.917% and 8.300%.

Which is better for math, Claude Opus 4.7 or Claude Sonnet 4.6?

Claude Opus 4.7 has the edge for math in this comparison, averaging 38.6 versus 26.4. Inside this category, FrontierMath v2 (Tier 4) is the benchmark that creates the most daylight between them.

Related Comparisons

Explore More

Anthropic Compare Pricing Methodology Find Your Best LLM Overall Rankings
Last updated: July 15, 2026

The AI models change fast. We track them for you.

A weekly brief for engineers and researchers covering new models, ranking shifts, and pricing changes.

Free. No spam. Unsubscribe anytime.