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BenchLM
Data

Claude 3.7 Sonnet Thinking vs Claude Opus 4.5

Updated October 14, 2026. We do not rank this pair: at least one has no public score. Public scores include evidence status and uncertainty.

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Decision reading

At least one model is not scored in the current public ranking lane, so the page does not name an overall quality winner. 3 results are shared. Category rows resting on Estimated evidence or different benchmark sets are marked directional and do not name a winner.

Model A
Anthropic logo

Anthropic

—

Evidence status unavailable

90% interval unavailable

Model B
Anthropic logo

Anthropic

53.77/100

Supported · Public rank #72

90% interval 41.2–66.3

Shared results
3
Claude 3.7 Sonnet Thinking only
3
Claude Opus 4.5 only
58
Like-for-like categories
0 / 8
Supported: Claude Opus 4.5How the comparison works

Which one for your work

Recommendations appear only when a shared evidence basis or an explicit operating constraint supports the call. Secondary and unsupported use cases stay disclosed below the initial list.

No workload recommendation clears the current evidence threshold.

Use the matched evidence, workload costs, and sourced specifications below instead of treating a point score as a universal answer.

Show secondary and unsupported calls
  • Coding work

    Code generation, repair, and software-engineering tasks

    Not enough matched evidence

    Claude 3.7 Sonnet Thinking is not ranked on the public lane for coding, so no winner is named for coding.

    Confidence: limited
  • Agentic work

    Tool use, computer use, and multi-step task completion

    Not enough matched evidence

    Claude 3.7 Sonnet Thinking is not ranked on the public lane for agentic, so no winner is named for agentic.

    Confidence: limited
  • Long documents

    Prompts that approach the documented context limit

    No clear pick

    The documented context windows are equal.

    Confidence: documented
  • Chat turn cost

    1K fresh input + 500 output tokens

    Not enough matched evidence

    A complete comparable API-rate estimate is not available for both models.

    Confidence: listed-rates
  • Cache-heavy agent loop cost

    200K cached + 20K fresh input + 10K output tokens

    Not enough matched evidence

    The page does not recommend a cost winner because at least one model cannot fit the stated workload in one request. Claude 3.7 Sonnet Thinking does not fit this workload in one request. Claude Opus 4.5 does not fit this workload in one request. Claude Opus 4.5 has no published cached-input rate, so cached tokens use its listed input rate. Claude 3.7 Sonnet Thinking has no comparable published API token rate.

    Confidence: rate-fallback
  • Repository review cost

    50K fresh input + 3K output tokens

    Not enough matched evidence

    A complete comparable API-rate estimate is not available for both models.

    Confidence: listed-rates

Which one for a specific job

Choose a job from the LLM Selector's task catalog to see the category row it rests on, under the same basis rules as the table below. A directional row stays directional; choosing a job never creates a winner.

The same task catalog as the LLM Selector. Each job names the evidence surface it rests on; nothing here adds a new score.

—Claude 3.7 Sonnet Thinking40.7Claude Opus 4.5

Not comparable · BenchAlign v5.8

The coding row is not comparable on the public lane: at least one model is not measured or not ranked there.

Coding scores combine specific tasks and setups. Match the editor, harness, and effort to your workflow.

Same basis rules as the category table below

What is actually comparable

Shared results can support a head-to-head reading. Results present for only one model describe coverage, not superiority.

Shape of the matched evidence

Only shared public evidence is shown. Sparse evidence stays a ruled list rather than being closed into a radar shape.

Too few matched category axes support a radar. The ruled list below shows only shared benchmark results; positions use each benchmark’s normalized display scale when available.

Bars run 0–100 on each benchmark’s normalized display scale

Category results, on a stated basis

Each row shows the public-lane category score for both models: the BenchAlign v5.8 lane for agentic, coding, and knowledge, and the weighted public rows elsewhere, with the same rank each model page reports. A row is like-for-like only when both scores rest on Supported evidence or the same weighted set. Directional and not-comparable rows remain visible, but they never receive a winner.

Agentic

Not comparable
Claude 3.7 Sonnet Thinking
Not ranked
Claude Opus 4.5
31.2
Estimated · #87/124
Basis
BenchAlign v5.8 lane · 0 vs 15 public rows
Reading
Not comparable

Coding

Not comparable
Claude 3.7 Sonnet Thinking
Not ranked
Claude Opus 4.5
40.7
Estimated · #62/149
Basis
BenchAlign v5.8 lane · 0 vs 6 public rows
Reading
Not comparable

Reasoning

Not comparable
Claude 3.7 Sonnet Thinking
Not ranked
Claude Opus 4.5
78.3
Unranked · 4 rankable rows
Basis
Provisional lane · 0 vs 1 weighted rows
Reading
Not comparable

Multimodal

Not comparable
Claude 3.7 Sonnet Thinking
Not ranked
Claude Opus 4.5
48.6
#49/54
Basis
Provisional lane · 0 vs 2 weighted rows
Reading
Not comparable

Knowledge

Not comparable
Claude 3.7 Sonnet Thinking
Not ranked
Claude Opus 4.5
51.1
Estimated · #74/181
Basis
BenchAlign v5.8 lane · 2 vs 6 public rows
Reading
Not comparable

Multilingual

Not comparable
Claude 3.7 Sonnet Thinking
Not ranked
Claude Opus 4.5
96.5
#2/17
Basis
Provisional lane · 0 vs 1 weighted rows
Reading
Not comparable

Instruction following

Not comparable
Claude 3.7 Sonnet Thinking
Not ranked
Claude Opus 4.5
31.9
#116/128
Basis
Provisional lane · 0 vs 1 weighted rows
Reading
Not comparable

Math

Not comparable
Claude 3.7 Sonnet Thinking
Not ranked
Claude Opus 4.5
61.3
#9/12
Basis
Provisional lane · 0 vs 4 weighted rows
Reading
Not comparable

Ranks count the models scored in each category’s lane, so the agentic, coding, and knowledge denominators (BenchAlign v5.8) differ from the provisional-lane categories. Unranked scores sit on the provisional lane’s scale but never name a winner. Like-for-like rows within 0.5 points read as a practical tie.

Bars run 0–100Methodology

What each workload costs

Three fixed token mixes turn per-token rates into comparable decisions. Each scenario states context fit and whether cached input had to fall back to the published list-input rate.

Chat turn

1K fresh input + 500 output tokens

Claude 3.7 Sonnet Thinking
API rate not published
Fits in one request
Claude Opus 4.5
$0.0175
Fits in one request

Claude 3.7 Sonnet Thinking has no comparable published API token rate.

Repository review

50K fresh input + 3K output tokens

Claude 3.7 Sonnet Thinking
API rate not published
Fits in one request
Claude Opus 4.5
$0.325
Fits in one request

Claude 3.7 Sonnet Thinking has no comparable published API token rate.

Cache-heavy agent loop

200K cached + 20K fresh input + 10K output tokens

Claude 3.7 Sonnet Thinking
API rate not published
Does not fit in one request
Cached-input rate unavailable
Claude Opus 4.5
$1.35
Does not fit in one request
Cached input priced at the published list-input rate

Claude 3.7 Sonnet Thinking does not fit this workload in one request. Claude Opus 4.5 does not fit this workload in one request. Claude Opus 4.5 has no published cached-input rate, so cached tokens use its listed input rate. Claude 3.7 Sonnet Thinking has no comparable published API token rate.

Cached input falls back to the list input rate only where a cached rate is unpublished

Specification differences

Sourced differences are shown directly. Missing facts stay explicit instead of being inferred from a model name or family.

Context window

Maximum documented context; output-token limits may be lower.

Claude 3.7 Sonnet Thinking

200K

Claude Opus 4.5

200K

API model ID

Claude 3.7 Sonnet Thinking

Not sourced

Claude Opus 4.5

Not sourced

Cached-input rate

A missing cached-input rate falls back to the listed input rate only in the stated workload estimate.

Claude 3.7 Sonnet Thinking

No comparable hosted API rate

Claude Opus 4.5

Not published

Documented inputs

Claude 3.7 Sonnet Thinking

Not sourced

Claude Opus 4.5

Not sourced

Documented outputs

Claude 3.7 Sonnet Thinking

Not sourced

Claude Opus 4.5

Not sourced

Provider availability

Claude 3.7 Sonnet Thinking

Not sourced

Claude Opus 4.5

Not sourced

Reasoning profile

Claude 3.7 Sonnet Thinking

Reasoning

Claude Opus 4.5

Non-Reasoning

Weight access

Claude 3.7 Sonnet Thinking

Proprietary

Claude Opus 4.5

Proprietary

License

Claude 3.7 Sonnet Thinking

Proprietary

Claude Opus 4.5

Proprietary

Release date

Claude 3.7 Sonnet Thinking

2025-02-24

Claude Opus 4.5

2025-11-24

If you already use one of these models

Deployment change
Both entries list Anthropic as the provider. Confirm endpoint, model ID, limits, and feature support before switching.
Quality signal
At least one model is not scored in the current public ranking lane, so the page does not name an overall quality winner.
Workload cost
A complete comparable API-rate estimate is not available for both models.
Context tradeoff
Both models list 200K.
Run the same representative tasks against both endpoints before changing production traffic.

Questions

Which is better, Claude 3.7 Sonnet Thinking or Claude Opus 4.5?

At least one model is not scored in the current public ranking lane, so the page does not name an overall quality winner. The page therefore keeps the decision tied to the specific documented workload.

Which is better for coding, Claude 3.7 Sonnet Thinking or Claude Opus 4.5?

Claude 3.7 Sonnet Thinking is not ranked on the public lane for coding, so no winner is named for coding.

Which is better for agentic tasks, Claude 3.7 Sonnet Thinking or Claude Opus 4.5?

Claude 3.7 Sonnet Thinking is not ranked on the public lane for agentic tasks, so no winner is named for agentic tasks.

Which costs less, Claude 3.7 Sonnet Thinking or Claude Opus 4.5?

Both models do not have comparable published API token rates, so this page does not name a universal price winner.

Which has the larger context window, Claude 3.7 Sonnet Thinking or Claude Opus 4.5?

Both models list the same context window, 200K.

Benchmark evidence

The full public result ledger is available for audit without forcing a wide desktop table onto a phone.

Browse raw public benchmark evidence64 rows

Agentic

  • Terminal-Bench 2.0

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.559.3%
    Source

    Not directly comparable

  • OSWorld-Verified

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.566.3%
    Source

    Not directly comparable

  • OSWorld

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.566.3%
    Source

    Not directly comparable

  • Claw-Eval

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.559.6%
    Source

    Not directly comparable

  • QwenClawBench

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.552.3%
    Source

    Not directly comparable

  • τ³-bench results

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.570.2%
    Source

    Not directly comparable

  • VITA-Bench

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.523.3%
    Source

    Not directly comparable

  • DeepPlanning

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.526.4%
    Source

    Not directly comparable

  • Toolathlon

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.543.5%
    Source

    Not directly comparable

  • MCP Atlas

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.542.3%
    Source

    Not directly comparable

  • MCP-Tasks

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.571.8%
    Source

    Not directly comparable

  • WideResearch

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.576.4%
    Source

    Not directly comparable

  • CyberGym

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.550.6%
    Source

    Not directly comparable

  • Gert Labs

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.564.23%
    Source

    Not directly comparable

  • JobBench

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.532.3%
    Source

    Not directly comparable

Coding

  • SWE-bench Verified

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.580.9%
    Source

    Not directly comparable

  • LiveCodeBench v6

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.584.8%
    Source

    Not directly comparable

  • SWE-bench Pro

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.557.1%
    Source

    Not directly comparable

  • SWE Multilingual

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.577.5%
    Source

    Not directly comparable

  • NL2Repo

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.543.2%
    Source

    Not directly comparable

  • Terminal-Bench 2.0

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.559.3%
    Source

    Not directly comparable

Reasoning

  • LongBench v2

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.564.4%
    Source

    Not directly comparable

  • AI-Needle

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.574%
    Source

    Not directly comparable

Multimodal

  • MMMU

    Claude 3.7 Sonnet Thinking75.0%
    Source
    Claude Opus 4.580.7%
    Source

    Claude Opus 4.5 leads this result

  • MMMU-Pro

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.570.6%
    Source

    Not directly comparable

  • RealWorldQA

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.577.0%
    Source

    Not directly comparable

  • OmniDocBench 1.5

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.587.7%
    Source

    Not directly comparable

  • Video-MME (with subtitle)

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.577.6%
    Source

    Not directly comparable

  • Video-MME (w/o subtitle)

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.581.4%
    Source

    Not directly comparable

  • MathVision

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.574.3%
    Source

    Not directly comparable

  • We-Math

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.570.0%
    Source

    Not directly comparable

  • DynaMath

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.579.7%
    Source

    Not directly comparable

  • SimpleVQA

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.565.7%
    Source

    Not directly comparable

  • CharXiv

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.568.5%
    Source

    Not directly comparable

  • CountBench

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.590.6%
    Source

    Not directly comparable

  • AI2D_TEST

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.587.7%
    Source

    Not directly comparable

  • ERQA

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.546.8%
    Source

    Not directly comparable

  • VideoMMMU

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.584.4%
    Source

    Not directly comparable

  • MLVU (M-Avg)

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.581.7%
    Source

    Not directly comparable

  • ScreenSpot Pro

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.545.7%
    Source

    Not directly comparable

  • V*

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.567.0%
    Source

    Not directly comparable

Knowledge

  • GPQA

    Claude 3.7 Sonnet Thinking78.2%
    Source
    Claude Opus 4.587%
    Source

    Claude Opus 4.5 leads this result

  • MMMLU

    Claude 3.7 Sonnet Thinking86.1%
    Source
    Claude Opus 4.5—

    Not directly comparable

  • SuperGPQA

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.570.6%
    Source

    Not directly comparable

  • MMLU-Pro

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.589.5%
    Source

    Not directly comparable

  • MMLU-Redux

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.596.6%
    Source

    Not directly comparable

  • C-Eval

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.592.2%
    Source

    Not directly comparable

  • HLE

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.530.8%
    Source

    Not directly comparable

Multilingual

  • MMLU-ProX

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.585.7%
    Source

    Not directly comparable

  • NOVA-63

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.556.7%
    Source

    Not directly comparable

  • INCLUDE

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.586.2%
    Source

    Not directly comparable

  • PolyMath

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.579.0%
    Source

    Not directly comparable

  • MAXIFE

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.579.2%
    Source

    Not directly comparable

Instruction following

  • IFEval

    Claude 3.7 Sonnet Thinking93.2%
    Source
    Claude Opus 4.590.9%
    Source

    Claude 3.7 Sonnet Thinking leads this result

  • IFBench

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.558%
    Source

    Not directly comparable

Math

  • MATH-500

    Claude 3.7 Sonnet Thinking96.2%
    Source
    Claude Opus 4.5—

    Not directly comparable

  • AIME 2024

    Claude 3.7 Sonnet Thinking61.3%
    Source
    Claude Opus 4.5—

    Not directly comparable

  • AIME26

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.595.1%
    Source

    Not directly comparable

  • HMMT Feb 2025

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.592.9%
    Source

    Not directly comparable

  • HMMT Nov 2025

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.593.3%
    Source

    Not directly comparable

  • HMMT Feb 2026

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.585.3%
    Source

    Not directly comparable

  • MMAnswerBench

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.584.0%
    Source

    Not directly comparable

  • FrontierMath v2 (Tiers 1-3)

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.534.386%
    Source

    Not directly comparable

  • FrontierMath v2 (Tier 4)

    Claude 3.7 Sonnet Thinking—
    Claude Opus 4.54.878%
    Source

    Not directly comparable

64 public results · 3 shared

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Last updated October 14, 2026