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Anthropic model product

Claude Sonnet 3.5

5 Sonnet is a powerful AI model.

Updated Aug 17, 2026. Default version: Claude 3.5 Sonnet

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LLMBoard Score31.4Claude 3.5 Sonnet
Coverage80%17 benchmark families
Context window200KTokens
Official input priceN/AOfficial price unavailable

On this page

  • Capability
  • Benchmarks
  • Arena
  • Pricing
  • Runtime
  • Specification
  • Versions
  • Compare
  • Similar models
  • About
  • FAQ

Claude Sonnet 3.5 Capability Profile

This profile uses the model's current scored version. Arena ratings and prices are shown separately.

Claude 3.5 Sonnet LLMBoard score breakdown

Claude Sonnet 3.5 Benchmark Results

Benchmark scores for Claude 3.5 Sonnet.

19 rows
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Benchmark
Score
Rank
Participants
Percentile
Evidence
Evaluated
BenchmarkAI2DScore94.7%Rank01Participants33Percentile100.0%EvidenceCEvaluatedAug 17, 2026
BenchmarkChartQAScore90.8%Rank01Participants26Percentile100.0%EvidenceCEvaluatedAug 17, 2026
BenchmarkOSWorld ExtendedScore22.0%Rank01Participants1Percentile100.0%EvidenceCEvaluatedAug 17, 2026
BenchmarkOSWorld Screenshot-onlyScore14.9%Rank01Participants1Percentile100.0%EvidenceCEvaluatedAug 17, 2026
BenchmarkBIG-Bench HardScore93.1%Rank02Participants21Percentile95.0%EvidenceCEvaluatedAug 17, 2026
BenchmarkDocVQAScore95.2%Rank03Participants28Percentile92.6%EvidenceCEvaluatedAug 17, 2026
BenchmarkDROPScore87.1%Rank03Participants30Percentile93.1%EvidenceCEvaluatedAug 17, 2026
BenchmarkHumanEvalScore93.7%Rank03Participants66Percentile96.9%EvidenceCEvaluatedAug 17, 2026
BenchmarkMGSMScore91.6%Rank04Participants31Percentile90.0%EvidenceCEvaluatedAug 17, 2026
BenchmarkGSM8kScore96.4%Rank07Participants48Percentile87.2%EvidenceCEvaluatedAug 17, 2026
BenchmarkMMLUScore90.4%Rank08Participants101Percentile93.0%EvidenceCEvaluatedAug 17, 2026
BenchmarkTAU-bench RetailScore69.2%Rank12Participants25Percentile54.2%EvidenceCEvaluatedAug 17, 2026
BenchmarkTAU-bench AirlineScore46.0%Rank16Participants23Percentile31.8%EvidenceCEvaluatedAug 17, 2026
BenchmarkMathVistaScore67.7%Rank20Participants39Percentile50.0%EvidenceCEvaluatedAug 17, 2026
BenchmarkMATHScore78.3%Rank21Participants71Percentile71.4%EvidenceCEvaluatedAug 17, 2026
BenchmarkMMMUScore68.3%Rank35Participants63Percentile45.2%EvidenceCEvaluatedAug 17, 2026
BenchmarkMMLU-ProScore77.6%Rank66Participants134Percentile51.1%EvidenceCEvaluatedAug 17, 2026
BenchmarkSWE-Bench VerifiedScore49.0%Rank96Participants111Percentile13.6%EvidenceCEvaluatedAug 17, 2026
BenchmarkGPQAScore67.2%Rank143Participants239Percentile40.3%EvidenceCEvaluatedAug 17, 2026

Claude Sonnet 3.5 Arena Results

Preference and agent-evaluation results for the default version.

4 rows
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Arena
Category
Rank
Rating / score
Votes
Observations
Result date
Arenavision style controlCategoryoverallRank90Rating / score1161.1Votes10,389ObservationsN/AResult dateAug 6, 2026
ArenavisionCategoryoverallRank104Rating / score1125.5Votes10,389ObservationsN/AResult dateAug 6, 2026
Arenatext style controlCategoryoverallRank171Rating / score1373.4Votes88,401ObservationsN/AResult dateAug 12, 2026
ArenatextCategoryoverallRank225Rating / score1297.7Votes88,401ObservationsN/AResult dateAug 12, 2026

Claude Sonnet 3.5 Pricing

Official vendor API pricing appears first, followed by individual provider offers.

Official API
N/A
Official provider
N/A
Lowest third-party
N/A
Tracked offerings
0
No provider prices

The default version has no current input or output token prices.

Official prices use only the vendor's configured official Provider and positive standard USD PAYG rates. Third-party offers remain explicitly labeled.

Claude Sonnet 3.5 Runtime Performance

Provider-specific output speed and catalog latency for Claude 3.5 Sonnet. Runtime does not affect the capability score.

3 rows
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Provider
Output Speed
Catalog Latency
Max Input
Max Output
Updated
ProviderBedrockOutput Speed101 tok/sCatalog Latency0.5 sMax Input200KMax Output200KUpdatedAug 17, 2026
ProviderAnthropicOutput Speed100 tok/sCatalog Latency0.5 sMax Input200KMax Output200KUpdatedAug 17, 2026
ProviderGoogleOutput Speed42 tok/sCatalog Latency0.4 sMax Input200KMax Output200KUpdatedAug 17, 2026

Output Speed is generated output tokens received per second. Catalog latency is reported separately from observed provider TTFT.

Claude Sonnet 3.5 Specifications

Technical details for the model's default version.

Version
Claude 3.5 Sonnet
Released
Oct 22, 2024
Knowledge cutoff
Apr 30, 2024
Parameters
N/A
Context window
200K
Max output
8.2K
Inputs
image, pdf, text
Outputs
text
Open weights
No
License
Proprietary

Claude Sonnet 3.5 Versions

Available versions of this model. The score column identifies the version used in the overall ranking.

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Version
Released
LLMBoard
Parameters
Context
Max output
Open weights
License
VersionClaude 3.5 SonnetReleasedOct 22, 2024LLMBoard31.4ParametersN/AContext200KMax output8.2KOpen weightsNoLicenseProprietary
VersionClaude 3.5 SonnetReleasedJun 21, 2024LLMBoardN/AParametersN/AContext200KMax output200KOpen weightsNoLicenseProprietary

Claude Sonnet 3.5 vs nearby models

Open a comparison with the three ranked models immediately above and below this model.

Claude Sonnet 3.5vsLongCat Flash LiteClaude Sonnet 3.5vsQwen3.5 4BClaude Sonnet 3.5vsNemotron Nano 9BClaude Sonnet 3.5vsGPT-4.1Claude Sonnet 3.5vsQwen3 VL 30B A3B ThinkingClaude Sonnet 3.5vsQwen3 32B

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What is Claude Sonnet 3.5?

Key information about Claude Sonnet 3.5 and its available data.

5 Sonnet is a powerful AI model. It excels in graduate-level reasoning, undergraduate-level knowledge, and coding proficiency, with improved understanding of nuance, humor, and complex instructions.

Data as of 2026-08-17.

FAQ

Common questions about Claude Sonnet 3.5.

When was Claude Sonnet 3.5 released?

Claude Sonnet 3.5's default version was released on Oct 22, 2024.

How much does Claude Sonnet 3.5 cost?

No official standard PAYG price is currently available for Claude Sonnet 3.5.

Who created Claude Sonnet 3.5?

Claude Sonnet 3.5 was created by Anthropic.

What is the context window for Claude Sonnet 3.5?

The default version has a 200K token context window.

Is Claude Sonnet 3.5 open weight?

No. The default version is not marked as having publicly available weights.

How many API providers offer Claude Sonnet 3.5?

No provider offering is currently linked to the default version.

What models should I compare Claude Sonnet 3.5 with?

Nearby ranked alternatives include LongCat Flash Lite, Qwen3.5 4B, Nemotron Nano 9B.