Claude Sonnet 5

Jun 2026
Claude Sonnet 5
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$0.51per task?
$2 / $10per 1M in / outcache $0.20
70 tok/sfirst token in 1.6 s?
1Mcontext

Rankingat low effort?

Alternatives?

History

7 versions
204060Jul 25Jan 26Jul 26Release dateHumanity's Last Exam44.54.655.5
204060Jul 25Jan 26Jul 26Release dateHumanity's Last Exam44.54.655.5

Benchmarks

all categories
Chat & Knowledge
HealthBench Professional length-adjustedlab57.8
Coding
SciCode50.1#49
SWE-bench Pro (public)lab63.2
Agents & Tool Use

FAQ

How much does Claude Sonnet 5 cost?›

$2 per 1M input tokens and $10 per 1M output tokens; cached input $0.20 per 1M. A typical benchmark task costs about $0.51 at low effort.

Is Claude Sonnet 5 free to use?›

There is no free API; the cheapest paid price is $2 per 1M input tokens.

How good is Claude Sonnet 5, and what is it best at?›

#115 of 334 in Chat & Knowledge, #48 of 132 in Coding, #61 of 133 in Agents & Tool Use, #40 of 195 in Writing & Language, #36 of 124 in Vision & Documents. Strongest at: Science.

Is Claude Sonnet 5 better than Claude Sonnet 4.6?›

On Humanity's Last Exam, Claude Sonnet 5 scores 41.3 vs 33.6 — higher. It is 80% cheaper per task.

How can I use Claude Sonnet 5?›

Through the API of Amazon Bedrock, Anthropic, Azure, Claude Platform on AWS, DeepInfra and 1 more.

What is the context window of Claude Sonnet 5?›

1M tokens, with up to 128K output tokens.

When was Claude Sonnet 5 released? Is there a newer version?›

Released 2026-06-29. It has been superseded by Claude Sonnet 5.5.

Is Claude Sonnet 5 open source?›

No, Claude Sonnet 5 is a closed model available through an API. The closest open-weights option here is MiMo v2.6 Pro.

Can Claude Sonnet 5 read images?›

It accepts text and images, PDF files as input.

What is Claude Sonnet 5?›

Claude Sonnet 5 is a closed language model from Anthropic, released Jun 2026, the successor to Claude Sonnet 4.6.

What are the best alternatives to Claude Sonnet 5?›

GPT-6.1 Sol (cheaper), GPT-5.6 Luna (better), MiMo v2.6 Pro (open weights).