Claude Sonnet 5

Jun 2026
Claude Sonnet 5
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$1.00per task?
$2 / $10per 1M in / outcache $0.20
66 tok/sfirst token in 1.7 s?
1Mcontext

Rankingat medium effort?

Alternatives?

History

7 versions
2030405060Jul 25Jan 26Jul 26Release dateAA Intelligence Index 4.3.244.54.655.5
2030405060Jul 25Jan 26Jul 26Release dateAA Intelligence Index 4.3.244.54.655.5

Benchmarks

all categories
Chat & Knowledge
HealthBench Professional length-adjustedlab57.8
Coding
SciCode51.6#42
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 $1.00 at medium 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?›

#80 of 334 in Chat & Knowledge, #48 of 132 in Coding, #50 of 133 in Agents & Tool Use, #40 of 195 in Writing & Language, #36 of 124 in Vision & Documents. Strongest at: Reasoning, Science.

Is Claude Sonnet 5 better than Claude Sonnet 4.6?›

On AA Intelligence Index 4.3.2, Claude Sonnet 5 scores 38.2 vs 30.1 — higher. It is 60% 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 It has been superseded by Claude Sonnet 5.5.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-6 Luna (better), MiMo v2.6 Pro (open weights).