Claude Sonnet 5

By Anthropic

Released: 2026-06-30

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Anthropic

Mid-Tier

Coding

Agents

Paid

New

Anthropic's mid-tier model launched at the end of June 2026, scoring 53 on the Artificial Analysis Intelligence Index with a 1M-token context window. List pricing is $3/$15 per million tokens, with introductory pricing of $2/$10 running until 31 August 2026.

Visit Claude Sonnet 5

AI-Powered

Leverages advanced AI technology to deliver cutting-edge capabilities and results.

Fast & Efficient

Optimized performance ensures quick results without compromising on quality.

Purpose-Built

Specifically designed for llms tasks and workflows.

Anthropic Model Timeline

1 Jul 2026Claude Fable 5

1M tokens context

30 Jun 2026

Claude Sonnet 5Current

1M tokens context

30 Jun 2026Claude Mythos 5

2 Jun 2026Anthropic Mythos 1

28 May 2026Claude Opus 4.8

Long-context context

13 Jan 2026Claude Cowork

24 Nov 2025Anthropic: Claude Opus 4.5

200k tokens context

15 Oct 2025Anthropic: Claude Haiku 4.5

200k tokens context

29 Sept 2025Anthropic: Claude Sonnet 4.5

1,000k tokens context

5 Aug 2025Anthropic: Claude Opus 4.1

200k tokens context

22 May 2025Anthropic: Claude Opus 4

200k tokens context

22 May 2025Anthropic: Claude Sonnet 4

1,000k tokens context

24 Feb 2025Anthropic: Claude 3.7 Sonnet (thinking)

200k tokens context

24 Feb 2025Anthropic: Claude 3.7 Sonnet

200k tokens context

4 Nov 2024Anthropic: Claude 3.5 Haiku

200k tokens context

22 Oct 2024Anthropic: Claude 3.5 Sonnet

200k tokens context

13 Mar 2024Anthropic: Claude 3 Haiku

200k tokens context

Specifications

pricing$3/$15 per 1M tokens ($2/$10 intro to 31 Aug 2026)

context Window1M tokens

AI Evaluation

4.5

Expert Rating

Strong price-to-capability balance in the Claude line, sitting below Opus 4.8 and Fable 5 but at a much lower cost per task.

Pros

Intelligence Index 53 at $1.53 per task
1M-token context
Introductory pricing until 31 Aug 2026

Cons

No published Coding Agent Index score yet
Less capable than Opus 4.8/Fable 5 on the hardest tasks

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