Anthropic changelog: August 2025

4 releases from to

Everything Anthropic shipped in August 2025, collected from official Anthropic sources. Each entry is dated and links to the page it came from.

August 2025 at a glance

August 2025 was Anthropic's busiest month of the 12 months to then: 4 releases, about 3.2× its monthly average of 1. That was 4 releases more than July 2025. Most were Product (3), followed by Model (1).

Releases

4

+4 vs July 2025

Rank of 12 months

1st

Average 1.3 a month

Most shipped

Product

3 releases

Notable Anthropic launches in August 2025

  • Model

    Claude Opus 4.1

    Claude Opus 4.1 is an upgrade to Claude Opus 4 on agentic tasks, real-world coding, and reasoning. It improves coding performance to 74.5% on SWE-bench Verified, enhances research and data analysis skills, and includes notable performance gains in multi-file code refactoring.

    Source: Anthropic
  • Product

    Updates to Consumer Terms and Privacy Policy

    Updates to consumer terms and privacy policy allowing user data to be used for improving Claude models and extending data retention to five years for users who opt in.

    Source: Anthropic
  • Product

    Usage Policy Update

    Updated Usage Policy to address cybersecurity, agentic use, political content restrictions, and high-risk consumer-facing use cases.

    Source: Anthropic

All Anthropic releases in August 2025

Newest first. Each entry links to the official page it came from.

August 20254 releases

Usage Policy Update

Updated Usage Policy to address cybersecurity, agentic use, political content restrictions, and high-risk consumer-facing use cases.

Claude Opus 4.1

Claude Opus 4.1 is an upgrade to Claude Opus 4 on agentic tasks, real-world coding, and reasoning. It improves coding performance to 74.5% on SWE-bench Verified, enhances research and data analysis skills, and includes notable performance gains in multi-file code refactoring.

Claude modelsModelSource: Anthropic

Where August 2025 sits

Anthropic releases per month, for August 2025 and the 11 months before it. A taller bar means more releases that month; the dated entries for each month are on its own page.

Other companies in August 2025

10 of the companies we track shipped in August 2025; Anthropic ranks 3rd by number of releases.

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