Company

Anthropic

Primary category

AI Coding Tools

Best for

Developers and enterprises using Claude for complex code refactoring, debugging, agentic search, and high-rigor analysis.

Pricing

Available to paid Claude users, Claude Code, Anthropic API, and cloud partners at the same pricing as Opus 4 at launch.

Free plan

API

yes

Open source/open weight

Linked launches

Latest launch date

August 5, 2025

Last verified

2026-06-08

Verification & Sources

Official site

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What It Does

Anthropic released Claude Opus 4.1 as an upgrade to Opus 4 for agentic tasks, real-world coding, and reasoning.

Official site Latest launch profile Company profile

AI Coding Tools August 5, 2025

Anthropic released Claude Opus 4.1 as an upgrade to Opus 4 for agentic tasks, real-world coding, and reasoning.

Free: No API: Yes Open: No

Clear use caseBusiness-friendlyDeveloper-friendlyTraction signal

Important as a model-quality update because small frontier upgrades can materially change coding-agent reliability.

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