# Claude Opus 4.6 Anthropic

<https://www.anthropic.com/news/claude-opus-4-6>

- Host: [anthropic.com](https://links.thingelstad.xyz/hosts/anthropic.com/)
- Saved: February 5, 2026 (2026-02-05T22:51:36Z)
- Record: https://links.thingelstad.xyz/links/ffb4fb0646fb/
- JSON: https://links.thingelstad.xyz/links/ffb4fb0646fb.json

## What Jamie wrote

Anthropic continues to push heavily into automated coding.

> The new Claude Opus 4.6 improves on its predecessor’s coding skills. It plans more carefully, sustains agentic tasks for longer, can operate more reliably in larger codebases, and has better code review and debugging skills to catch its own mistakes. And, in a first for our Opus-class models, Opus 4.6 features a 1M token context window in beta.

The 1 million token context window is a big deal. Programming has always required you to keep a large amount of "state" in your mind as you create, and for LLMs this shows up as context. Larger context windows allow you to solve more complex problems.

## Facts

- Kind: [Page](https://links.thingelstad.xyz/kinds/page/)

## Appears in

- [WT340: Weekly Thing 340 / Moltbook, Frontier, Poster](https://weekly.thingelstad.com/archive/340/), Notable

## Same host

- [Introducing Anthropic Interviewer | Anthropic](https://links.thingelstad.xyz/links/dcd42f541b0a/) (anthropic.com, December 11, 2025)
- [Introducing Bloom: an open source tool for automated behavioral evaluations Anthropic](https://links.thingelstad.xyz/links/f2f6a3c7bbc6/) (anthropic.com, December 26, 2025)
- [Claude's new constitution Anthropic](https://links.thingelstad.xyz/links/6b11fc6d9c8b/) (anthropic.com, January 22, 2026)
- [Claude is a space to think | Anthropic Anthropic](https://links.thingelstad.xyz/links/0073cb028a74/) (anthropic.com, February 12, 2026)
- [Introducing Sonnet 4.6 Anthropic](https://links.thingelstad.xyz/links/509dbec071b6/) (anthropic.com, February 19, 2026)

## Saved the same week

- [Pick your agent: Use Claude and Codex on Agent HQ - The GitHub Blog](https://links.thingelstad.xyz/links/b065ce914cd8/) (github.blog, February 5, 2026)
- [BlogBook — WordPress, Micro.blog, or Ghost → Markdown Book](https://links.thingelstad.xyz/links/2fc995fb7c32/) (blogbook.my, February 5, 2026)
- [Introducing OpenAI Frontier | OpenAI](https://links.thingelstad.xyz/links/9e1fa854ea22/) (openai.com, February 5, 2026)
- [Introducing GPT-5.3-Codex | OpenAI](https://links.thingelstad.xyz/links/068683f1f425/) (openai.com, February 5, 2026)
- [A sane but extremely bull case on Clawdbot / OpenClaw | Brandon Wang](https://links.thingelstad.xyz/links/e1222467ccb0/) (brandon.wang, February 5, 2026)

## Elsewhere

- Wayback Machine: https://web.archive.org/web/*/https://www.anthropic.com/news/claude-opus-4-6