Claude Opus 4.6 at a glance
Opus 4.6 improves planning, long agentic tasks and code review over Opus 4.5, adds a 1M-token context window in beta for the first time in an Opus model, and keeps the $5/$25 per million token price.
What changed with Claude Opus 4.6
On February 5, 2026, Anthropic released Claude Opus 4.6, an upgrade to its top model at the time. Anthropic says it plans more carefully, sustains agentic tasks for longer, works more reliably in large codebases and catches more of its own mistakes. It is the first Opus model with a 1M-token context window, offered in beta. At launch, Anthropic reported top scores on Terminal-Bench 2.0, Humanity's Last Exam and BrowseComp, and a lead of about 144 Elo points over GPT-5.2 on GDPval-AA.
The release came with product changes: agent teams in Claude Code, context compaction and adaptive thinking on the API, new effort controls, upgrades to Claude in Excel and a research preview of Claude in PowerPoint. Opus 4.6 is available in claude.ai, the API as claude-opus-4-6 and the major cloud platforms at $5 input and $25 output per million tokens.
Claude Opus 4.6 benchmarks and pricing
Values are copied from the linked source on the date shown. They are not IA Compa measurements.
- Input price per 1M tokensas of · Source for Input price per 1M tokens: anthropic.com (opens in a new tab)
- $5.00
- Output price per 1M tokensas of · Source for Output price per 1M tokens: anthropic.com (opens in a new tab)
- $25.00
- Context window (beta)as of · Source for Context window (beta): anthropic.com (opens in a new tab)
- 1M tokens (beta)
How it compares
Other models in the same category that we have covered, using each model's latest recorded value. (Models)
Where to compare Claude Opus 4.6
Independent leaderboards and official resources for comparing this model yourself. Rankings change often; each site shows its own current data.
Why Claude Opus 4.6 matters for businesses
For agencies, the larger context window and longer-running agent behavior matter most for work on big codebases, long documents and multi-step research. Anthropic notes the model can overthink simple tasks, so lowering the effort setting is a practical way to control cost and latency in production.
Sources for this story
- Introducing Claude Opus 4.6 (opens in a new tab)Official
Anthropic · anthropic.com
Last verified: . IA Compa summarizes public announcements for business readers. We are not affiliated with the companies mentioned. Always confirm details, pricing, and availability with the official source.
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