Anthropic releases Claude Opus 4.6 with 1M token context window
Action Required
Businesses relying on Claude for coding, research, or complex task automation must migrate to Claude Opus 4.6 to leverage its enhanced capabilities and avoid disruptions.
AI Impact Summary
Anthropic has released Claude Opus 4.6, a significant upgrade to its flagship model, demonstrating substantial improvements in coding skills, planning capabilities, and reliability across larger codebases. This release introduces a 1M token context window in beta, enabling more complex and extended tasks, and incorporates features like adaptive thinking and effort controls for greater developer flexibility. The model's performance on various benchmarks, including Terminal-Bench 2.0 and Humanity’s Last Exam, surpasses industry standards, highlighting its state-of-the-art intelligence.
Affected Systems
- Date
- 5 Feb 2026
- Change type
- capability
- Severity
- high