Claude Opus 4.6 is Anthropic's most powerful large language model to date, designed for complex reasoning, coding, and enterprise workflows. Released on February 5, 2026, it builds upon the intelligence of Opus 4.5 with enhanced reliability and precision, particularly in coding, agentic tasks, and handling intricate requests. Anthropic, an AI safety company founded in 2021 by former OpenAI researchers, developed Claude Opus 4.6 with a focus on helpfulness, harmlessness, and honesty. It is considered the best Opus model for coding, enterprise agents, and professional work.
Key features of Claude Opus 4.6 include improved coding performance, sustained agentic behavior for complex tasks, and better code review and debugging capabilities. It excels in areas like autonomous coding, sophisticated AI agents, and high-stakes enterprise workflows, such as financial analysis, legal document review, and cybersecurity investigations. A notable feature is its expanded context window, with a 1 million token context window available in beta, allowing the model to maintain coherence over larger codebases, documents, and extended tasks. Claude Opus 4.6 is available on the Claude Developer Platform, Amazon Bedrock, Google Cloud's Vertex AI, and Microsoft Foundry. Pricing starts at $5 per million input tokens and $25 per million output tokens. For business users, Claude Opus 4.6 is accessible through Anthropic's Pro ($20/month), Team, and Max ($100/month) subscription tiers.