Anthropic has released Claude Opus 4.6, its smartest model yet, featuring groundbreaking capabilities including new agent teams, PowerPoint integration, and a 1 million token context window. The new model significantly improves on its predecessor coding skills and delivers state-of-the-art performance on several key evaluations.
The new Claude Opus 4.6 improves on its predecessor 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. In a first for Opus-class models, Opus 4.6 features a 1M token context window in beta.
Opus 4.6 can also apply its improved abilities to a range of everyday work tasks: running financial analyses, doing research, and using and creating documents, spreadsheets, and presentations. Within Cowork, where Claude can multitask autonomously, Opus 4.6 can put all these skills to work on your behalf.
The model performance is state-of-the-art on several evaluations. For example, it achieves the highest score on the agentic coding evaluation Terminal-Bench 2.0 and leads all other frontier models on Humanity Last Exam, a complex multidisciplinary reasoning test. On GDPval-AA an evaluation of performance on economically valuable knowledge work tasks in finance, legal, and other domains Opus 4.6 outperforms the industry next-best model (OpenAI GPT-5.2) by around 144 Elo points, and its own predecessor (Claude Opus 4.5) by 190 points.
In Claude Code, users can now assemble agent teams to work on tasks together. On the API, Claude can use compaction to summarize its own context and perform longer-running tasks without bumping up against limits. The release also introduces adaptive thinking, where the model can pick up on contextual clues about how much to use its extended thinking, and new effort controls to give developers more control over intelligence, speed, and cost.
Anthropic has also made substantial upgrades to Claude in Excel, and is releasing Claude in PowerPoint in a research preview. This makes Claude much more capable for everyday work tasks.
Pricing remains the same at $5/$25 per million tokens. The model is available on claude.ai, the API, and all major cloud platforms.
