Claude Opus 4.5

Claude Opus 4.5 represents a significant advancement in AI capability, designed with a clear focus on the most demanding real-world applications. The model positions itself as the best in the world for coding tasks, autonomous agents, and computer use—work that requires sustained reasoning and precise tool handling over extended periods. On SWE-bench Verified, a benchmark measuring performance on actual software engineering challenges, it achieved state-of-the-art results, outperforming other frontier models. Beyond technical work, the release notes describe meaningful improvements in everyday professional tasks like deep research, working with spreadsheets, and creating presentations. The model serves as a preview of larger shifts in how knowledge work gets accomplished, with new capabilities for longer-running agentic workflows and integrations into tools like Excel, Chrome, and desktop environments.

The release makes high-capability AI more broadly accessible across platforms, available through Anthropic's own apps and API as well as major cloud providers including Vertex. The pricing structure reflects an intent to bring Opus-level intelligence to more users, teams, and enterprises than previous generations. In the consumer-facing Claude applications, the model lifts previous conversation length constraints, allowing for extended interactions without breaking continuity. The focus on agent tooling, function calling, and computer use positions this release as a foundation for building more sophisticated automated workflows. Practitioners working on software engineering automation, research synthesis, or document-heavy business processes will find particular value in the model's combination of accuracy and extended operational capacity.