Claude 4.5 Model Availability

Anthropic announced that Claude 4.5 is now accessible everywhere via its API, using the identifier "claude-sonnet-4-5." The pricing structure remains the same as Claude Sonnet 4, at $3 per million input tokens and $15 per million output tokens. The model is noted for its ability to maintain focus for 30 hours on multistep tasks, indicating improved endurance for complex workflows.

Integrated Productivity Tools

Users of the Claude web interface and dedicated apps gain new capabilities such as direct code execution and file creation within conversations. The system can now generate spreadsheets, slide decks, and documents without leaving the chat environment, streamlining productivity.

Developer Enhancements

Anthropic released a five‑day research preview titled "Imagine with Claude" for Max subscribers, demonstrating real‑time software generation. The Claude Code development tool received several upgrades, including checkpoints that allow progress saving and rollback, a refreshed terminal interface, and a native Visual Studio Code extension. The Claude API also introduces a context‑editing feature and a memory tool to support longer‑running agent tasks.

Safety and Alignment Improvements

Anthropic claims that Claude 4.5 shows reduced tendencies toward sycophancy, deception, power‑seeking, and encouraging delusional thinking compared with earlier models. These safety enhancements aim to make the assistant more reliable and less prone to reinforcing erroneous or harmful user ideas.

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