tool-use

Amazon Web Services has integrated Claude's tool use (function calling) capability into Bedrock, enabling serverless document processing for custom entity recognition. The solution uses Claude 3.5 Sonnet to extract structured data like names, dates, and addresses from driver's licenses and other documents without traditional model training.

Amazon Nova 2 Lite expands context window to 1 million tokens, introduces extended thinking with developer controls, and adds native tool use and web grounding. AWS claims Nova 2 Lite surpasses Nova 1 Pro on multi-step reasoning while costing 7x less and running up to 5x faster.

OpenAI has released version 2.25.0 of its Python SDK, adding support for GPT-5.4 and introducing a new tool search feature alongside a computer control tool for agent-based automation. The update, released March 5, 2026, also includes API schema refinements and parameter changes to the prompt cache and message handling.