**[Claude Sonnet 5.5 Officially Launches on B.AI, API and Web Chat Now Open]** According to Deep Tide TechFlow, on September 29, B.AI announced that Anthropic's latest Sonnet model, Claude Sonnet 5.5, has officially launched on the platform. As a faster and more cost-effective complement to Claude Opus 5.5, Claude Sonnet 5.5 improves output speed by over 30% and reduces single-task costs by up to approximately 30%. It is designed for scenarios such as well-defined software engineering tasks, daily agent workflows, and professional document creation. The model supports image and PDF comprehension, and can generate reports, presentations, spreadsheets, and UIs. It offers five adjustable reasoning intensity levels and a 1 million token context window, with no additional charges for long contexts. Currently, both the B.AI API and Web Chat are open for access. Developers and users can directly utilize this new generation of the Sonnet model, which balances speed, cost, and long-context capabilities. You are welcome to visit B.AI to experience it.