Anthropic debuts Claude Sonnet 5.5 running 30% faster than the previous-generation AI model

What happened

Anthropic PBC today announced the launch of Claude Sonnet 5.5, the most capable mid-tier model in the company’s AI family, designed for everyday tasks and a clear upgrade over the previous generation, running over 30% faster at a lower cost. Sonnet operates as the workhorse of Anthropic’s Claude family of models for everyday use and […] The post Anthropic debuts Claude Sonnet 5.5 running 30% faster than the previous-generation AI model appeared first on SiliconANGLE . Anthropic is an artificial intelligence company based in San Francisco, and its products and services include Claude and Claude Code.

The company added that it also has a “strong eye for design,” allowing it to add polish to user interfaces and it can follow templates to create slides that need minimal editing. Anthropic added this capability to comply with global regulations, including the European Union’s AI Act.

Sonnet operates as the workhorse of Anthropic’s Claude family of models for everyday use and Sonnet 5.5 is well trained for tasks such as document generation, summarization, spreadsheets and fixing coding bugs. This release follows the launch of Opus 5.5 , the flagship model in the family, and incorporates clearer writing styles.

Although the company said the new Sonnet 5.5 writes more clearly and in a more human-like way, it also contains invisible text watermarking . Like Opus 5.5, Sonnet 5.5’s writing and communication clarity make it a better partner for collaboration. Anthropic said early testers described it as faster on iteration for less complex tasks and smarter than the previous generation.

Key facts

• Anthropic PBC today — announced: the launch of Claude Sonnet 5.5, the most capable mid-tier model in the company’s AI family, designed for everyday tasks and a clear upgrade over the previous generation, running over 30% faster at a lower cost