Top story
TOP STORY: Major Frontier Model Releases Three leading labs shipped significant model updates simultaneously, Anthropic, Google, and Alibaba all dropped new releases today, marking an unusually active day for frontier model competition. Frontier Model News
Industry
Claude Sonnet 4.6, Anthropic - Anthropic releases the latest iteration of its Sonnet series with updated capabilities. Source
Gemini 3.1 Pro Preview, Google - Google drops a preview release of Gemini 3.1 Pro, continuing its rapid model iteration cadence. Source
Qwen 3.5, Alibaba - Alibaba advances its open-weight Qwen lineup with the 3.5 release. Source
Previously
Frontier Model News (Feb 20) - Yesterday's model landscape roundup for context and comparison. Source