Claude Sonnet 4.6, open-weight Qwen3.5-397B, Google launches Lyria 3
February 16-18, 2026: Anthropic launches Claude Sonnet 4.6 with improved computer use and 1M token window. Qwen releases Qwen3.5-397B in open-weight Apache 2.0. Google integrates Lyria 3 into Gemini. OpenAI unveils EVMbench, Cohere launches Tiny Aya, Runway opens its Gen-4.5 API.