Anthropic released Claude Sonnet 5.5 on September 28, 2026, the second model in its Claude 5.5 family. It maintains Sonnet 5's pricing but runs 30% faster and costs up to 30% less per task.
OpenAI released GPT-6 Sol and GPT-6 Luna on September 22, 2026 at roughly half the price of their predecessors. On AutomationBench, Sol outperforms competitors at one-tenth the cost per task for workflows across sales, marketing, operations, support, finance and HR.