Anthropic upgrades Claude with new Sonnet 5 model, details here

Key Points:

• Anthropic has launched Claude Sonnet 5, the latest medium-sized AI model, replacing Sonnet 4.6 and offering improved agentic capabilities such as planning, tool use, and autonomous operation previously limited to larger models.
• Sonnet 5's performance closely matches that of the larger Opus 4.8 model but at a lower cost, with significant enhancements in reasoning, coding, and knowledge tasks.
• Claude Sonnet 5 is now the default model for both Free and Pro users, available at an introductory price of $2 per million input tokens and $10 per million output tokens until August 31, 2026, after which standard pricing will apply.
• Anthropic also maintains more advanced models Mythos 5, with fewer guardrails for select users, and Fable 5, a safer version currently restricted by U.S. government regulations, with plans to restore access.
• Alongside Sonnet 5, Anthropic released a new desktop app featuring Claude Science for Mac and Linux, enhancing user accessibility and experience.