Woofun AI reports that Anthropic has launched Claude Sonnet 5, an AI model designed for high autonomy in planning, browser interaction, and terminal operations. The company noted that this level of capability previously necessitated larger, more costly models.

Sonnet 5 demonstrates marked improvements over Sonnet 4.6 in inference, coding, and knowledge tasks. Its performance aligns with Opus 4.8 while maintaining a lower operational cost.