Anthropic launches Claude Sonnet 5 with enhanced agentic capabilities and Opus-competitive performance
By
@AnthropicAI
Summary
Anthropic introduces Claude Sonnet 5, described as the most agentic Sonnet model yet. The model can make plans, use tools like browsers and terminals, and run autonomously at a level previously requiring larger, more expensive models. While earlier Sonnet models (3.5, 3.6, 3.7) pioneered agentic AI capabilities in coding and tool use, recent gains had shifted to Opus-class models. Sonnet 5 narrows this gap significantly, with performance close to Opus 4.8 but at lower prices, making advanced agentic capabilities more accessible for developers and professional work.
Source
Hacker NewsAnthropic launches Claude Sonnet 5 with enhanced agentic capabilities and Opus-competitive performanceanthropic.comKey quotes
· 3 pulledClaude Sonnet 5 is built to be the most agentic Sonnet model yet.
It can make plans, use tools like browsers and terminals, and run autonomously at a level that, just a few months ago, required larger and more expensive models.
Sonnet 5 narrows the gap: its performance is close to that of Opus 4.8, but at lower prices.
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