Sonnet 5 is now available in the model picker in Cosmos.
New model, same story: better performance for less money. Sonnet 5 begins to close the gap to frontier-level intelligence, bringing near-Opus performance at Sonnet pricing. This means that quality and cost become less of a trade-off, and we recommend trying Sonnet 5 for work where cost and throughput matter most.
Until August 31, experience this new level of Sonnet intelligence at a discount ($2/M input tokens, $10/M output). After this period, Sonnet 5 will be priced the same as previous Sonnet models.
Claude@claudeai
Introducing Claude Sonnet 5, our most agentic Sonnet yet. It makes plans, uses tools like browsers and terminals, and runs autonomously at a level that just a few months ago required larger and more expensive models.
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