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Claude Sonnet 5.5 Released: Programming Capabilities Surpass Flagship Model, API Price Halved
3 day ago /
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Author：小编
On September 29, 2026, AI company Anthropic released a new mid-market model, Claude Sonnet 5.5. This model surpasses the flagship Opus 5.5 in programming capabilities while maintaining comparable general performance. The API call price is halved, with overall costs reduced by up to 30%, and security protections are upgraded. This move clarifies Anthropic's product tier strategy and may intensify competition in the mid-market segment of AI large models.
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