Build advanced reasoning agents with Claude Sonnet 4.5, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $3.00/1M input and $15.00/1M output tokens, native tool calling support. Access Claude Sonnet 4.5 via the Perplexity Agent API with up to 64K output tokens.
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Claude Sonnet 4.5 by Perplexity Agent costs $3.00 per 1M input tokens and $15.00 per 1M output tokens. Cached reads cost $0.30 per 1M tokens.