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Claude Opus 5 chat from Anthropic through an OpenAI-compatible endpoint. It takes up to 1,000,000 tokens of text and image context and returns up to 128,000, with low, medium or high reasoning effort, up to 128 tool definitions and SSE streaming.

Input $4.50Output $22.50per 1 million tokens10% below the publisher's list priceCached input $0.45Cache write $5.50Anthropic official priceInput $5Output $25