Anthropic models

Anthropic publishes Claude models available through ApiFlux.

Claude Opus 5

Anthropic's flagship Opus model for demanding reasoning, coding, and long-horizon agentic work.

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Anthropic's frontier Sonnet model for coding, agents, and professional knowledge work.

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An Anthropic model designed for autonomous knowledge work and end-to-end coding tasks.

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Anthropic's most capable generally available Opus model for demanding professional and agentic work.

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An Opus model built for long-running, asynchronous agents and complex coding workflows.

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A high-capability Sonnet model for iterative development, complex codebases, and professional workflows.

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An Opus model designed for advanced coding and long-running professional workflows.

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Anthropic's Opus 4.5 frontier model for complex software engineering, agents, and long-horizon computer use.

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Anthropic's fast, efficient Haiku model for responsive applications and high-volume workloads.

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Anthropic's Sonnet 4.5 model optimized for real-world agents and coding workflows.

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Enterprise AI Gateway for routing, securing, and observing every model call.