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Anthropic

Anthropic

Direct

Claude API by Anthropic. State-of-the-art reasoning models including Claude 3.5 Sonnet, Claude 4 Opus, and Claude 4.5 Haiku. Usage-based pricing with no monthly subscription required.

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Provider Info

"API Env Var" ANTHROPIC_API_KEY
"Rate Limits" Varies by usage tier

"Available Models (5)"

Claude 3.5 Sonnet
Claude 4 Opus
Claude 4.5 Haiku
Claude 4.5 Sonnet
Claude 4.1 Opus

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