ServerlessText Generation

claude-opus-5

anthropic/claude-opus-5

Claude Opus 5 is Anthropic's most advanced Opus model, powering long-running agents while delivering improvements in coding and professional work.

PublicJSONFunctionMultimodal

OpenAI Compatible

claude-opus-5

Test OpenAI chat completion requests live directly with WhollyAPI serverless API.

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claude-fable-5

$10 / 1M tokens

claude-haiku-4-5

$1 / 1M tokens

claude-opus-4-7

$5 / 1M tokens