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Foundation Model APIs (LLM & Multimodal) · Vendor file

Anthropic

anthropic.com

Claude Opus/Sonnet/Haiku family; metered per-MTok API pricing.

Categories Anthropic serves

The B4 Index places Anthropic in one category. Each category page lays out the build-versus-buy considerations for that decision.

Foundation Model APIs (LLM & Multimodal) Primary

Anthropic compared

Anthropic vs xAI
The B4 Index scores every software category on two axes, strategic differentiation and AI feasibility, to classify it Build, Buy, Bridge, or Beware. Vendor facts here are independent of that call. See the full methodology.