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OpenAI API

Programmatic access to GPT and embeddings

Code / DevToolsFreemium

API for GPT-4, embeddings, and fine-tuning. Used by most AI-powered products.

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Why it matters

  • De facto standard for LLM integration.
  • Embeddings and function calling.
  • Usage-based pricing.

Key Specs

  • Self-hosted: No.
  • API: REST.