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ChatGPT / GPT-4

Conversational AI and code generation

TextFreemium

OpenAI's flagship language model for chat and code. Powers ChatGPT and the API for embeddings, completion, and tool use.

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Why it matters

  • Industry-standard API for embeddings and chat completions.
  • Strong at code generation and explanation.
  • Widely integrated into dev tools and products.

Key Specs

  • API: REST (OpenAI API).
  • Self-hosted: No.
  • License: Proprietary.