Copilot
- VS Code's native companion chat
- Default model is Github Copilot, has free tier, can be upgraded
- Supports OpenAI ChatGPT and Anthropic Claude up to a level
- Higher levels can be added
- Other models can be added, ie
- Chat GPT
- Claude
ChatGPT
- OpenAI (the provider)
- Chat GPT for general knowledge
- Chat GPT Codex is the version for development
- Has web version
- Has desktop version
- Has VS Code plugin
- Has terminal version (Codex CLI)
- Models: GPT 5.1 Codex, GPT 5.1 Codex Max
Claude
- Anthropic (the provider)
- Claude for general knowledge
- Claude Code is the version for development
- Has web version
- Has desktop version
- Has VS Code plugin
- Has terminal version (Code Terminal)
- Models: Opus, Sonnet, Haiku
Cursor, Warp: standalone apps, wrapper AI tools for development, support many models.
Gemini only has web version, can be used in VS Code via the Gemini Code Assist extension.
Usual modes
- Agent
- Plan
- Ask
- Edit
