Claude Agent SDK vs Gemini API
These two do quite different things, so neither is a direct alternative to the other.
Claude Agent SDK Anthropic
The agent loop behind Claude Code as a TypeScript and Python library, with tools, skills, MCP and subagents.
VisitGemini API Google
Gemini models with long context and native video and audio input, through AI Studio and Vertex AI.
VisitSide by side
| Property | Claude Agent SDK | Gemini API |
|---|---|---|
| Type | Product | Product |
| Category | AI agents and automation | AI models and APIs |
| Made by | Anthropic | |
| Pricing | Pay per use | Pay per use |
| Open source | No | No |
| API | Yes | Yes |
| Platforms | API | API |
| Startup | Yes | No |
Features
Only Claude Agent SDK
- agent framework
- mcp
- skills
- multi-agent
Both
None
Only Gemini API
- llm api
- reasoning
- long context
- image generation
- embeddings
- voice