These tools integrates with
OpenAI APIvsAutoGen
GPT-5 era models, embeddings, and Responses API from OpenAI versus Conversational multi-agent framework — superseded by Microsoft Agent Framework
Compare interactively in Explore →Choose OpenAI API when…
- •You need the broadest ecosystem and most integrations
- •GPT-4 or o-series reasoning models are required
- •Assistants API, fine-tuning, or batch API are needed
Choose AutoGen when…
- •You want conversational multi-agent orchestration
- •Research or Microsoft ecosystem integration matters
- •You need flexible human-in-the-loop patterns
Side-by-side comparison
Field
OpenAI API
AutoGen
Category
LLM Infrastructure
Agent Frameworks
Type
Commercial
Open Source
Free Tier
✗ No
✓ Yes
Pricing Plans
API: Per token
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GitHub Stars
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⭐ 34,000
Health
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●70 — Active
OpenAI API
API access to GPT-5, GPT-5.5, o3/o4 reasoning models, and the Responses API; plus embeddings, image, audio, and Realtime endpoints. The most widely deployed LLM API in production.
Shared Connections5 tools both integrate with
Only OpenAI API (34)
AutoGenLlamaIndexPydanticAIsmolagentsAgnoMastraPortKeyHeliconeMistral APICohere API
Only AutoGen (2)
OpenAI APIMicrosoft Agent Framework
Explore the full AI landscape
See how OpenAI API and AutoGen fit into the bigger picture — 235 tools, 543 relationships, all mapped.