These tools competes with
OpenAI APIvsTogether AI
GPT-4o, o1, and embeddings from OpenAI versus Fast inference API for open-source models
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 Together AI when…
- •You want fast, affordable inference on open models
- •Fine-tuning on open-source models is on your roadmap
- •You need a scalable alternative to OpenAI for open models
Side-by-side comparison
Field
OpenAI API
Together AI
Category
LLM Infrastructure
LLM Infrastructure
Type
Commercial
Commercial
Free Tier
✗ No
✓ Yes
Pricing Plans
API: Per token
API: Per token
GitHub Stars
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OpenAI API
API access to GPT-4o, o1, and other OpenAI models including embeddings and image generation. The most widely used LLM API in production.
Together AI
Inference API with 200+ open-source models at competitive speeds. Popular for running Llama, Mistral, and other open models at scale.
Shared Connections2 tools both integrate with
Only OpenAI API (19)
CrewAIAutoGenLangChainLlamaIndexMastraPydanticAIsmolagentsAgnoPortKeyLangfuse
Only Together AI (5)
OpenRoutervLLMFireworks AIOpenAI APIHuggingFace
Explore the full AI landscape
See how OpenAI API and Together AI fit into the bigger picture — 123 tools, 304 relationships, all mapped.