These tools often paired with
Together AIvsOpenRouter
Fast inference API for open-source models versus Unified API routing to 200+ LLMs
Compare interactively in Explore →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
Choose OpenRouter when…
- •You want a single API key for all frontier models
- •You're experimenting with many different models
- •Cost optimization across providers is important
Side-by-side comparison
Field
Together AI
OpenRouter
Category
LLM Infrastructure
LLM Infrastructure
Type
Commercial
Commercial
Free Tier
✓ Yes
✓ Yes
Pricing Plans
API: Per token
Usage-based: Per token
GitHub Stars
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Health
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Together AI
Inference API with 200+ open-source models at competitive speeds. Popular for running Llama, Mistral, and other open models at scale.
OpenRouter
Routes requests to 200+ LLMs through one API. Handles fallbacks, cost optimization, and model discovery. Pay per token.
Shared Connections1 tools both integrate with
Only Together AI (7)
OpenRoutervLLMGroqFireworks AIOpenAI APIHuggingFaceDeepInfra
Only OpenRouter (2)
Together AIUnify
Explore the full AI landscape
See how Together AI and OpenRouter fit into the bigger picture — 207 tools, 452 relationships, all mapped.