OpenRouter
OpenRouter provides a single API endpoint that routes requests to over 100 AI models including GPT-4, Claude, Gemini, and open-source alternatives. It handles rate limits, fallbacks, and cost optimisation automatically, making it the default LLM router for production AI apps.
- Location
- San Francisco, USA
- Raised
- $6M
- Stage
- Seed
- Founded
- 2023
- Category
- AI
- Funding
- VC-backed
- Team
- 1–10
Funding figures as of Jul 2025 · not independently verified
Founders of OpenRouter
- Nick Walton
Investors backing OpenRouter
- Sequoia
Frequently asked questions
What does OpenRouter do?
OpenRouter provides a single API endpoint that routes requests to over 100 AI models including GPT-4, Claude, Gemini, and open-source alternatives. It handles rate limits, fallbacks, and cost optimisation automatically, making it the default LLM router for production AI apps.
Where is OpenRouter based?
OpenRouter is based in San Francisco, USA.
When was OpenRouter founded?
OpenRouter was founded in 2023.
How much has OpenRouter raised?
OpenRouter has raised $6M in their Seed round as of Jul 2025.
Who founded OpenRouter?
OpenRouter was founded by Nick Walton.
Who has invested in OpenRouter?
OpenRouter is backed by Sequoia.
How OpenRouter would pitch themselves
○ Auto-generated01Target customer
Every major LLM — the core audience OpenRouter's product is built around.
02Problem they solve
OpenRouter provides a single API endpoint that routes requests to over 100 AI models including GPT-4, Claude, Gemini, and open-source alternatives. It handles rate limits, fallbacks, and cost optimisation automatically,… The category has historically been served by tools that miss the modern workflow this product is built around.
03Key differentiator
OpenRouter differentiates on unified api for every major llm. Backed by Sequoia, $6M raised — the company has resources + validation to compound this thesis. Founded by Nick Walton.
04Go-to-market strategy
Early-stage GTM — typically product-led growth (free tier or low-friction onboarding) paired with founder-led sales for the first 100 customers. Heavy content marketing + community presence on Twitter/X, LinkedIn, and category-specific Slack groups.