OpenRouter is a New York-based AI infrastructure company founded in 2023 by Alex Atallah and Louis Vichy. It provides a unified API and marketplace for accessing multiple large language models. The company reportedly raised about $164M, including a $113M Series B led by CapitalG at a reported $1.3B valuation, and Stripe reportedly agreed to acquire it for $7.5B in August 2026. Its institutional and media profile is strong, while its Trustpilot score is poor.
Company overview
Website & domain
Registration data not publicly available.
Owners & key people
Trust signals
- Named founders and executives are publicly identified.
- Founded in 2023 and backed by prominent investors including Andreessen Horowitz, Menlo Ventures, Sequoia Capital, CapitalG, and Nvidia.
- Reported funding, valuation, revenue growth, and acquisition coverage from sources including The New York Times and investor publications.
- Official product is a clearly described AI API and model marketplace with an identifiable domain and business purpose.
- Reported acquisition by Stripe would provide a substantial additional legitimacy signal if completed.
Red flags
- Trustpilot rating is very low at 1.6/5, with 49 reviews in the last 12 months according to the Trustpilot listing retrieved October 2, 2026.
- Trustpilot indicates the company has not invited customers to submit reviews, so the review sample may not be representative.
- Public review complaints should be interpreted cautiously because the available results do not establish that every complaint is verified or representative of the service as a whole.
- Employee count, revenue, funding totals, and transaction details vary across secondary sources; some figures are estimates rather than company-reported metrics.
Reviews & reputation
OpenRouter has strong business and investor credibility signals: identifiable founders, prominent institutional investors, substantial reported funding, coverage by major business publications, and a reported Stripe acquisition. However, its consumer-facing Trustpilot reputation is poor, with a 1.6/5 score and 49 recent reviews, and Trustpilot notes that the company did not invite customers to review it. The conflicting signals suggest a legitimate, rapidly growing AI infrastructure company with notable customer-service or billing-related dissatisfaction among reviewers, rather than an obvious scam.
In the news
- OpenRouter announced a $113M Series B in May 2026 led by CapitalG at a reported $1.3B valuation.
- Stripe reportedly agreed to acquire OpenRouter in August 2026 for $7.5B. The reported transaction allocated approximately $1.5B to founders and $6B to investors.
- OpenRouter is described as a unified API and marketplace allowing developers to access multiple AI models through one interface.
Sources
- https://www.trustpilot.com/review/openrouter.ai
- https://www.trustpilot.com/review/openrouter.ai?page=2
- https://en.wikipedia.org/wiki/OpenRouter
- https://research.contrary.com/company/openrouter
- https://research.contrary.com/company/openrouter/quick-facts
- https://ch.trustpilot.com/review/openrouter.ai
- https://www.nytimes.com/2026/05/26/business/dealbook/openrouter-ai-models-fundraising.html
- https://www.linkedin.com/pulse/openrouters-gtm-playbook-how-grew-past-150m-arr-hoda-mehr-evmkc
- https://www.trustpilot.com/review/aimlapi.com
- https://forgeglobal.com/openrouter_ipo/
- https://sacra.com/c/openrouter/
- https://uk.trustpilot.com/review/openrouter.ai?page=3
AI-compiled from public sources. Last updated 10/2/2026.