
Martian is an AI company specializing in model routing and AI interpretability tools that dynamically route prompts to the best large language models (LLMs) to optimize quality and cost. Their flagship product, the Martian Router®, routes each request to the LLM that delivers the best result at the lowest cost, outperforming leading models like GPT-4, Claude 4 Opus, and Gemini 2.5 Pro. The company offers an API that integrates easily with existing systems, enabling developers and enterprises to reduce AI costs by up to 99.7% while maintaining high performance. Martian also pioneers research in AI safety and model mapping to create a general theory of intelligence for safer AI systems. Their business model includes developer and custom enterprise subscription plans, serving over 300 companies globally, with a strong focus on AI research and innovation.

Martian is an AI company specializing in model routing and AI interpretability tools that dynamically route prompts to the best large language models (LLMs) to optimize quality and cost. Their flagship product, the Martian Router®, routes each request to the LLM that delivers the best result at the lowest cost, outperforming leading models like GPT-4, Claude 4 Opus, and Gemini 2.5 Pro. The company offers an API that integrates easily with existing systems, enabling developers and enterprises to reduce AI costs by up to 99.7% while maintaining high performance. Martian also pioneers research in AI safety and model mapping to create a general theory of intelligence for safer AI systems. Their business model includes developer and custom enterprise subscription plans, serving over 300 companies globally, with a strong focus on AI research and innovation.
Founded: 2022 by Shriyash Upadhyay and Etan Ginsberg
Product focus: Model routing (Martian Router), unified API (Martian Gateway) and LLM compliance automation (Airlock)
Funding: $9M disclosed (seed announced Nov 15, 2023); Crunchbase shows a later round dated 2024-09-17
Investors: Backed by investors including NEA, General Catalyst, Prosus Ventures, Carya Venture Partners and Accenture Ventures
HQ: San Francisco (28 Second St listed on company pages)
LLM routing, interpretability/measurement of model behavior, and enterprise LLM compliance automation.
2022
Data and Analytics
$9,000,000
Announced at emergence from stealth; other investors in the round include General Catalyst, Prosus Ventures, and Carya Venture Partners.
Crunchbase lists a funding event on this date and shows recent investors including Accenture Ventures and Prosus Ventures.
“Backed by established venture firms and corporate VC including New Enterprise Associates (lead on disclosed $9M), General Catalyst, Prosus Ventures, Carya Venture Partners, and Accenture Ventures.”