Inferact (@inferact) — Twitter Score 14 out of 1000

Inferact Inc. is an AI inference infrastructure company co-founded by maintainers of the open-source vLLM engine to build and commercialize next-generation inference technology. Inferact's Twitter Score is 14 out of 1000 as of September 2026, ranking #70,423 among 486,860 tracked accounts.

Inferact was co-founded by Simon Mo, Woosuk Kwon, Kaichao You, and Roger Wang, all of whom were maintainers of the vLLM open-source inference engine. The company states its purpose is to accelerate vLLM adoption while ensuring that optimizations it develops flow back to the open-source community. According to the company, the vLLM ecosystem supports more than 500 model architectures, runs on more than 200 accelerator types, and has attracted more than 2,000 contributors.

Inferact reported raising a seed round of $150 million at an $800 million valuation, co-led by Andreessen Horowitz and Lightspeed Venture Partners, as of January 2026. Andreessen Horowitz described the company as developing a next-generation commercial inference engine while continuing work around vLLM. Additional backers include Sequoia Capital, Altimeter Capital, Redpoint Ventures, ZhenFund, The House Fund, Striker Venture Partners, Databricks Ventures, and others. Inferact has 5,870 followers as of September 2026 and has published 128 posts on the platform.

Inferact has been mentioned by 30 accounts a total of 68 times.

Who follows Inferact on X?

The accounts that follow Inferact include 75 founders, 21 angel investors, 18 influencers and 4 VCs, among them Tarun Chitra, Matthew Graham, Knower, Jonah, Teng Yan and Fedes Intern.