Felo is a multilingual AI answer engine from Tokyo-based Sparticle Inc. that searches the web, academic papers, and social sources across 30+ languages and returns answers with verifiable citations. It is built for researchers, students, and multilingual professionals who want cross-lingual search for free, with an optional paid upgrade to more advanced language models.
What it is
Felo works like a conversational search engine: you ask a question in your own language and it retrieves and synthesizes results drawn from sources published in many other languages, then answers back in yours. Its Research tool is described by the vendor as simultaneously searching the web, more than 200 million academic papers, and live X/Twitter posts across 30+ languages, which positions Felo less as a single-database search tool and more as a broad, live retrieval layer spanning general web content, scholarly literature, and real-time social discussion.
How it answers and cites sources
Felo attaches citations to its answers so claims can be traced back to the pages they came from. A third-party review of AI search engines describes Felo's output as organized with hyperlinked citations for verification, and Felo itself states that every conclusion comes with clear, verifiable citations, explicitly framed against hallucinated or fabricated sources. As with any vendor claim, that promise is worth spot-checking on unfamiliar topics rather than taken at face value.
Pricing and access
Felo is freemium. The free tier is available to everyone and refreshes with 200 credits automatically each day, with no baseline model restriction described by the vendor beyond that credit allowance. The Pro plan costs $14.99 per month (listed by the vendor as ¥2099/month) and adds access to more advanced third-party models — the vendor names GPT-4o, Claude 3.5 Sonnet, and OpenAI o1 as included on Pro — plus higher usage limits than the free plan.
Privacy and data use
The sources reviewed for this profile do not include a dedicated GDPR statement or data-training policy from Sparticle Inc. for Felo. Anyone who needs a documented answer on EU hosting, data retention, or whether conversations are used to train models should check Felo's own privacy policy directly before relying on it for sensitive or regulated queries — that detail is not established by the vendor pages consulted here.
Who it's for
Felo is aimed at people who regularly need information that lives outside their own language — researchers scanning academic literature, students doing cross-border research, and professionals tracking multilingual news or social conversation. The free daily-credit tier makes it accessible for casual, everyday lookups, while the $14.99/month Pro plan suits anyone who wants to run more queries through stronger third-party models like GPT-4o or Claude 3.5 Sonnet without hitting the free plan's limits.