Felo
Felo Inc. is a Tokyo-based AI startup building a multilingual AI search engine, real-time translation, document automation, and unified LLM API platform serving Japanese enterprises, knowledge workers, and AI agent developers across Japan, South Korea, Taiwan, and the United States.
- Company typePrivate
- Founded2024
- HeadquartersTokyo, Japan
- Headcount11–50
- GTM typeB2B and B2C
- OfferingSoftware
What Felo does
Felo Inc. (Felo株式会社) is a Tokyo-headquartered AI startup developing a multilingual AI search engine and productivity platform. The company was founded in 2024 and operates with 11-50 employees from its headquarters in Chiyoda-ku, Tokyo. Its core products include Felo AI Search (a multilingual search engine with source citation and Japanese-optimized accuracy across 40+ languages), Felo 瞬訳 Shunnyaku (real-time simultaneous interpretation with 0.3-second latency), Glarity (a browser extension for web, video, and PDF summarization), Felo LiveDoc (a collaborative AI Agent Workspace for Documents launched in November 2025), Felo Slides (an AI presentation generator), and the Felo OpenAPI Platform (a unified API providing single-key access to multiple LLMs and tool APIs). The technology is built on RAG architecture and integrates with Claude, GPT, and Grok models alongside proprietary retrieval, translation, and agent orchestration layers.
Felo serves three horizontal customer segments: enterprise businesses in Japan (with disclosed adopters including Hakuhodo DY One, Teradata, Assist, and Kyujin Journal), knowledge workers in Japan and the United States, and developers and AI agent operators using platforms such as Claude Code, Codex, OpenClaw, and Hermes Agent. The company reports 5 million+ cumulative users, 200+ enterprise customers, and 99.9% system uptime, with stated expansion plans for South Korea and Taiwan funded by a July 2025 Series A round of approximately 1.5 billion yen (~USD 10 million) led by Peak XV Partners and Mirae Asset Venture Investment.
Felo's go-to-market combines product-led growth (a free tier with 200 daily credits) with API-first distribution for developers and direct enterprise sales for larger organizations. Revenue is generated through tiered subscriptions ($14.99/month or $149.99/year), consumption-based credit usage (1000 credits = $1), and custom enterprise contracts. Marketing relies on content marketing, SEO presence in AI search engine comparisons, Japan-based seminars, and developer relations through multilingual API documentation.
Felo firmographics
Firmographics- Name
- Felo
- Legal name
- Felo株式会社
- Website
- https://felo.ai
- Company type
- Private
- Founded year
- 2024
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Felo Inc. is a Tokyo-based AI startup building a multilingual AI search engine, real-time translation, document automation, and unified LLM API platform serving Japanese enterprises, knowledge workers, and AI agent developers across Japan, South Korea, Taiwan, and the United States.
- Ownership category
- akta.pro rank
Felo industry classification
Industry- Product category
- Multilingual AI Search and Productivity Platform
- NAICS
- Web Search Portals and All Other Information Services (519290), Software Publishers (5132)
- SIC
- Services-Prepackaged Software (7372)
- akta.pro primary industry
- Enterprise Search, Indexing & Content Discovery (HDAEAGAH)
Keywords
Where Felo is headquartered
LocationHeadquarters
- HQ city
- Tokyo
- HQ country
- Japan
- HQ region
- Asia
Offices1 record
Markets served
Felo business model
Business model- GTM type
- B2B and B2C
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Marketing or Sales, Operations
Revenue model
- API Subscription Plans: Felo offers tiered subscription plans (Standard free, Monthly $14.99, Annual $149.99, Enterprise custom) providing credits for API usage, Playground, and Felo tools. Credits are consumed based on model selection and tool usage at a rate of 1000 credits = $1.
- Usage-based Credits: Consumption-based revenue from API calls, model usage (token-based pricing), and tool-specific operations. Credits are deducted per request based on actual usage including Pro Search (15 credits/request), Research Agent (150 credits/request), PPT generation (30-150 credits/page), and image generation (50-300 credits/image).
- Enterprise Custom Solutions: Custom enterprise plans with team access, centralized purchasing, large-scale planning, and dedicated corporate support. Pricing negotiated based on organizational needs and volume requirements.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Pay-as-you-go | Standard Free - 200 daily credits with partial access |
| Subscription | Monthly | Monthly Plan - 15,000 monthly credits at $14.99/month |
| Subscription | Annual | Annual Plan - 15,000 monthly credits at $12.5/month (save 16%) |
| Subscription | Multi-year contract | Enterprise Team - Custom volume with team support |
Go-to-market motion2 records
Distribution channels5 records
Marketing channels5 records
Felo product offering
Product offeringCore offering
Felo develops and provides a multilingual AI search engine and productivity platform that combines real-time AI search with source citation, simultaneous interpretation, AI-powered document collaboration, AI presentation generation, and a unified API platform. The platform is built on Retrieval-Augmented Generation (RAG) architecture and serves both individual developers and knowledge workers through self-serve subscriptions and Japanese enterprises through custom direct-sales contracts.
Product overview
Felo offers a suite of AI-powered products centered on multilingual search, real-time translation, and document automation. The core portfolio includes Felo AI Search (multilingual search engine), Felo 瞬訳 Shunnyaku (real-time simultaneous interpretation), and Glarity (browser extension for web/video summarization). Felo LiveDoc is positioned as a collaborative AI Agent Workspace for Documents. Supporting products include Felo Slides (AI presentation generator), LLM Playground (free model chat interface), and the Felo API Platform for developers integrating AI capabilities. All products share a unified credits system and support multilingual functionality across 40+ languages with primary focus on Japanese and English markets.
Differentiator
Problem solved
Functional benefit
Brands
- LiveDoc: World's first Collaborative AI Agent Workspace for Documents that enables AI agents to autonomously handle tasks such as translation, analysis, and document optimization.
- Glarity
- Felo 瞬訳
Products and services
- Felo AI Search Multilingual AI search engine providing real-time question answering with source citation and Japanese-optimized accuracy, supporting over 40 languages for business information gathering workflows.
- Felo 瞬訳 (Shunnyaku) Real-time simultaneous interpretation service for meetings and business negotiations with 0.3-second translation latency, customizable professional terminology dictionaries, and automatic multilingual meeting minutes generation.
- Glarity Browser extension that instantly summarizes web pages, YouTube videos, and PDFs, extracting essential information from content-heavy sources; available as a Chrome and Edge extension.
- Felo LiveDoc Collaborative AI Agent Workspace for Documents enabling AI agents to autonomously handle translation, analysis, and document optimization; positioned as the world's first collaborative AI Agent workspace for documents.
- Felo Slides AI presentation maker that generates editable decks from ideas, files, webpages, videos, and research material, supporting chart-rich presentations, multilingual versions, custom templates, and PDF/PPTX export.
- Felo API Platform (Felo OpenAPI) Unified API platform providing LLM model access (Claude Opus 4.8, Claude Sonnet 4.6, Claude Haiku 4.5, GPT-5.6 Sol, GPT-5.6 Terra, Grok 4.5) alongside tool APIs for search, X search, web extraction, PPT generation, mindmaps, images, LiveDocs, and YouTube subtitling, with OpenAI-compatible endpoints and a Python SDK.
- LLM Playground Free online platform for chatting with multiple AI models including GPT-4o, Claude, and Gemini, using the shared Felo credits system.
Quantifiable outcome
- 99.9% system uptime
- +3 more outcomes
Companies that use Felo
Customer profileNamed customers4 records
Segments3 records
Ideal customer profiles3 records
Felo technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration2 records
AI capability13 records
Feature6 records
Felo partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered notable.
- Hakuhodo DY OnenotableMajor Japanese advertising and marketing company that has adopted Felo enterprise AI solutions. Listed as a trusted customer on Felo's corporate website.
- TeradatanotableGlobal data analytics and analytics company that has adopted Felo AI search and enterprise solutions. Listed as a trusted customer on Felo's corporate website.
- AssistnotableJapanese IT services company (アシスト) that has adopted Felo enterprise solutions. Listed as a trusted customer on Felo's corporate website.
- Kyujin JournalnotableJapanese online job posting platform (求人ジャーナル) that has adopted Felo enterprise solutions. Listed as a trusted customer on Felo's corporate website.
Scale indicators5 records
Recent moves7 records
Expansion highlights5 records
Felo competitors and assessment
Company assessmentBroad incumbents
- Anthropic: Anthropic provides Claude models and Claude Code — both a key upstream supplier for Felo's API platform and an emerging direct competitor via Claude's search/agent features.
- OpenAI: OpenAI's ChatGPT Search and API platform compete across both Felo AI Search and the Felo API Platform. Felo relies on OpenAI as a model supplier while competing with it as a product.
- Brave Search: Brave offers independent web search with an integrated AI answer engine (Leo AI), comparable to Felo AI Search but bundled within a broader privacy browser and ad platform.
Direct peers
- Phind: Phind is an AI search engine purpose-built for developers and technical questions, comparable to Felo's developer/API-led AI search positioning.
- Perplexity AI: Perplexity is the leading AI-native answer/search engine with source citations, directly comparable to Felo AI Search. Both target knowledge workers needing real-time, cited answers and offer Pro/freemium tiers.
- Andi: Andi is an AI search assistant providing conversational, cited answers — a direct smaller-scale competitor to Felo AI Search for everyday research workflows.
- DeepL: DeepL is a leading AI translation service with strong European/Asian language quality, directly comparable to Felo Shunnyaku's real-time interpretation offering for business use.
- Exa: Exa (formerly Metaphor) is a neural/search API for AI applications, directly comparable to Felo's Search API and developer-facing search infrastructure offering.
- You.com: You.com is an AI search and chat platform offering cited answers, custom apps, and developer APIs — closely overlapping Felo's search + API platform combination.
Others
- Mistral AI: Mistral is a foundation-model provider with API and on-prem offerings, comparable to the model-side of Felo's API platform and a potential future supplier or competitor for European enterprise AI search.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
Felo social profiles
Digital presenceFelo financial estimates
Financial estimateRevenue estimate
Valuation estimate
Felo leadership team
Management profileNumber of profiles
Profiles2 records
Felo funding detail
Funding detailFunding overview
Funding rounds1 record
Investors2 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Felo M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Felo
What does Felo do?
Felo develops and provides a multilingual AI search engine and productivity platform that combines real-time AI search with source citation, simultaneous interpretation, AI-powered document collaboration, AI presentation generation, and a unified API platform. The platform is built on Retrieval-Augmented Generation (RAG) architecture and serves both individual developers and knowledge workers through self-serve subscriptions and Japanese enterprises through custom direct-sales contracts.
Is Felo a public or private company?
Felo is a private company. It is classified as venture growth investor backed and is currently operating.
When was Felo founded?
Felo was founded in 2024. It employs 11 to 50 people.
Where is Felo based?
Felo is headquartered in Tokyo, Japan, in the Asia region.
How does Felo make money?
Three revenue lines are on record. API Subscription Plans are the primary driver. The others are usage-based Credits and enterprise Custom Solutions.
Who are Felo's main competitors?
Broad incumbents on record are Anthropic, OpenAI and Brave Search. Direct peers are Phind, Perplexity AI, Andi, DeepL, Exa and You.com. Mistral AI is listed as an others.
Does Felo have an API?
Yes. Felo OpenAPI provides LLM APIs alongside tool APIs for web search, X search, page extraction, PPT generation, mindmaps, images, LiveDocs, and real office deliverables. Supports OpenAI-compatible Chat Completions, Anthropic-compatible Messages, Responses API, and SuperAgent streaming conversations. Offers model access to Claude Opus 4.8, Claude Sonnet 4.6, Claude Haiku 4.5, GPT-5.6 Sol, GPT-5.6 Terra, Grok 4.5, and others. Features Search API, X Search API, Web Fetch API, YouTube Subtitling API, Mindmap API, LiveDoc API, SuperAgent API, and PPT Task API. Available globally with free tier (200 credits daily) and paid plans starting at $14.99/month (15,000 credits/month). Developer documentation is at openapi.felo.ai/docs.
What industry is Felo in?
Felo's product category is Multilingual AI Search and Productivity Platform. Its primary akta.pro industry code is HDAEAGAH, Enterprise Search, Indexing & Content Discovery. Its NAICS code is 519290 and its SIC code is 7372.