Feyn
Feyn is an end-to-end service for building custom models from your data. Our models learn how your product actually works, handle the rare cases that are costly to get wrong, and grow sharper the longer they run. Our engineers start by reviewing your current setup and agreeing on what quality means for your workflow. Then we train a model on your data. Once it ships, new cases feed back into training so the model keeps improving. The result is a model that runs faster, improves with use, and is
Y Combinator
yc-company-directory #352Feyn is an end-to-end service for building custom models from your data. Our models learn how your product actually works, handle the rare cases that are costly to get wrong, and grow sharper the longer they run. Our engineers start by reviewing your current setup and agreeing on what quality means for your workflow. Then we train a model on your data. Once it ships, new cases feed back into training so the model keeps improving. The result is a model that runs faster, improves with use, and is
sourceFeyn is classified as AI infrastructure from source descriptions and fund-directory context. Similar companies below are ranked from offline product facets and meaningful description overlap; category and source affiliation can only strengthen an existing product match. For lookup-created rows, the profile starts as pending enrichment until deeper source collection runs.
Local clusters rerank extracted product concepts and description terms. The generated graph remains the fallback for sparse descriptions: offline reciprocal product-similarity graph: extracted concepts + description terms + bounded category/affiliation boosts. Minimum fallback score: 0; max competitors: 6.
Companies similar to Feyn
A deterministic local cluster built from offline product facets and meaningful description terms. Category and selected-institution affiliation provide bounded tie-breaks. Open any peer to continue exploring its cluster.
Foaster
match 62Foaster is building the AI-native McKinsey, starting with AI transformation. We deploy AI agents that interview a company's employees at scale, map how work actually gets done, identify bottlenecks and AI opportunities, and draft a transformation roadmap in just 2 weeks. Expert consultants review the final outputs, add judgment where it matters, and feed their corrections back into the system. We believe current AI models already have the capabilities required to automate most of the work consul
shared product terms: model, actually, start, review; shared product theme: workflow automation; shared affiliation: Y Combinator
Godela
match 60What if every experiment you wanted to run could be modeled using AI? Godela is an AI-powered physics engine that gives engineers faster, cheaper replacement to simulations and physical prototypes. No set up, no wait. Just ask—and get simulation quality result.
shared product terms: model, run, engineer, what; same category: AI infrastructure; shared affiliation: Y Combinator
Yarn
match 54Yarn uses AI to help founders, salespeople, and marketers make product and sales videos. Teams are using Yarn to make sales collateral, launch videos, use-case demos, training guides, and feature updates for Twitter and LinkedIn. No video experience needed and everything looks great out-of-the-box – think Notion, Linear, or Stripe-quality – but branded for your team. The magic really comes from AI (TTS, CV, LLMs) – so you can zip through 5x faster than a Loom.
shared extracted concept terms: case; shared product terms: case, quality, train, so; same category: AI infrastructure; shared affiliation: Y Combinator
Dailybot
match 54Dailybot is the coordination platform for software teams where people and AI agents work side by side. As engineering teams increasingly operate alongside multiple AI agents — coding agents, incident responders, research assistants — the gap between what's being worked on and what the team can actually see has become a critical problem. Dailybot closes that gap. Teams use Dailybot to run async standups, check-ins, retros, and custom workflows directly inside Slack, Microsoft Teams, Google Chat,
shared product terms: engineer, what, actually, run; shared product theme: workflow automation; shared affiliation: Y Combinator
Ficra
match 52Ficra enables product teams to ship higher quality releases, faster. Ficra is the source of truth for every product screen and user flow, giving companies real-time visibility into what their users actually see in their live product. Ficra's AI provides a live, visual map of your users’ journeys: every screen, flow, A/B test, push notification and email. With Ficra, product teams no longer waste 25% of their time auditing complex user flows to assess product quality and find the blind spots in f
shared product terms: actually, longer, what, quality; same category: AI infrastructure; shared affiliation: Y Combinator
Datasaur
match 52Datasaur builds intelligent, optimized, human-centric LLM/NLP tools. If you're still using Excel or maintaining your own in-house tools, Datasaur can offer you significant cost-savings and improve the quality of your training data. We provide tools custom-built for power users. Our built-in intelligence helps augment your human labelers and avoid costly mistakes; our workforce management tool allows you to assign projects to and cross-validate the results from multiple labelers to ensure you can
shared product terms: improve, quality, train, custom; same category: AI infrastructure; shared affiliation: Y Combinator