Fundraising Fox
/Companies
Sign in

Helicone

AcquiredYC W23

San Francisco, US · Founded 2023 · 5 employees · 9 known investors

Find your way into Helicone

Sign up to see every warm intro you have to Helicone

  • Paths you didn't know you had: your email and LinkedIn already hold routes to the Helicone team. We find them for you
  • 2nd- and 3rd-degree connections: the friend-of-a-friend routes that take hours to manually find through your inbox or LinkedIn
  • Answers now, not in days: momentum is everything in a raise. Skip asking around whether someone knows someone

Days of research, done the moment you sign in, with every route ranked by how warm it is.

Sign up with GoogleAlready have an account? Log in

Helicone provides infrastructure for AI companies to route, debug, and analyze their applications. The platform serves developers and organizations building AI systems.

Also known as Prompt Zero · Prompt Zero, TableTalk, Valyr · TableTalk · Valyr

AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise SoftwareAIOpsAnalyticsOpen SourceUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (W23)

Helicone was founded in 2023 by Justin Torre, Barak Oshri, and Scott Nguyen.

JTJustin Torre
Justin TorreFounder / CEO2023–2026He previously worked as a developer evangelist and teacher at Apple, and brings over five years of experience building and working on various software projects.
BOBarak Oshri
Barak OshriCo-Founder2022–2023He previously worked as a machine learning engineer at Sisu Data on enterprise ML systems, conducted research at Stanford AI Lab, and holds BS and MS degrees from Stanford, where he also served as a teaching assistant.
SNScott Nguyen
Scott NguyenCo-Founder (YC W23)2022–2024Scott Nguyen is the founder of Helicone, which provides infrastructure for AI companies to route, debug, and analyze their applications.
CG
Cole GottdankFounder
KV
Kavin ValliSoftware Engineer
CL
Connor LoiSoftware Engineer
LL
Lina LamFounding Designerformer
TM
Tino MarquesFounding Engineerformer

Investors · 9

Flexcap Ventureslisted by Flexcap VenturesNew York

How we know: Flexcap Ventures's portfolio page · a partner's Signal profile · Y Combinator's founder network · Not right? Tell us

Y Combinatorlisted by Y CombinatorSan Francisco · $500K

How we know: the Y Combinator directory · funding news · open dataset · 5k.vc investor directory · Not right? Tell us

Andreessen HorowitzreportedMenlo Park · $500K – $50M

How we know: Y Combinator's founder network · Not right? Tell us

Coughdrop CapitalreportedSeattle · $40K – $100K

How we know: Y Combinator's founder network · Not right? Tell us

Greylock PartnersreportedSan Francisco · $100K – $10M

How we know: Y Combinator's founder network · Not right? Tell us

HNVRreportedPortola Valey

How we know: Y Combinator's founder network · Not right? Tell us

SaxeCap AdvisorsreportedSan Francisco

How we know: Y Combinator's founder network · Not right? Tell us

Sequoia CapitalreportedMenlo Park · $100K – $50M

How we know: Y Combinator's founder network · Not right? Tell us

Street Global Venture Capitalreported

How we know: Y Combinator's founder network · Not right? Tell us

Funding

SEC filings, press & company announcements

Source: company announcements and press reports — follow each round's link for the claim.

Founder mafia

2 people who came through Helicone went on to found or lead other companies.

Barak OshriFounderFounded NestmedConnor LoiSoftware Engineer InternFounded Replicas

Related companies · 10

OpenRouterOpenRouter operates an AI gateway that allows developers to access and compare hundreds of language models from multiple providers in a single platform. The service eliminates vendor lock-in while offering improved pricing, uptime, and reliability for companies and developers.
Sepal AISepal AI generates training and evaluation datasets for AI models at scale, working with leading AI research labs and enterprises to improve model performance on real-world tasks.
OpenAIOpenAI is an AI research and deployment company focused on developing artificial general intelligence (AGI) with emphasis on safety and beneficial outcomes for humanity.
OllamaOllama provides a platform for building with and running open-source language models locally and in the cloud. It enables developers to quickly deploy and access models like Claude Code and OpenClaw.
DataCampDataCamp is a learning platform for teams that teaches data and AI skills through hands-on coursework accessible via web browser and mobile app. It serves enterprise customers and development teams seeking to build technical capabilities.
Hudson Labs (formerly Bedrock AI)Hudson Labs provides AI-powered analysis software for investor relations teams to monitor peer disclosures, prepare earnings Q&A, and track messaging themes. The platform serves institutional investors, buy-side firms, and public company IR departments.
Hugging FaceHugging Face is a collaboration platform that hosts and provides access to machine learning models, datasets, and applications. It offers both open-source tools for the ML community and paid compute and enterprise solutions for teams building AI applications.
TypaTypa is a content creation and management platform powered by AI that helps teams draft, refine, and publish social media posts and written content. The tool serves marketing teams and content creators by automating research and drafting while maintaining brand voice and editorial control.
LiteLLMLiteLLM provides an AI gateway that simplifies access to over 100 large language models through a unified OpenAI-compatible interface, with built-in features for fallbacks, spend tracking, and load balancing. The platform serves developers and engineering teams integrating multiple LLM providers into their applications.
LLM Statsllm-stats.com provides open, reproducible evaluation and benchmarking infrastructure for large language models and AI systems. The platform aggregates 200+ benchmarks and enables performance comparisons across frontier AI models to support informed decision-making by researchers, enterprises, and model developers.

Companies working in the same space as Helicone.

Legal entities · 1

corporate structure
Helicone, Inc.

In the news

Helicone - Open-source observability platform for generative AIycombinator.com · Feb 2023

Frequently asked questions

What does Helicone do?
Helicone provides infrastructure for AI companies to route, debug, and analyze their applications. The platform serves developers and organizations building AI systems.
Who founded Helicone?
Helicone was founded by Justin Torre, Barak Oshri, Scott Nguyen in 2023.
Who are Helicone's investors?
Helicone's investors include Flexcap Ventures, Y Combinator, Andreessen Horowitz, Coughdrop Capital, Greylock Partners, HNVR, SaxeCap Advisors, Sequoia Capital and 1 more.
Where is Helicone headquartered?
Helicone is headquartered in San Francisco, US.