Building a $4 Billion AI Infra Company | Benny Chen, cofounder of Fireworks AI

Infinite Curiosity Pod with Prateek Joshi

Infinite Curiosity Pod with Prateek Joshi
Building a $4 Billion AI Infra Company | Benny Chen, cofounder of Fireworks AI
Feb 06, 2026
Prateek Joshi

Benny Chen is the cofounder of Fireworks AI, an AI infrastructure platform. They have raised $327M in funding from Benchmark, Sequoia, Lightspeed, Index, and others. 

Benny's favorite book: Principles (Author: Ray Dalio)

(00:01) Intro and why AI infrastructure is having a moment
(00:06) Training vs inference: what’s working and where the real bottlenecks are
(01:25) Why inference is the hard problem in production
(03:30) What breaks at scale when AI systems hit real users
(05:29) GPUs, hardware constraints, and why power is now a first-class concern
(06:02) What you’re actually paying for in inference
(07:21) Reliability, compliance, and enterprise expectations
(09:49) Training and inference capacity: when they blur together
(11:06) How to make inference fast in practice
(13:06) System design choices behind modern inference platforms
(15:28) Inference economics and cost tradeoffs
(18:02) When fine-tuning actually makes sense
(21:58) What “best model” really means for real companies
(24:25) Production LLM architectures that actually work
(27:46) Building an AI infra company customers can trust
(29:27) Shipping fast without breaking reliability
(31:14) Go-to-market lessons for infra startups
(34:17) Where inference platforms are heading next
(36:32) Rapid fire round

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Where to find Benny Chen: 

LinkedIn: https://www.linkedin.com/in/benny-yufei-chen-2238575a/

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Where to find Prateek Joshi: 

Website: https://prateekj.com 
Research Column: https://www.infrastartups.com
LinkedIn: https://www.linkedin.com/in/prateek-joshi-infinite
X: https://x.com/prateekj

Episode Artwork Building a $4 Billion AI Infra Company | Benny Chen, cofounder of Fireworks AI 41:45 Episode Artwork Building AI Employees | Surojit Chatterjee, CEO of Ema 40:51 Episode Artwork Passwords Are Broken: AI Agents Need Identity | Rishi Bhargava, cofounder of Descope 37:40 Episode Artwork AI Agents Are Taking Over Infra | Gou Rao, CEO of NeuBird 34:55 Episode Artwork Building a Visual AI Platform | Brian Moore, CEO of Voxel51 47:38 Episode Artwork Building an AI Mathematician | Carina Hong, CEO of Axiom Math 45:01 Episode Artwork From 0 to $15M ARR in 3 months | Mukund Jha, CEO of Emergent 42:05 Episode Artwork Diffusion LLMs - The Fastest LLMs Ever Built | Stefano Ermon, cofounder of Inception Labs 39:09 Episode Artwork LLMs, Vibe Coding, and Security | Idan Plotnik, CEO of Apiiro 37:36 Episode Artwork Infra Investing | Astasia Myers, GP at Felicis 52:09 Episode Artwork Putting AI On-Call for Humans | Spiros Xanthos, CEO of Resolve AI 39:14 Episode Artwork Co-creator of GraphQL and Founder of Dagster Labs - Nick Schrock 51:55 Episode Artwork AI Layer for Data Security | Rehan Jalil, CEO of Securiti 41:43 Episode Artwork Building AI Agents for Knowledge Work | Alberto Rizzoli, CEO of V7 Labs 36:41 Episode Artwork AI for Physical Security | Dave Selinger, CEO of Deep Sentinel 48:54 Episode Artwork Building the Berkshire Hathaway of AI Services | Brennan Pothetes, CEO of Infinity Constellation 47:40 Episode Artwork Agentic Shift in Microservices | Mark Fussell, CEO of Diagrid 34:08 Episode Artwork Building the Android for Robots | Jan Liphardt, founder of OpenMind 46:43 Episode Artwork AI Infra for Long Context Model Training | Anna Patterson, founder of Ceramic AI 39:31 Episode Artwork Building an AI+Data Startup Studio | Tom Chavez, cofounder of super{set} 52:57 Episode Artwork Decentralized Data Foundry for AI | Rowan Stone, CEO of Sapien 38:22 Episode Artwork Converting Cameras into Autonomous AI Agents | Rish Gupta, CEO of Spot AI 38:50 Episode Artwork Are AI Phone Agents Ready for Prime Time? | Alex Levin, CEO of Regal 45:21 Episode Artwork What it Takes to Build a BI Platform | Colin Zima, CEO of Omni 40:07 Episode Artwork Building Billing Infrastructure for AI Companies | Alvaro Morales, CEO of Orb 38:21