YCW24· AI· DevtoolsOpenFoundry
The fastest developer experience for building on open source AI.
Founders
Not read from YC yet; the weekly run fills these in.
Same space
Competitors
Closest in what they build, same category.
MagnitudeS25Open source inference server for local modelsShared: developer tools, open source, infrastructureActive
Unsloth AIS24Open-Source Reinforcement Learning (RL) & Fine-tuning for LLMs.Shared: developer tools, open source, infrastructureActive
VocodeW23Open source Voice AIShared: developer tools, open sourceAcquired
AdenW20Open source agent generation frameworkShared: developer tools, infrastructureActive
ElementaryW22Open-source data observability for data teamsShared: developer tools, open sourceActive
Adjacent
Overlapping tags, a different niche.
HyperDXS22Open-source, dev-friendly observability.Shared: developer tools, open source, infrastructureAcquired
HelixDBX25The fastest & most scalable graph-vector database on the marketShared: developer tools, open source, infrastructureActive
HatchetW24The orchestration platform for teams who ship.Shared: developer tools, open source, infrastructureActive
RunAnywhereW26Fastest inference anywhere: open models on-prem, hosted or on-deviceShared: developer tools, open source, infrastructureActive
ManufactS25Cloud infrastructure for MCP servers and Claude / ChatGPT plugins.Shared: developer tools, open source, infrastructureActive
Also from W24 in AI
Batchmates in Winter 2024.
nCompass TechnologiesW24Optimize performance on GPUs - 10x fasterActive
TesseralW24The open source platform for managing identity in business softwareInactive
TrieveW24All-in-one API for search, RAG, & recommendationsAcquired
TuskW24AI agent that generates unit and integration testsInactive
Vibrant LabsW24Autonomously scaling environmentsActive
Zep AIW24Agent Context Is Hard. We Fixed It.Active
Outside YC
Similar companies on companies.fru.dev.
About OpenFoundry
OpenFoundry is an open source platform that helps engineers build, deploy, and scale their open source AI stack 10x faster. Ship your AI stack with just one line of code. You could think of us as an open source alternative to Hugging Face. Learn more and check out a demo of this in action in our Launch YC post: https://www.ycombinator.com/launches/KhY-openfoundry-developer-infrastructure-for-open-source-ai
San Francisco, CA, USA
OpenFoundry: questions
Which YC batch was OpenFoundry in?
OpenFoundry was in Y Combinator's Winter 2024 batch (W24).
Is OpenFoundry still active?
Y Combinator lists OpenFoundry as active.
Where is OpenFoundry based?
OpenFoundry lists San Francisco, CA, USA as its location on YC's directory.
Not affiliated with Y Combinator. From YC's public directory. Logos via logo.dev; trademarks belong to their owners.