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Open Source AI startups (2026)

20 open source ai startups tracked, with the largest concentration in US. Total tracked funding: $8.3B.

🚀
Startups
20
💰
Total raised
$8.3B
🌐
Countries
6
🎟️
Active deals
0

Funding by year — Open Source AI

2023 → 2026
$763M
'23
$1.5B
'24
$3.7B
'25
$830M
'26

Top countries

By startup count

Stage breakdown

Latest round type
  • Seed 5
  • Series B 4
  • Series A 2
  • Series D 1
  • Debt 1

Top investors backing Open Source AI

See all →

Top Open Source AI startups by score

View all 20 →
# Company Location Funding Score
1 Cline Remote, US $4M
76
2 Liquid AI Boston, US $300M
75
3 Imbue San Francisco, US $232M
75
4 Mistral AI Paris, FR $6.3B
66
5 Hugging Face New York, US $470M
65
6 Qdrant Berlin, DE $85M
65
7 LanceDB San Francisco, US $41.5M
65
8 Chroma San Francisco, US $20.3M
65
9 Physical Intelligence San Francisco, US $735M
63
10 OpenCode Remote, US
58
11 Refact.ai Amsterdam, NL
58
12 Kilo Code Remote, US
58

Recent rounds in Open Source AI

All rounds →
Date Startup Round Amount
Mar 2026 Mistral AI Debt $830M
Sep 2025 Mistral AI Series C $2B
Sep 2025 Mistral AI Series c $1.7B
Aug 2024 Hugging Face Series d $235M
Jun 2024 Mistral AI Series B $640M
Jun 2024 Mistral AI Series b $645M
Dec 2023 Mistral AI Series A $415M
Aug 2023 Hugging Face Series d $235M

All Open Source AI startups

Page 1
Cline logo

Cline

US est. 2024

Open-source autonomous AI coding agent for VS Code — bring your own model

Raised
$4M
Stage
Seed
76
Liquid AI logo

Liquid AI

US est. 2023

Efficient general-purpose foundation models built for edge, on-device, and cloud deployment at every scale.

Raised
$300M
Stage
S-B
75
Imbue logo

Imbue

US est. 2021

Tools to empower humans in the AI age with reliable, collaborative coding agents.

Raised
$232M
Stage
S-B
75
Mistral AI logo

Mistral AI

Verified
FR est. 2023

Open and efficient foundation models

Raised
$6.3B
Stage
Debt
66
Hugging Face logo

Hugging Face

US est. 2016

The AI community building the future of machine learning.

Raised
$470M
Stage
S-D
65
Chroma logo

Chroma

US est. 2022

Open-source search infrastructure for AI with vector, full-text, regex, and metadata search.

Raised
$20.3M
Stage
Seed
65
Qdrant logo

Qdrant

DE est. 2021

High-performance vector search engine built in Rust for production-grade AI retrieval.

Raised
$85M
Stage
S-B
65
LanceDB logo

LanceDB

US est. 2021

AI-native multimodal lakehouse for vector search, training data, and retrieval.

Raised
$41.5M
Stage
S-A
65
Physical Intelligence logo

Physical Intelligence

Verified
US est. 2023

Foundation models for physical world AI

Raised
$735M
Stage
S-B
63
OpenCode logo

OpenCode

US est. 2024

Open-source terminal AI coding agent — Aider alternative with multi-model support

58
Refact.ai logo

Refact.ai

NL est. 2022

Self-hosted AI coding assistant — run on your own infra, own your data

Stage
Seed
58
Kilo Code logo

Kilo Code

US est. 2024

Structured AI coding modes for VS Code — architect, code, and review separately

Stage
Seed
58
CrewAI logo

CrewAI

US est. 2024

Framework for orchestrating role-playing autonomous AI agents

Raised
$18M
Stage
Seed
51
Numerai logo

Numerai

US est. 2015

The hardest data science tournament on the planet

Raised
$9.7M
Stage
S-A
40
Aider logo

Aider

US est. 2023

AI pair programming in your terminal that edits your codebase and commits changes via Git.

40
Baichuan AI logo

Baichuan AI

CN est. 2023

Empowering the world with knowledge and professional services through breakthrough language AI.

33
Falcon LLM (Technology Innovation Institute) logo

Falcon LLM (Technology Innovation Institute)

AE

Making advanced AI accessible and available to everyone, everywhere through a family of powerful, efficient, and ethical large language models.

15
Kyutai logo

Kyutai

FR

An open-science AI lab dedicated to building and democratizing Artificial General Intelligence through open research.

15
Tenstorrent logo

Tenstorrent

Tenstorrent provides high-performance AI compute solutions, from cards and workstations to scale-out servers, powered by flexible, open-source IP.

12
Tabby logo

Tabby

An open-source, self-hosted AI coding assistant for secure and efficient development.

12