Mistral AI
Small (~100)
Scale AI
Large (~1,200)
Best For
Mistral AI
Best for: Researchers who want to build open-weight models at a fast-moving European AI lab
Scale AI
Best for: Ambitious builders who want critical AI infrastructure work serving top-tier clients
Ratings
Mistral AIScale AI
4.0
3.5
Overall
3.6
2.7
Work-Life Balance
4.2
2.9
Culture & Values
4.0
3.5
Comp & Benefits
3.8
2.8
Senior Mgmt
3.5
3.6
Career Opps
👍 80% Recommend
👤 85% CEO Approval (Arthur Mensch)
👍 56% Recommend
👤 60% CEO Approval (Alexandr Wang)
Culture Values
Mistral AI only
🤝 Flat Hierarchy🧩 Wears Many Hats🔓 Open Source
Scale AI only
🎯 Direct Product Impact🌱 Learning & Growth
Shared
🚀 Ship Fast & Iterate⚙️ Engineering-Driven
Pros & Cons
Mistral AI
- Small team punching way above weight — Mixtral, Mistral Large
- European AI champion with strong research DNA
- Very early-stage — processes are minimal
- Paris-centric with limited remote options
Scale AI
- Building critical AI data infrastructure used by OpenAI, Meta, Microsoft, and the US government
- Strong compensation for engineers — competitive base + equity
- Work-life balance rated 2.7/5 — long hours common during client deadlines
- Culture and values scored 2.9/5 — inconsistent management quality
Bottom Line
Mistral AI
Choose Mistral if you want small-team impact at Europe's top AI lab — but expect minimal process and Paris-first culture.
Scale AI
Choose Scale AI if you want to build data infrastructure for OpenAI and the US government — but expect long hours and inconsistent management.
Open Roles
Mistral AI — 150 jobs
💻 Engineering
51
💼 Sales / GTM
14
🧠 ML / AI
13
⚖️ Legal
11
📋 Product
8
👤 HR / People
7
📣 Marketing
6
⚙️ Operations
4
💰 Finance
3
📊 Data
2
🎨 Design
2
Scale AI — 175 jobs
💻 Engineering
64
🧠 ML / AI
25
📋 Product
16
💼 Sales / GTM
14
⚙️ Operations
7
⚖️ Legal
5
📣 Marketing
4
📊 Data
2
💰 Finance
2
👤 HR / People
2
🎨 Design
1
🎧 Support
1
Summary
Mistral AI scores 4.0/5.0 on Glassdoor with a 3.6 work-life balance rating. Scale AI scores 3.5/5.0 overall with a 2.7 WLB. That’s a 0.5-point gap on overall satisfaction.
Both companies share these culture values: Ship Fast & Iterate, Engineering-Driven. Mistral AI also emphasizes Flat Hierarchy, Wears Many Hats, Open Source. Scale AI also emphasizes Direct Product Impact, Learning & Growth.
On the hiring front, Mistral AI has 150 open roles and Scale AI has 175 open roles.