Mistral AI
Small (~100)
MongoDB
Large (~5,500)
Best For
Mistral AI
Best for: Researchers who want to build open-weight models at a fast-moving European AI lab
MongoDB
Best for: Professionals interested in MongoDB
Ratings
Mistral AIMongoDB
4.0
4.0
Overall
3.6
3.8
Work-Life Balance
4.2
4.1
Culture & Values
4.0
4.0
Comp & Benefits
3.8
3.8
Senior Mgmt
3.5
3.8
Career Opps
👍 80% Recommend
👤 85% CEO Approval (Arthur Mensch)
👍 80% Recommend
👤 84% CEO Approval (CEO)
Culture Values
Mistral AI only
🚀 Ship Fast & Iterate🤝 Flat Hierarchy🧩 Wears Many Hats
MongoDB only
🌱 Learning & Growth💎 Strong Comp & Equity🎯 Direct Product Impact
Shared
⚙️ Engineering-Driven🔓 Open Source
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
MongoDB
- World-class enablement — best training programs many employees have encountered
- Competitive pay with strong equity, especially for senior roles
- No 401k match and culture has gotten more political at scale
- Work-life balance is team-dependent — some teams have long hours expectations
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.
MongoDB
MongoDB — check Glassdoor for detailed reviews.
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
MongoDB — 428 jobs
💼 Sales / GTM
171
💻 Engineering
133
📋 Product
32
📣 Marketing
14
⚙️ Operations
9
👤 HR / People
8
💰 Finance
6
🧠 ML / AI
4
📊 Data
2
Summary
Mistral AI scores 4.0/5.0 on Glassdoor with a 3.6 work-life balance rating. MongoDB scores 4.0/5.0 overall with a 3.8 WLB. They’re tied on overall satisfaction.
Both companies share these culture values: Engineering-Driven, Open Source. Mistral AI also emphasizes Ship Fast & Iterate, Flat Hierarchy, Wears Many Hats. MongoDB also emphasizes Learning & Growth, Strong Comp & Equity, Direct Product Impact.
On the hiring front, Mistral AI has 150 open roles and MongoDB has 428 open roles.