Brex
Large (~1,600)
Mistral AI
Small (~100)
Best For
Brex
Best for: Engineers who want to build AI-powered fintech at massive scale with smart colleagues
Mistral AI
Best for: Researchers who want to build open-weight models at a fast-moving European AI lab
Ratings
BrexMistral AI
4.0
4.0
Overall
3.9
3.6
Work-Life Balance
3.8
4.2
Culture & Values
4.0
4.0
Comp & Benefits
3.5
3.8
Senior Mgmt
3.6
3.5
Career Opps
👍 77% Recommend
👤 71% CEO Approval (Pedro Franceschi)
👍 80% Recommend
👤 85% CEO Approval (Arthur Mensch)
Culture Values
Brex only
🎯 Direct Product Impact🌱 Learning & Growth🪟 Transparent
Mistral AI only
🤝 Flat Hierarchy🧩 Wears Many Hats🔓 Open Source
Shared
🚀 Ship Fast & Iterate⚙️ Engineering-Driven
Pros & Cons
Brex
- Innovation-driven culture with incredibly smart, passionate, and supportive colleagues
- Strong benefits and time off actively encouraged with flexible scheduling
- Culture of overworking — many departments understaffed relative to workload expectations
- Multiple rounds of layoffs in recent years have created uncertainty and morale challenges
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
Bottom Line
Brex
Choose Brex if you want to build AI-powered fintech at massive scale with smart colleagues — but expect intense workloads and some organizational instability from recent layoffs.
Mistral AI
Choose Mistral if you want small-team impact at Europe's top AI lab — but expect minimal process and Paris-first culture.
Open Roles
Brex — 235 jobs
💼 Sales / GTM
72
💻 Engineering
49
📋 Product
18
🎨 Design
15
📣 Marketing
14
👤 HR / People
13
📊 Data
10
⚖️ Legal
6
💰 Finance
3
⚙️ Operations
3
🎧 Support
2
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
Summary
Brex scores 4.0/5.0 on Glassdoor with a 3.9 work-life balance rating. Mistral AI scores 4.0/5.0 overall with a 3.6 WLB. They’re tied on overall satisfaction.
Both companies share these culture values: Ship Fast & Iterate, Engineering-Driven. Brex also emphasizes Direct Product Impact, Learning & Growth, Transparent. Mistral AI also emphasizes Flat Hierarchy, Wears Many Hats, Open Source.
On the hiring front, Brex has 235 open roles and Mistral AI has 150 open roles.