Cerebras Systems
Large (~700)
Vast AI
Small (~30)
Best For
Cerebras Systems
Best for: Hardware and systems engineers who want to build the world's fastest AI chip at a newly public company
Vast AI
Best for: Scrappy generalists who want a front-row seat to the AI compute revolution
Ratings
Cerebras SystemsVast AI
4.0
5.0
Overall
3.8
3.8
Work-Life Balance
4.1
5.0
Culture & Values
4.0
5.0
Comp & Benefits
3.8
5.0
Senior Mgmt
3.8
5.0
Career Opps
👍 80% Recommend
👤 84% CEO Approval (Andrew Feldman)
👍 100% Recommend
👤 100% CEO Approval (Jake Cannell)
Culture Values
Cerebras Systems only
🌱 Learning & Growth🎯 Direct Product Impact
Vast AI only
🚀 Ship Fast & Iterate🤝 Flat Hierarchy🧩 Wears Many Hats💎 Strong Comp & Equity
Shared
⚙️ Engineering-Driven
Pros & Cons
Cerebras Systems
- Collaborative culture with strong mentorship
- Autonomy in small self-managed teams
- Top-down decisions with aggressive timelines
- Recent layoffs and workload concerns
Vast AI
- Front-row seat to the AI compute revolution — demand for GPU cloud is surging
- Strong compensation and generous equity stakes for a bootstrapped startup
- Processes are still being defined — expect ad hoc workflows
- Intense workload — the team explicitly values high output
Bottom Line
Cerebras Systems
Choose Cerebras if you want to work on wafer-scale AI chips with collaborative mentorship and autonomy — but expect aggressive timelines driven from the top and recent organizational instability post-IPO.
Vast AI
Choose Vast AI if you want perfect Glassdoor scores and generous equity at a tiny GPU marketplace — but expect startup chaos.
Open Roles
Cerebras Systems — 93 jobs
💻 Engineering
58
🧠 ML / AI
10
💰 Finance
5
📋 Product
5
📣 Marketing
2
⚙️ Operations
2
🎨 Design
1
⚖️ Legal
1
Vast AI — 9 jobs
💻 Engineering
6
🧠 ML / AI
2
Summary
Cerebras Systems scores 4.0/5.0 on Glassdoor with a 3.8 work-life balance rating. Vast AI scores 5.0/5.0 overall with a 3.8 WLB. That’s a 1.0-point gap on overall satisfaction.
Both companies share these culture values: Engineering-Driven. Cerebras Systems also emphasizes Learning & Growth, Direct Product Impact. Vast AI also emphasizes Ship Fast & Iterate, Flat Hierarchy, Wears Many Hats, Strong Comp & Equity.
On the hiring front, Cerebras Systems has 93 open roles and Vast AI has 9 open roles.