Anyscale
Medium (~250)
Vast AI
Small (~30)
Best For
Anyscale
Best for: Distributed systems and ML infrastructure engineers who want to work on the Ray open-source project and commercial AI infra
Vast AI
Best for: Scrappy generalists who want a front-row seat to the AI compute revolution
Ratings
AnyscaleVast AI
4.2
5.0
Overall
3.8
3.8
Work-Life Balance
4.2
5.0
Culture & Values
4.1
5.0
Comp & Benefits
4.0
5.0
Senior Mgmt
4.0
5.0
Career Opps
👍 84% Recommend
👤 87% CEO Approval (Robert Nishihara)
👍 100% Recommend
👤 100% CEO Approval (Jake Cannell)
Culture Values
Anyscale only
🔓 Open Source
Vast AI only
🧩 Wears Many Hats💎 Strong Comp & Equity
Shared
⚙️ Engineering-Driven🤝 Flat Hierarchy🚀 Ship Fast & Iterate
Pros & Cons
Anyscale
- Brilliant colleagues from top companies
- Direct impact on AI/ML ecosystem
- Context switching between projects
- Documentation can lag behind development
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
Anyscale
Choose Anyscale if you want to work on Ray — the dominant compute framework for AI workloads — with strong engineering culture and open-source DNA.
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
Anyscale
No open roles currently listed
Vast AI — 9 jobs
💻 Engineering
6
🧠 ML / AI
2
Summary
Anyscale scores 4.2/5.0 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 0.8-point gap on overall satisfaction.
Both companies share these culture values: Engineering-Driven, Flat Hierarchy, Ship Fast & Iterate. Anyscale also emphasizes Open Source. Vast AI also emphasizes Wears Many Hats, Strong Comp & Equity.
On the hiring front, Anyscale has 0 open roles and Vast AI has 9 open roles.