OpenAI
Large (~3,500)
Vast AI
Small (~30)
Best For
OpenAI
Best for: Professionals interested in OpenAI
Vast AI
Best for: Scrappy generalists who want a front-row seat to the AI compute revolution
Ratings
OpenAIVast AI
4.5
5.0
Overall
3.6
4.5
Work-Life Balance
4.6
5.0
Culture & Values
4.5
5.0
Comp & Benefits
4.3
5.0
Senior Mgmt
4.3
5.0
Career Opps
👍 90% Recommend
👤 95% CEO Approval (CEO)
👍 100% Recommend
👤 100% CEO Approval (Jake Cannell)
Culture Values
OpenAI only
🌱 Learning & Growth🤖 Ethical AI / Safety🎯 Direct Product Impact
Vast AI only
🤝 Flat Hierarchy🧩 Wears Many Hats
Shared
⚙️ Engineering-Driven🚀 Ship Fast & Iterate💎 Strong Comp & Equity
Pros & Cons
OpenAI
- Cutting-edge frontier AI research with world-class colleagues
- Elite compensation — top-tier TC and equity packages
- High-intensity environment — long hours and intense pace are the norm
- Internal politics and rapid org changes as the company scales
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
OpenAI
OpenAI — check Glassdoor for detailed reviews.
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
OpenAI — 624 jobs
💻 Engineering
292
💼 Sales / GTM
48
📋 Product
32
🧠 ML / AI
31
📊 Data
27
📣 Marketing
23
⚙️ Operations
17
⚖️ Legal
15
🎨 Design
11
💰 Finance
11
👤 HR / People
8
🎧 Support
4
Vast AI — 10 jobs
💻 Engineering
5
🧠 ML / AI
2
📊 Data
1