Cerebras Systems
Large (~700)
OpenAI
Large (~3,500)
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
OpenAI
Best for: Engineers who want to build frontier AI models at the company defining the industry, with elite compensation
Ratings
Cerebras SystemsOpenAI
4.0
4.5
Overall
3.8
3.6
Work-Life Balance
4.1
4.6
Culture & Values
4.0
4.5
Comp & Benefits
3.8
4.3
Senior Mgmt
3.8
4.3
Career Opps
👍 80% Recommend
👤 84% CEO Approval (Andrew Feldman)
👍 90% Recommend
👤 95% CEO Approval (Sam Altman)
Culture Values
Cerebras Systems only
No unique values
OpenAI only
🚀 Ship Fast & Iterate💎 Strong Comp & Equity
Shared
⚙️ Engineering-Driven🌱 Learning & Growth🎯 Direct Product Impact
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
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
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.
OpenAI
High-intensity, mission-driven culture with world-class colleagues and top-tier comp — but expect long hours, rapid org changes, and internal politics as the company scales.
Open Roles
Cerebras Systems — 93 jobs
💻 Engineering
58
🧠 ML / AI
10
💰 Finance
5
📋 Product
5
📣 Marketing
2
⚙️ Operations
2
🎨 Design
1
⚖️ Legal
1
OpenAI — 655 jobs
💻 Engineering
317
💼 Sales / GTM
57
📋 Product
30
📊 Data
28
🧠 ML / AI
28
📣 Marketing
24
⚙️ Operations
17
⚖️ Legal
13
🎨 Design
10
👤 HR / People
9
💰 Finance
7
🎧 Support
4
Summary
Cerebras Systems scores 4.0/5.0 on Glassdoor with a 3.8 work-life balance rating. OpenAI scores 4.5/5.0 overall with a 3.6 WLB. That’s a 0.5-point gap on overall satisfaction.
Both companies share these culture values: Engineering-Driven, Learning & Growth, Direct Product Impact. OpenAI also emphasizes Ship Fast & Iterate, Strong Comp & Equity.
On the hiring front, Cerebras Systems has 93 open roles and OpenAI has 655 open roles.