Mercor
Small (~200)
Perplexity AI
Mid (~500)
Best For
Mercor
Best for: Engineers who want to build AI hiring infrastructure at a $10B rocketship with extreme ownership and MIT-founder energy
Perplexity AI
Best for: Builders who thrive on speed and want massive user-facing impact at a rocketship
Ratings
MercorPerplexity AI
3.9
4.7
Overall
3.9
3.3
Work-Life Balance
3.6
4.8
Culture & Values
4.0
4.5
Comp & Benefits
3.5
4.5
Senior Mgmt
3.7
4.2
Career Opps
👍 74% Recommend
👤 82% CEO Approval (Brendan Foody)
👍 92% Recommend
👤 95% CEO Approval (Aravind Srinivas)
Culture Values
Mercor only
🤝 Flat Hierarchy
Perplexity AI only
🎯 Direct Product Impact🌱 Learning & Growth
Shared
🚀 Ship Fast & Iterate⚙️ Engineering-Driven💎 Strong Comp & Equity
Pros & Cons
Mercor
- Massive impact at an AI company growing at breakneck speed
- Top-tier compensation with strong equity at $10B valuation
- Intense 9/9/6 work schedule — long hours are the norm
- Work-life balance is a real sacrifice at this stage
Perplexity AI
- Fastest-growing AI product — real users, real revenue, genuine product-market fit
- Small team, massive impact per engineer — your work ships to millions quickly
- Startup intensity — expect long hours and high expectations
- Growing pains as the team scales — roles and responsibilities shift frequently
Bottom Line
Mercor
Choose Mercor if you want outsized impact on AI-era hiring at a tiny, fast-moving team — but the 9/9/6 schedule is real, and work-life balance is genuinely sacrificed for speed.
Perplexity AI
Choose Perplexity if you want the fastest-growing AI product and huge per-engineer impact — but expect startup intensity.
Open Roles
Mercor — 49 jobs
💻 Engineering
20
🧠 ML / AI
6
💼 Sales / GTM
5
👤 HR / People
3
📊 Data
2
📣 Marketing
2
📋 Product
2
🎨 Design
1
⚙️ Operations
1
Perplexity AI — 74 jobs
💻 Engineering
37
🧠 ML / AI
8
📊 Data
5
⚖️ Legal
4
📣 Marketing
3
⚙️ Operations
3
💼 Sales / GTM
2
🎧 Support
2
👤 HR / People
1
📋 Product
1
Summary
Mercor scores 3.9/5.0 on Glassdoor with a 3.9 work-life balance rating. Perplexity AI scores 4.7/5.0 overall with a 3.3 WLB. That’s a 0.8-point gap on overall satisfaction.
Both companies share these culture values: Ship Fast & Iterate, Engineering-Driven, Strong Comp & Equity. Mercor also emphasizes Flat Hierarchy. Perplexity AI also emphasizes Direct Product Impact, Learning & Growth.
On the hiring front, Mercor has 49 open roles and Perplexity AI has 74 open roles.