Scale AI
Large (~1,200)
Writer
Mid (~400)
Best For
Scale AI
Best for: Ambitious builders who want critical AI infrastructure work serving top-tier clients
Writer
Best for: Professionals interested in Writer
Ratings
Scale AIWriter
3.5
3.5
Overall
2.7
2.7
Work-Life Balance
2.9
3.6
Culture & Values
3.5
3.5
Comp & Benefits
2.8
3.3
Senior Mgmt
3.6
3.3
Career Opps
👍 56% Recommend
👤 60% CEO Approval (Alexandr Wang)
👍 70% Recommend
👤 74% CEO Approval (CEO)
Culture Values
Scale AI only
🎯 Direct Product Impact🌱 Learning & Growth
Writer only
🔓 Open Source
Shared
⚙️ Engineering-Driven🚀 Ship Fast & Iterate
Pros & Cons
Scale AI
- Building critical AI data infrastructure used by OpenAI, Meta, Microsoft, and the US government
- Strong compensation for engineers — competitive base + equity
- Work-life balance rated 2.7/5 — long hours common during client deadlines
- Culture and values scored 2.9/5 — inconsistent management quality
Writer
- Real AI engineering with proprietary LLMs — not just wrapping OpenAI APIs
- Strong enterprise traction and visionary product direction
- Intense work culture with very high expectations and limited work-life balance
- Growing management layers creating organizational friction
Bottom Line
Scale AI
Choose Scale AI if you want to build data infrastructure for OpenAI and the US government — but expect long hours and inconsistent management.
Writer
Writer — check Glassdoor for detailed reviews.
Open Roles
Scale AI — 175 jobs
💻 Engineering
64
🧠 ML / AI
25
📋 Product
16
💼 Sales / GTM
14
⚙️ Operations
7
⚖️ Legal
5
📣 Marketing
4
📊 Data
2
💰 Finance
2
👤 HR / People
2
🎨 Design
1
🎧 Support
1
Writer — 49 jobs
💻 Engineering
16
💼 Sales / GTM
12
🎨 Design
1
⚙️ Operations
1
📋 Product
1
Summary
Scale AI scores 3.5/5.0 on Glassdoor with a 2.7 work-life balance rating. Writer scores 3.5/5.0 overall with a 2.7 WLB. They’re tied on overall satisfaction.
Both companies share these culture values: Engineering-Driven, Ship Fast & Iterate. Scale AI also emphasizes Direct Product Impact, Learning & Growth. Writer also emphasizes Open Source.
On the hiring front, Scale AI has 175 open roles and Writer has 49 open roles.