ElevenLabs
Mid (~600)
Sierra
Large (~500)
Best For
ElevenLabs
Best for: AI engineers who want to push the frontier of voice synthesis at a fast-growing startup
Sierra
Best for: Builders who want to work with proven Salesforce and Google leadership on enterprise AI agents
Ratings
ElevenLabsSierra
4.2
4.0
Overall
3.6
3.5
Work-Life Balance
4.0
4.1
Culture & Values
4.2
4.0
Comp & Benefits
3.8
3.8
Senior Mgmt
3.5
3.8
Career Opps
👍 78% Recommend
👤 82% CEO Approval (Mati Staniszewski)
👍 80% Recommend
👤 84% CEO Approval (Bret Taylor)
Culture Values
ElevenLabs only
🌐 Remote-Friendly🎯 Direct Product Impact
Sierra only
💎 Strong Comp & Equity
Shared
🚀 Ship Fast & Iterate⚙️ Engineering-Driven🌱 Learning & Growth
Pros & Cons
ElevenLabs
- Cutting-edge AI voice technology — working on one of the most advanced products in the AI voice space
- Exceptional talent density and remote-first culture spanning 30+ countries
- Work-life balance is poor — 60+ hour weeks are the norm with constant pressure to deliver
- Leadership maturity concerns — little margin for error or professional growth
Sierra
- Elite founders with proven track records
- Strong equity at $10B valuation
- In-person-first culture
- Competitive intensity may not suit everyone
Bottom Line
ElevenLabs
Choose ElevenLabs if you want cutting-edge AI voice tech with remote flexibility — but expect intense hours and startup pace.
Sierra
Choose Sierra if you want elite founders (Bret Taylor, Clay Bavor) and strong equity at a $10B enterprise AI company — but it's in-person-first and the competitive intensity won't suit everyone.
Open Roles
ElevenLabs — 112 jobs
💼 Sales / GTM
51
💻 Engineering
15
📣 Marketing
13
⚖️ Legal
2
⚙️ Operations
2
🎧 Support
2
🎨 Design
1
👤 HR / People
1
🧠 ML / AI
1
Sierra — 134 jobs
💻 Engineering
42
💼 Sales / GTM
27
📋 Product
15
👤 HR / People
7
🎨 Design
5
⚖️ Legal
5
📣 Marketing
5
⚙️ Operations
5
📊 Data
2
💰 Finance
1
Summary
ElevenLabs scores 4.2/5.0 on Glassdoor with a 3.6 work-life balance rating. Sierra scores 4.0/5.0 overall with a 3.5 WLB. That’s a 0.2-point gap on overall satisfaction.
Both companies share these culture values: Ship Fast & Iterate, Engineering-Driven, Learning & Growth. ElevenLabs also emphasizes Remote-Friendly, Direct Product Impact. Sierra also emphasizes Strong Comp & Equity.
On the hiring front, ElevenLabs has 112 open roles and Sierra has 134 open roles.