OpenAI
Large (~3,500)
Together AI
Small (~150)
Best For
OpenAI
Best for: Engineers who want to build frontier AI models at the company defining the industry, with elite compensation
Together AI
Best for: Open-source AI infrastructure builders who want research-level impact at a startup
Ratings
OpenAITogether AI
4.5
4.1
Overall
3.6
3.8
Work-Life Balance
4.6
4.3
Culture & Values
4.5
4.0
Comp & Benefits
4.3
4.0
Senior Mgmt
4.3
3.8
Career Opps
👍 90% Recommend
👤 95% CEO Approval (Sam Altman)
👍 82% Recommend
👤 85% CEO Approval (Vipul Ved Prakash)
Culture Values
OpenAI only
🚀 Ship Fast & Iterate🎯 Direct Product Impact💎 Strong Comp & Equity
Together AI only
🔓 Open Source🤝 Flat Hierarchy🧩 Wears Many Hats
Shared
⚙️ Engineering-Driven🌱 Learning & Growth
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
Together AI
- Open-source AI infrastructure — real mission alignment, not just marketing
- Small team with outsized research output; your work has direct impact
- Early-stage means wearing many hats constantly — not for specialists
- Limited career ladder; growth paths are still being defined
Bottom Line
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.
Together AI
Choose Together AI if you want real open-source mission with outsized research output — but expect to wear many hats.
Open Roles
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
Together AI — 49 jobs
💻 Engineering
19
🧠 ML / AI
9
📊 Data
4
📋 Product
3
🎧 Support
3
📣 Marketing
2
💼 Sales / GTM
2
🎨 Design
1
⚖️ Legal
1
⚙️ Operations
1
Summary
OpenAI scores 4.5/5.0 on Glassdoor with a 3.6 work-life balance rating. Together AI scores 4.1/5.0 overall with a 3.8 WLB. That’s a 0.4-point gap on overall satisfaction.
Both companies share these culture values: Engineering-Driven, Learning & Growth. OpenAI also emphasizes Ship Fast & Iterate, Direct Product Impact, Strong Comp & Equity. Together AI also emphasizes Open Source, Flat Hierarchy, Wears Many Hats.
On the hiring front, OpenAI has 655 open roles and Together AI has 49 open roles.