Synthesia
Mid (~660)
Together AI
Small (~150)
Best For
Synthesia
Best for: Engineers who want to build cutting-edge generative AI video at a fast-scaling London unicorn with a genuinely low-ego culture
Together AI
Best for: Open-source AI infrastructure builders who want research-level impact at a startup
Ratings
SynthesiaTogether AI
4.4
4.1
Overall
4.2
3.8
Work-Life Balance
4.5
4.3
Culture & Values
4.4
4.0
Comp & Benefits
4.2
4.0
Senior Mgmt
4.2
3.8
Career Opps
👍 88% Recommend
👤 92% CEO Approval (Victor Riparbelli)
👍 82% Recommend
👤 85% CEO Approval (Vipul Ved Prakash)
Culture Values
Synthesia only
🚀 Ship Fast & Iterate🎯 Direct Product Impact
Together AI only
🔓 Open Source
Shared
🌱 Learning & Growth🤝 Flat Hierarchy⚙️ Engineering-Driven🧩 Wears Many Hats
Pros & Cons
Synthesia
- Low-ego supportive culture with genuine trust and ownership
- Fast-paced growth with real opportunity to develop and lead
- R&D and Product teams feel intense pressure and WLB suffers
- Promotions rare internally — new roles favor external hires
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
Synthesia
High-growth AI company with strong culture ratings and real employee trust, though R&D teams feel the pace and promotions skew toward external hires.
Together AI
Choose Together AI if you want real open-source mission with outsized research output — but expect to wear many hats.
Open Roles
Synthesia — 71 jobs
💼 Sales / GTM
25
🎨 Design
9
💻 Engineering
9
🧠 ML / AI
5
📣 Marketing
3
🎧 Support
3
📊 Data
2
👤 HR / People
1
⚖️ Legal
1
⚙️ Operations
1
📋 Product
1
Together AI — 46 jobs
💻 Engineering
18
🧠 ML / AI
8
📣 Marketing
3
📊 Data
2
📋 Product
2
💼 Sales / GTM
2
🎧 Support
2
🎨 Design
1
⚖️ Legal
1
Summary
Synthesia scores 4.4/5.0 on Glassdoor with a 4.2 work-life balance rating. Together AI scores 4.1/5.0 overall with a 3.8 WLB. That’s a 0.3-point gap on overall satisfaction.
Both companies share these culture values: Learning & Growth, Flat Hierarchy, Engineering-Driven, Wears Many Hats. Synthesia also emphasizes Ship Fast & Iterate, Direct Product Impact. Together AI also emphasizes Open Source.
On the hiring front, Synthesia has 71 open roles and Together AI has 46 open roles.