Fireworks AI
Small (~100)
Together AI
Small (~150)
Best For
Fireworks AI
Best for: Engineers who want to work with ex-Meta AI infrastructure engineers on LLM inference
Together AI
Best for: Open-source AI infrastructure builders who want research-level impact at a startup
Ratings
Fireworks AITogether AI
4.2
4.1
Overall
3.3
3.8
Work-Life Balance
4.3
4.3
Culture & Values
4.2
4.0
Comp & Benefits
4.2
4.0
Senior Mgmt
4.0
3.8
Career Opps
👍 82% Recommend
👤 85% CEO Approval (Vipul Ved Prakash)
Culture Values
Fireworks AI only
🚀 Ship Fast & Iterate🎧 Deep Work / Low Meetings
Together AI only
🔓 Open Source🤝 Flat Hierarchy
Shared
⚙️ Engineering-Driven🧩 Wears Many Hats🌱 Learning & Growth
Pros & Cons
Fireworks AI
- World-class team of ex-Meta AI infrastructure engineers — technically very strong peers
- Working on LLM inference optimization which is one of the hottest areas in AI infrastructure
- Early-stage startup intensity with long hours expected and high performance bar
- Small team and rapidly evolving product means less structure, process, and career laddering
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
Fireworks AI
Choose Fireworks AI if you want to work with ex-Meta AI infrastructure engineers on cutting-edge LLM inference — but expect early-stage startup intensity and limited structure.
Together AI
Choose Together AI if you want real open-source mission with outsized research output — but expect to wear many hats.
Open Roles
Fireworks AI — 28 jobs
💻 Engineering
9
💼 Sales / GTM
4
⚙️ Operations
2
👤 HR / People
1
⚖️ Legal
1
📣 Marketing
1
🧠 ML / AI
1
📋 Product
1
Together AI — 47 jobs
💻 Engineering
18
🧠 ML / AI
8
📣 Marketing
3
📊 Data
2
📋 Product
2
💼 Sales / GTM
2
🎧 Support
2
🎨 Design
1
👤 HR / People
1
⚖️ Legal
1
Summary
Fireworks AI scores 4.2/5.0 on Glassdoor with a 3.3 work-life balance rating. Together AI scores 4.1/5.0 overall with a 3.8 WLB. That’s a 0.1-point gap on overall satisfaction.
Both companies share these culture values: Engineering-Driven, Wears Many Hats, Learning & Growth. Fireworks AI also emphasizes Ship Fast & Iterate, Deep Work / Low Meetings. Together AI also emphasizes Open Source, Flat Hierarchy.
On the hiring front, Fireworks AI has 28 open roles and Together AI has 47 open roles.