Fireworks AI
Small (~100)
Perplexity AI
Mid (~500)
Best For
Fireworks AI
Best for: Engineers who want to work with ex-Meta AI infrastructure engineers on LLM inference
Perplexity AI
Best for: Builders who thrive on speed and want massive user-facing impact at a rocketship
Ratings
Fireworks AIPerplexity AI
4.2
4.7
Overall
3.3
3.3
Work-Life Balance
4.3
4.8
Culture & Values
4.2
4.5
Comp & Benefits
4.2
4.5
Senior Mgmt
4.0
4.2
Career Opps
👍 92% Recommend
👤 95% CEO Approval (Aravind Srinivas)
Culture Values
Fireworks AI only
🧩 Wears Many Hats🎧 Deep Work / Low Meetings
Perplexity AI only
🎯 Direct Product Impact💎 Strong Comp & Equity
Shared
⚙️ Engineering-Driven🚀 Ship Fast & Iterate🌱 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
Perplexity AI
- Fastest-growing AI product — real users, real revenue, genuine product-market fit
- Small team, massive impact per engineer — your work ships to millions quickly
- Startup intensity — expect long hours and high expectations
- Growing pains as the team scales — roles and responsibilities shift frequently
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.
Perplexity AI
Choose Perplexity if you want the fastest-growing AI product and huge per-engineer impact — but expect startup intensity.
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
Perplexity AI — 79 jobs
💻 Engineering
44
🧠 ML / AI
6
📊 Data
5
💼 Sales / GTM
4
⚖️ Legal
3
⚙️ Operations
3
📣 Marketing
2
🎧 Support
2
👤 HR / People
1
📋 Product
1
Summary
Fireworks AI scores 4.2/5.0 on Glassdoor with a 3.3 work-life balance rating. Perplexity AI scores 4.7/5.0 overall with a 3.3 WLB. That’s a 0.5-point gap on overall satisfaction.
Both companies share these culture values: Engineering-Driven, Ship Fast & Iterate, Learning & Growth. Fireworks AI also emphasizes Wears Many Hats, Deep Work / Low Meetings. Perplexity AI also emphasizes Direct Product Impact, Strong Comp & Equity.
On the hiring front, Fireworks AI has 28 open roles and Perplexity AI has 79 open roles.