👑 
ChatGPT (OpenAI)
55 pts
1 wins
VS
Perplexity AI
40 pts
0 wins
🏆 Overall, ChatGPT (OpenAI) offers more free value (1/6 categories)
📊 Side-by-Side
Category
ChatGPT (OpenAI)
Perplexity AI
Free Tier
✅ Limited requests/day
✅ No limit (basic search)
Free API
❌ None
❌ None
Rate Limit
N/A
N/A
Open Source
❌ No
❌ No
Free Models
5
2
GitHub Stars
-
-
🧠 Model Details
ChatGPT (OpenAI) 5 models GPT-5.5
Released April 2026, smartest model, major upgrade for coding/research/analysis. API $5/M input, $30/M output
GPT-5.5 Pro
Deep reasoning variant for complex high-stakes tasks. API $30/M input, $180/M output
GPT-5.4
Previous flagship, still powerful
GPT-4o mini
Available to free users, fast
GPT-4o
Very limited for free users
Perplexity AI 2 models Perplexity Default
AI search engine, real-time web access
Pro Search
Deep search, 5 per day for free users