ChatGPT (OpenAI)
55 pts
1 wins
VS
👑 
Mistral AI
85 pts
3 wins
🏆 Overall, Mistral AI offers more free value (3/6 categories)
📊 Side-by-Side
Category
ChatGPT (OpenAI)
Mistral AI
Free Tier
✅ Limited requests/day
✅ No explicit limit
Free API
❌ None
✅ Free tier
Rate Limit
N/A
1 RPM
Open Source
❌ No
✅ Yes
Free Models
5
2
GitHub Stars
-
⭐ 10,781
🧠 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
Mistral AI 2 models Mistral Large
Europe's strongest model, free to use
Mistral Small
Lightweight and fast, good for daily tasks