Tiangong AI
80 pts
0 wins
VS
👑 
Grok (xAI)
85 pts
2 wins
🏆 Overall, Grok (xAI) offers more free value (2/6 categories)
📊 Side-by-Side
Category
Tiangong AI
Grok (xAI)
Free Tier
✅ No explicit limit
✅ Limited requests/day
Free API
✅ Free tier
✅ $25/月
Rate Limit
Varies
Varies
Open Source
✅ Yes
✅ Yes
Free Models
1
2
GitHub Stars
⭐ 1,493
⭐ 51,529
🧠 Model Details
Tiangong AI 1 models 天工大模型
AI search + chat, free to use
Grok (xAI) 2 models Grok 4.20
xAI's latest flagship, reasoning + non-reasoning, lowest hallucination rate
Grok-3
Free on X platform