👑 
Cerebras
65 pts
1 wins
VS
ChatGPT (OpenAI)
55 pts
1 wins
🏆 Overall, Cerebras offers more free value (1/6 categories)
📊 Side-by-Side
Category
Cerebras
ChatGPT (OpenAI)
Free Tier
✅ 1M tokens/day
✅ Limited requests/day
Free API
✅ 1M tokens/day
❌ None
Rate Limit
30 RPM / 60K TPM / 1M TPD
N/A
Open Source
❌ No
❌ No
Free Models
2
5
GitHub Stars
-
-
🧠 Model Details
Cerebras 2 models Llama 3.3 70B
World's fastest inference, 2000+ tokens/s
Llama 3.1 8B
Lightweight and fast
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