Now supports GPT-5.4, GPT-5.4 mini, and GPT-5.4 nano!2026-04-02FAQ
Updated on Nov 14, 2024
Who made Ruo Yu?
Made by Ding Yu from Tokyo with love ❤️
What AI models does Ruo Yu support?
These are the models currently supported by Ruo Yu and the amount of text each can generate with different models.
| Model | With 2,000,000 cans of cat food, text processed per model |
|---|---|
| GPT-4.1 | 112,781 English words or 75,000 Chinese or Japanese characters |
| GPT-4.1 mini | 563,909 English words or 374,999 Chinese or Japanese characters |
| GPT-4.1 nano | 2,255,639 English words or 1,499,999 Chinese or Japanese characters |
| GPT-5 | 90,225 English words or 59,999 Chinese or Japanese characters |
| GPT-5 mini | 451,127 English words or 300,000 Chinese or Japanese characters |
| GPT-5 nano | 2,255,639 English words or 1,499,999 Chinese or Japanese characters |
| GPT-5.4 | 60,150 English words or 40,000 Chinese or Japanese characters |
| GPT-5.4 mini | 200,501 English words or 133,333 Chinese or Japanese characters |
| GPT-5.4 nano | 721,804 English words or 479,999 Chinese or Japanese characters |
Does Ruo Yu support continuous dialogue (context)?
Yes.
What is cat food?
The cat food provided in each package serves as a resource for answering your questions. Every time Ruo Yu responds to your queries, it consumes a portion of the cat food.
If the cat food in the package runs out, just recharge.
Can I see your development roadmap?
Please check out Backyard.
I have other questions. How can I contact you?
Send an email to felixding@gmail.com