Qwen puter embeds a 32-bit RISC-V virtual CPU into Qwen the weights and passes approximately 18000000 instruction tests
An independent developer built Qwen3.5-4B based on Qwen puter, integrating a 32-bit RISC-V virtual CPU and readable/writable memory into the model weights. The project can run compiled C programs, but its model size and computational efficiency remain clearly inferior to those of external tools.