VibeThinker-3B: A 3B Dense Reasoning Model Built on Qwen2.5-Coder-3B With the Spectrum-to-Signal Post-Training Pipeline

Researchers have released VibeThinker-3B, a new reasoning model based on the Qwen2.5-Coder-3B architecture. By utilizing a specific post-training process, the model reportedly achieves performance levels on benchmarks comparable to larger reasoning engines like DeepSeek V3.2 and Kimi K2.5.