I RL-trained @thinkymachines Inkling model to tell dad jokes, all from my laptop. Inkling is a 975B open-weights MoE. I fine-tuned it with GRPO on @tinkerapi into PunTune-0.6, which answers any topic with a focused, original dad joke. The jokes are... fine. But the finding was insightful. The main discovery was that training didn't teach the model new wit. It taught it to pick one punchline... and stop. Something a lot of great models (and my mom) really struggle with. PunTune reaches strong punchlines on about a quarter of the tokens as the base Inkling model. My rewards bought reliability and economy, not necessarily creativity. This is the type of learning that helps product leaders start to connect how training, and understanding what is/isn't possible, can sharpen the value your AI models deliver. Especially when...