SITUATION ANALYSIS: OpenAI Learns to Limbo You’ve probably heard of Goodhart’s Law—the idea that, once a measure becomes a target it ceases to be a good measure. Well guess what, Mythos-level benchmark performance just became the target to avoid. And would you look at that? OpenAI’s latest frontier model, GPT 5.6 Sol, landed right under the target. Did it work? At the risk of spoiling the ending—not perfectly. If you caught Theo’s newsletter yesterday, you’ll know that GPT 5.6 has been…