Epoch AI Launches SpireClimb Benchmark for Slay the Spire
Progress on a single long-horizon game is a proxy for how quickly agentic planning and decision-making capabilities are moving, and SpireClimb gives teams a repeatable way to measure that gap across model releases. Practitioners benchmarking agents on sequential decision tasks can use the difficulty tiers to compare models beyond static Q&A tests. Tracking which labs' models clear the hardest difficulty will be a useful signal in coming releases.
