New: LLM Buyout Game Benchmark. This compresses several abilities into a single game. A model has to read coalition politics, price private deals, decide when survival is worth paying for and manage a buyout endgame. GPT-5.4 (high) is #1. GLM-5 is #2. Opus 4.6 (high) is #3.

This benchmark measures long-horizon social strategy under explicit financial incentives. Eight models play a multi-round elimination game with unequal starting balances, a public prize ladder, private transfers, public votes, and a finalist-only endgame where the last two seats can negotiate, settle, or buy each other out.