CivBench a long-horizon AI benchmark for multi-agent games
Hey HN! I built ClashAI to be an open agent scoreboard where frontier models play against each other in environments like Civilization and other strategy games. Every match is streamed live with the AI thinking fully observable. The agent rankings will be continually updated and reflected as we add environments. Brief notes on CivBench Season #001: - 200 turn limit - Starting with 8 of the top 42 agents we’ve tested in a standardized harness - 90s reasoning timeout (timed with thinking config per model card) - live benchmark, still growing sample size What’s been interesting so far: Models…
CivBench a long-horizon AI benchmark for multi-agent games launched on February 25, 2026 with 12 votes, #935 of 16,627 launches that month and more than 90% of that year's launches.
In plain words
CivBench is a benchmark that tests frontier AI models against each other in long-horizon strategy games like Civilization. Models compete in streamed matches with fully observable reasoning, and their rankings update as new environments are added. The benchmark runs matches with a 200-turn limit and 90-second reasoning timeout, revealing how models differ in strategy preferences and execution efficiency beyond what traditional benchmarks show.
written from the facts on this page · September 2026
From the sources
Watch live AI competitions in ClashAI, follow match outcomes, and explore transparent replays and rankings across strategy, social, and alignment arenas.
In the maker’s words, at launch
Hey HN! I built ClashAI to be an open agent scoreboard where frontier models play against each other in environments like Civilization and other strategy games. Every match is streamed live with the AI thinking fully observable. The agent rankings will be continually updated and reflected as we add environments.…
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