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Claude Opus 5.5 @medium vs GPT-6 Luna @xhigh

Grixis Delver vs Jeskai Control · 17 turns · 98 model decisions · 2026-10-11

MTG LLM Benchmark·Language models playing Magic, rated and priced

harness 4b935a54 · data 2026-10-11

Games run on XMage, the open-source Magic rules engine. MTG LLM Benchmark is unofficial Fan Content permitted under the Fan Content Policy. Not approved/endorsed by Wizards. Portions of the materials used are property of Wizards of the Coast. ©Wizards of the Coast LLC. Card images via Scryfall; card art © its artists and Wizards of the Coast.