GPT-6.1 Terra Now Testable on LMArena in Battle and Agent Modes

arena · x · 2026-10-27

LMArena (arena.ai) announced that GPT-6.1 Terra is now available for testing on its platform, in both Battle Mode (blind side-by-side comparison) and Agent Mode.

Users can try the model via the platform's chat, leaderboard, and search interfaces, along with preset scenarios like landing page generation, dashboard building, browser games, image-to-code, and fullstack app scaffolding.

Related event: OpenAI Launches GPT-6.1 Terra: Agent-Focused Model With 50% Cheaper API(35 posts)→

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