LMArena is an open-source platform for crowdsourced AI benchmarking, created by researchers from UC Berkeley SkyLab (SkyLab). For more information on how the leaderboard is constructed, see LMArena - Blog. The question will be suspended on 29 September 2025 and the outcome determined using the ranks as reported by LM Arena at approximately 5:00p.m. ET on 30 September 2025 (LMArena - Text Arena Leaderboard, see "Rank (UB)"). As of 27 May 2025, Google was ranked first, with its "gemini-2.5-pro-preview-05-06" scoring 1446, followed by OpenAI's "o3-2025-04-16" scoring 1435. In the event of a tie for first place by LLMs of different organizations, the LLM with the higher "Score" will be considered first, followed by the "Votes" total. If the named source changes the way it presents the data, further instructions will be provided.

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The question closed "Google" with a closing date of 30 September 2025.

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