[GPT Image 2.5 Coming Soon? Arena Unveils Mysterious Image Generation Model] Beating AI Newsflash: A mysterious image generation model, luna-lisa-alpha, has appeared on LMArena. The community regards it as the next GPT Image checkpoint (a training phase version) following mona-lisa-1. Testers have primarily noted three improvements: stronger realism, better character consistency, and reduced grain noise. When generating the same character consecutively, appearance and style remain more stable. The noticeable grain from mona-lisa has largely disappeared. However, some testers have observed that complex characters still exhibit detail deviations. The previous mona-lisa-1 was identified by OpenAI's image verification tool as originating from OpenAI, leading the community to widely speculate that luna-lisa-alpha is part of the same series of test models. Lumina [Original Link]