←Back to NewsAI News/LlmsnewsLlmsApiOpenAI Fixes Silent Image Bug Breaking GPT-6 Sol and Luna VisionOpenAI patched an image encoding bug that had been quietly hurting vision quality on its two newest reasoning models, GPT-6 Sol and GPT-6 Luna.SourceOpenAI DevelopersPublishedSep 27, 2026, 4:49 PMAuthorAlphaSignal NewsroomRead1 min readOpenAI patched an image encoding bug that had been quietly hurting vision quality on its two newest reasoning models, GPT-6 Sol and GPT-6 Luna.Reporting is indexed from AlphaSignal. Rights remain with the original publisher and cited sources.Read original report ↗Next readsMicrosoft Developer · newsAnthropic's Claude Opus 5.5 Slashes Coding Agent Costs by 40%Google Gemini · newsGoogle's Gemini Now Controls Adobe, Linear and 12 More AppsOpenAI Developers · newsOpenAI Makes GPT-6 Prompt Caching 90% Cheaper and Fully Visible
