Prompt Over Vision: ChatGPT Hallucinates Image Details Based on Text Cues

Red-Pony · reddit · 2026-08-10

A Reddit user discovered a severe hallucination issue in ChatGPT where text prompts overwrite actual visual content.

When asked to read the washing instructions on a label without context, the model correctly identified "machine wash, do not dry clean." However, simply adding "this is a suede shirt" to the prompt caused a massive hallucination. The model completely ignored the image, fabricating typical suede care instructions like "do not wash, specialist leather clean only." For comparison, Gemini handled the same test correctly without being misled by the text cue.

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