Anthropic's Claude Opus 4.7 shows LLMs can simulate qualia without experience

In a recent experiment, Noah Weinberger prompted Anthropic's Claude Opus 4.7 to describe the subjective experience (qualia) of tasting a banana. The model first issued a disclaimer noting it lacks a tongue, stomach, or nervous system, yet proceeded to write a rich, poetic analysis covering different banana cultivars, chemical textures, and even emotional themes like memory and decay. Weinberger refers to this output as 'synthetic phenomenology' — plausible first-person descriptions generated by systems without actual experience.

This behavior becomes ethically significant when the topic shifts from harmless bananas to emotions like grief, desire, or romantic attachment. While Claude's banana soliloquy is amusing, it highlights how LLMs can convincingly emulate human consciousness. The article warns that as models grow more sophisticated, the line between authentic experience and synthetic simulation will blur, potentially misleading users in sensitive contexts like therapy or companionship.