Large language models lack the speed of decision and the shift in attention that define a biological emotion.
April 23, 2026
Original Paper
Do Large Language Models Have Emotions?
PsyArXiv · zprjt_v1
The Takeaway
Some high-profile AI labs claim their models are starting to feel functional emotions. This research benchmarks those claims against biological reality and finds them lacking. While AI can talk about feelings, it does not experience the physical reorganization of its system that humans do. Emotions in biology are survival mechanisms that change how we process the world in real-time. The AI internal state remains static and detached from these motivational pressures. We can stop worrying about sad or angry AI for now because the architecture simply is not built for it.
From the abstract
Do LLMs have emotions? A recent paper from Anthropic reports finding internal representations of emotion concepts in Claude Sonnet 4.5, concluding that the LLM has 'functional emotions.' We evaluate this claim against what is known about how emotions actually function in biological systems. We argue that emotions serve two core functions: the context-sensitive interpretation of situations, and the reorganization of processing across multiple systems in response to those interpretations. The Anth