Karpathy: 'Brain upload' via LLM finetuning is already possible — dystopian but tractable

Karpathy says brain upload via LLM finetuning is already feasible, calling it a "lossy and approximate version" of sci-fi brain uploads. He sketches a startup where detailed video interviews feed an LLM finetuning process to create an API endpoint of your simulation, citing HeyGen as a proof point. The signal: Karpathy is framing LLM personalization as a near-term, commercially viable path to digital immortality, not a distant fantasy.

• #andrej-karpathy
• #llm
• #brain-upload
• #heygen
• #ai-personalization

Andrej Karpathy@karpathy