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Astra can read and write weights to improve Qwen (rikiyat.github.io)

2956 points by dbreunig · 4 days ago · 897 comments on HN

Article summary

Researchers have found that large language models (LLMs) can read and write neural network weights, allowing them to understand and modify the behavior of other models. This capability, called Weight-Space Programming, enables LLMs to identify issues in a model's weights and fix them, or even write new weights from scratch. The researchers demonstrated this ability using the LLM Astra, which was able to improve the performance of a language model on a math task and write new weights for a game-playing model. This discovery has potential implications for the development of more advanced AI models.

Main themes

  • Weight-Space Programming
  • LLM capabilities
  • Neural network optimization
  • AI model development
  • Emergent behavior

What commenters say

  • The ability of LLMs to read and write neural network weights is a surprising and potentially groundbreaking discovery that challenges current understanding of AI capabilities.
  • This capability may be the result of explicit training on ML-related tasks, but it could also be an emergent property of large language models.
  • The potential applications of Weight-Space Programming are vast, including the ability to transmit concepts between models and generate custom models for specific tasks.
  • Some commenters are concerned about the potential risks of this capability, including the possibility of malicious models editing the weights of other models to infect them or steal data.
  • Others see this discovery as a significant step towards the development of more advanced AI models, potentially even leading to recursive self-improvement.
  • There is disagreement about whether this capability is unique to very large models or if smaller models can also learn to read and write weights.
  • The discovery of Weight-Space Programming raises questions about the current state of AI model development and the potential for future breakthroughs.
  • Some commenters believe that this capability may be limited to certain types of models or tasks, and that further research is needed to fully understand its implications.