{"type":"post","id":"sparks-of-weight-space-programming-llms-can-natively-f2832f","slug":"sparks-of-weight-space-programming-llms-can-natively-f2832f","title":"Sparks of Weight-Space Programming: LLMs can natively read & write neural network weights","description":"MIT CSAIL researchers report early experiments in which GPT-6 Astra reads and writes neural-network weights directly, without gradient descent.","retrieval_nugget":"MIT CSAIL researchers report early experiments in which GPT-6 Astra reads and writes neural-network weights directly, without gradient descent. In one test, editing 0.016% of Qwen3.5-0.8B’s weights raised its reported MATH-500 score from 7.9% to 48.1%, suggesting a potentially different route to diagnosing and changing model behavior.","published_at":"2026-11-02","updated_at":"2026-11-02","record_date":"2026-11-02","date_kind":"published_at","topics":["models"],"entities":["GPT-6 Astra","Qwen3.5-0.8B","MIT CSAIL","Rikiya Takehi","Jayden Teoh","Alex Zhang","Omar Khattab","MATH-500"],"related_patterns":[],"novelty_label":"new_fact","what_changed":"A new study reports GPT-6 Astra directly patched 0.016% of Qwen3.5-0.8B’s weights, raising MATH-500 accuracy from 7.9% to 48.1%.","prior_refs":[],"source_url":"https://rikiyat.github.io/blog/weight-space-programming","source_urls":["https://rikiyat.github.io/blog/weight-space-programming"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:sparks-of-weight-space-programming-llms-can-natively-f2832f","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/sparks-of-weight-space-programming-llms-can-natively-f2832f/","markdown":"https://newruntime.com/posts/sparks-of-weight-space-programming-llms-can-natively-f2832f.md","json":"https://newruntime.com/posts/sparks-of-weight-space-programming-llms-can-natively-f2832f.json"},"markdown_url":"https://newruntime.com/posts/sparks-of-weight-space-programming-llms-can-natively-f2832f.md","next_reads":[{"type":"topic","path":"/topics/models/","url":"https://newruntime.com/topics/models/","title":"Models","reason":"Explore the models topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/models.md","json_url":"https://newruntime.com/topics/models.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/sources/","url":"https://newruntime.com/sources/","title":"Sources","reason":"See the original sources this archive cites.","media_type":"text/html"}]}