{"type":"raw_signal","id":"sakana-ai-and-uc-berkeley-released-mass-a-5d8ec1","slug":"sakana-ai-and-uc-berkeley-released-mass-a-5d8ec1","title":"Sakana AI and UC Berkeley released MASS , a recursive self-improvement loop using one shared model for every role.","description":"Sakana AI and UC Berkeley introduced Multi-Agent Self-Supervision (MASS), a recursive self-improvement method in which one shared language model serves as task executor, workflow optimizer, and evaluator.","retrieval_nugget":"Sakana AI and UC Berkeley introduced Multi-Agent Self-Supervision (MASS), a recursive self-improvement method in which one shared language model serves as task executor, workflow optimizer, and evaluator.","observed_at":"2026-10-11","record_date":"2026-10-11","date_kind":"observed_at","why_it_matters":"Sakana AI and UC Berkeley introduced Multi-Agent Self-Supervision (MASS), a recursive self-improvement method in which one shared language model serves as task executor, workflow optimizer, and evaluator. MASS first searches for a stronger multi-agent workflow using the model’s judgments, then trains on executions from the selected workflow and repeats the cycle. The source says the method improve","novelty":"notable","verification_level":"source-linked","signal_type":"research","source_platform":"pub.sakana.ai","topics":[],"entities":["Sakana AI","University of California, Berkeley","MASS","GPT-5.5","Claude Opus 4.8"],"related_patterns":["harness-architecture-outlives-model-choice","verification-bandwidth-is-the-scarce-resource"],"source_url":"https://pub.sakana.ai/mass","source_urls":["https://pub.sakana.ai/mass"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"signal:sakana-ai-and-uc-berkeley-released-mass-a-5d8ec1","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/signals/sakana-ai-and-uc-berkeley-released-mass-a-5d8ec1/","markdown":"https://newruntime.com/signals/sakana-ai-and-uc-berkeley-released-mass-a-5d8ec1.md","json":"https://newruntime.com/signals/sakana-ai-and-uc-berkeley-released-mass-a-5d8ec1.json"},"next_reads":[{"type":"collection","path":"/signals/","url":"https://newruntime.com/signals/","title":"Raw Signals","reason":"Open every source-linked raw signal.","media_type":"text/html","json_url":"https://newruntime.com/signals.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}