{"type":"raw_signal","id":"focusing-on-post-training-81ffee","slug":"focusing-on-post-training-81ffee","title":"Sebastian Raschka uses Fireworks’ Ember-1 as a case study for post-training an existing open-weight LLM","description":"Sebastian Raschka uses Fireworks’ Ember-1 as a case study for post-training an existing open-weight LLM rather than repeating costly frontier-scale pretraining.","retrieval_nugget":"Sebastian Raschka uses Fireworks’ Ember-1 as a case study for post-training an existing open-weight LLM rather than repeating costly frontier-scale pretraining.","observed_at":"2026-09-28","record_date":"2026-09-28","date_kind":"observed_at","why_it_matters":"Source: https://sebastianraschka.com/blog/2026/focusing-on-llm-post-training.html","novelty":"notable","verification_level":"source-linked","signal_type":"research","source_platform":"sebastianraschka.com","topics":[],"entities":[],"related_patterns":[],"source_url":"https://sebastianraschka.com/blog/2026/focusing-on-llm-post-training.html","source_urls":["https://sebastianraschka.com/blog/2026/focusing-on-llm-post-training.html"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"signal:focusing-on-post-training-81ffee","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/focusing-on-post-training-81ffee/","markdown":"https://newruntime.com/signals/focusing-on-post-training-81ffee.md","json":"https://newruntime.com/signals/focusing-on-post-training-81ffee.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"}]}