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Open AI Stack Matures: Tools, Post-Training Trump Base Models

Sebastian Raschka discussed the evolution of the open AI stack, emphasizing that tools and post-training are now more critical than base models. He highlighted that Europe's strength lies in specialized training and domain data, not necessarily in developing new foundational models. Raschka also noted that open-weight models are a prerequisite for progress and that senior engineers are increasingly valuable for their review capabilities, which are becoming a bottleneck. AI

影响 Highlights the growing importance of specialized tools and post-training techniques over foundational models in the AI industry.

排序理由 This cluster contains commentary from an expert on the current state and future direction of the open AI stack.

在 Mastodon — sigmoid.social 阅读 →

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Open AI Stack Matures: Tools, Post-Training Trump Base Models

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  1. Mastodon — sigmoid.social TIER_1 English(EN) · [email protected] ·

    I had the pleasure to sit down with @ SebRaschka for a fireside chat at @ pyconde & PyData 2026 — the open AI stack grew up: ▪ Harness > base model. Cursor's Co

    I had the pleasure to sit down with @ SebRaschka for a fireside chat at @ pyconde & PyData 2026 — the open AI stack grew up: ▪ Harness > base model. Cursor's Composer is a post-trained Kimi K2.5. ▪ Europe's lever isn't a new base model — it's post-training, tools, domain data. ▪ …