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Exploring Claude/GPT Knowledge Cutoffs and Pre-Training Timelines
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Overview
Probing models like Claude and GPT with curated requests reveals insights into their training processes and knowledge cutoffs. Techniques such as "Incompressible Knowledge Probes" help estimate model parameters and analyze dataset mixtures by measuring token breakdowns.
Summary from blog.sshh.io.
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Hacker News · blog.sshh.io
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Based on 5 sampled comments from this thread. Analyzed 2026-08-11.
- Praise: The analysis offers a fresh lens to understand model release strategies, potentially revealing how much labs are holding back their innovations.
- Praise: One commenter highlights the intriguing possibility that LLMs have distinct knowledge cutoffs, suggesting a nuanced understanding of their training timelines.
- Praise: Readers appreciate the article's depth, with one calling it a 'great read' that sparks curiosity about future AI advancements.
- Concern: There's skepticism about whether developers truly release models when they're ready, with concerns that they might be forced to push out subpar versions.
- Concern: One commenter doubts Anthropic's training practices, implying they may not be leveraging ChatGPT effectively, which raises questions about their competitive edge.
- Concern: Concerns loom over how marketing names like 'Opus 5' can mask the complexity of actual model updates, leading to confusion about their capabilities.