{"slug": "model-can-accept-1m-tokens-doesn-t-mean-it-can-reason-across-those-1m-tokens", "title": "Model can accept 1M tokens doesn't mean it can reason across those 1M tokens", "summary": "A Prime Intellect engineer revealed that GPT-5.5's retrieval accuracy drops from 80% at 256k tokens to 36% at 1 million tokens, a phenomenon called 'context rot,' and argued that bigger context windows are not a solution for AI agents. Andrew Ng released a free course on Claude Code, covering its agentic architecture and codebase interaction, in collaboration with Anthropic.", "body_md": "Prime Intellect engineer:\n\"everyone's bragging about a million-token context. here's what they don't tell you.\nat 256k tokens GPT-5.5 scores 80% on retrieval. push it to a million and it drops to 36%. the model accepts the context, it just can't reason across it. people call it context rot.\"\nin a 20-minute talk he explains why bigger context windows won't save your agents.\ncontinual learning + training on your own traces + real environments - that's the fix.\nWatch the talk, then save!\n\nAndrew Ng just dropped a free course on Claude Code from scratch, taught with the Anthropic team:\n00:00 - why Claude Code is so agentic\n04:00 - shockingly simple architecture\n12:00 - point it at any codebase\nthis short watch will replace 10 paid coding agent courses.\nAndrew Ng", "url": "https://wpnews.pro/news/model-can-accept-1m-tokens-doesn-t-mean-it-can-reason-across-those-1m-tokens", "canonical_source": "https://twitter.com/0xCarnagee/status/2075983721841225885", "published_at": "2026-07-11 23:23:57+00:00", "updated_at": "2026-07-11 23:34:58.296715+00:00", "lang": "en", "topics": ["large-language-models", "ai-agents", "ai-research", "ai-tools"], "entities": ["Prime Intellect", "GPT-5.5", "Andrew Ng", "Claude Code", "Anthropic"], "alternates": {"html": "https://wpnews.pro/news/model-can-accept-1m-tokens-doesn-t-mean-it-can-reason-across-those-1m-tokens", "markdown": "https://wpnews.pro/news/model-can-accept-1m-tokens-doesn-t-mean-it-can-reason-across-those-1m-tokens.md", "text": "https://wpnews.pro/news/model-can-accept-1m-tokens-doesn-t-mean-it-can-reason-across-those-1m-tokens.txt", "jsonld": "https://wpnews.pro/news/model-can-accept-1m-tokens-doesn-t-mean-it-can-reason-across-those-1m-tokens.jsonld"}}