Why Context Windows Stalled at a Million Tokens
from My Weird Prompts
Language model context windows grew thirtyfold a year before hitting a ceiling at one million tokens. Hardware limits explain why: storing and constantly reading massive key-value caches rapidly outgrows flagship GPU memory and bandwidth. Compounding the cost, real-world retrieval accuracy plummets across long documents, leaving labs to double prices for lengthy queries while pushing context compaction over brute-force expansions. Episode 6253 — myweirdprompts.com/n/6253 (permanent short link: myweirdprompts.com/213069) Listen on Android: MWP FM Player — myweirdprompts.com/apk
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