AI · 1h ago
Why AI Can't Count the R's in Strawberry: BPE Tokenizers Explained
Byte-Pair Encoding (BPE) tokenizers split text into subword tokens, not letters, causing LLMs to lose character-level information. A new interactive simulator lets users see how tokenization works and why models fail at simple letter-counting tasks. The tool reveals that token budget inflation can also increase API costs.
Meridian48 take
The strawberry blindness is a neat demo, but the real takeaway is that tokenization quirks affect everything from cost to reasoning—and most users have no idea.
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Day 3: Watch your grammar with AI, it may cost you — Understanding BPE Tokenizers 🍓🔡 →
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