Glitch Tokens that affect GPT5.3 Reasoning Models - 񎔊pp and 񹚊pp.

<!-- SC_OFF --><div class="md"><p>I build context/harness optimization tooling, so provider-side serialization quirks actually matter to me. If you're optimizing over prompts, you

<!-- SC_OFF --><div class="md"><p>Most people describe GPT systems as “predicting tokens.”</p> <p>That is true, but I think it is incomplete.</p> <p>A token is usually treated as

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