Byte 4.0 upgrades from 8 to 18 reasoning methods: Graph-of-Thought (GoT) aggregation, Buffer-of-Thoughts (BoT) templates, Self-Discover structure, Quiet-STaR internal tokens, Chain-of-Verification, Self-Refine loop, Cumulative Reasoning DAG, Mixture-of-Agents proposer→aggregator, Algorithm-of-Thoughts, plus CoT, ToT, Self-Consistency weighted vote, ReAct, Reflexion, Step-Back, Least-to-Most, Constitutional, Meta-Prompting. Retrieval adds ColBERT late interaction, SPLADE sparse, RankGPT. Face upgrades to continuous FACS blending (not discrete), micro-expressions 1/25s flashes, eye-tracking that looks at ToT/GoT nodes, dynamic lighting by emotion, head tilt, shoulder breathing, 12 viseme phoneme groups, forehead wrinkles, nasolabial folds — all procedural Canvas 2D, 60fps, no images.
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