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Tech brief · AI platforms

From the Next Word to the Next Entry Point

What a large language model actually is, why tokens are the unit of everything, what an agent harness does — and why 155 apps refused Doubao Mobile Assistant’s SAEP protocol.

14 October 2026 · 15 min read Read
Next: the economics of inferenceWhat it actually costs to answer a question.
Next: agents and consentWho agrees when software acts for you.
Next: the token taxHow pricing shapes what gets built.