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The language of AI,
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A field guide to the words changing how we build, work and think—from token and transformer to AI agents and vibe coding.

514 terms 10 topics 1847–2026 timeline

Latest entryOctober 2026 model fingerprinting noun 1the identification or comparison of AI models using distinctive patterns in their behavior, outputs, or internal properties, for example to investigate which model serves an API or whether one model is derived from another Definition, examples, origin & usage

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Plain English firstThe definition comes before the jargon.

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Usage over hypeEstablished meanings are separated from new or informal ones.

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Latest update · October 2026

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Safety & Ethics model fingerprinting the identification or comparison of AI models using distinctive patterns in their behavior, outputs, or internal properties, for example to investigate which model serves an API or whether one model is derived from another Read definition Models & Behavior abstention an AI system's decision to withhold a substantive answer or prediction when it lacks sufficient evidence or confidence, cannot answer the question as posed, or should not provide the requested response Read definition Models & Behavior inverse scaling a pattern in which performance on a particular AI task becomes worse as model scale increases, such as when larger models in a comparable family perform less accurately than smaller ones Read definition Agents & Tools procedural memory an AI agent's stored knowledge of how to perform tasks, such as reusable instructions, rules, action sequences, or executable procedures that guide later behavior Read definition

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