Continuously updated · AI Dictionary
The language of AI,
clearly defined.
A field guide to the words changing how we build, work and think—from token and transformer to AI agents and vibe coding.
560 terms
10 topics
1847–2026 timeline
Built as a living reference
Clear words. Useful context.
01
Plain English firstThe definition comes before the jargon.
02
Usage over hypeEstablished meanings are separated from new or informal ones.
03
Show the trailSources appear on entries as they are reviewed.
Latest update · November 2026
New in the AI Dictionary
Fresh language for the newest shifts in AI, explained without the jargon.
model self-assessment
a monitoring technique in which an AI model evaluates its own recent response, conversation, capability, or conduct and produces a separate judgment that can be logged, reviewed, or used by another safeguard
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super-agent
an AI agent designed to coordinate a broad domain of work across multiple tasks, sessions, tools, or specialized worker agents, while maintaining higher-level context and deciding what should happen next
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agent-in-the-middle
an attack on a multi-agent AI system in which a malicious relay intercepts and changes messages exchanged between agents without directly compromising the agents themselves
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AI agent stack
the set of technical layers used to build and operate an AI agent, typically including models, orchestration, tools, memory, runtime infrastructure, evaluation, observability, and guardrails
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