The AI terms that
actually matter.
Clear, technical definitions of 115 key concepts — written by AI engineers, not marketers.
Test-Time Compute
Test-time compute (also called test-time scaling or inference-time compute) is the practice of spending extra computation at inference, sampling multiple candidates, searching over reasoning paths, or generating long internal reasoning tokens, to improve answer quality, instead of only relying on a bigger, more expensive-to-train model. It trades inference cost for accuracy on a per-query basis.
Read definitionTransformer Architecture
The Transformer architecture is a deep learning model that uses self-attention mechanisms to efficiently process sequential data, such as text, without relying on recurrent layers.
Read definitionTurboQuant
TurboQuant is a Google Research compression algorithm that reduces LLM key-value cache memory by 6× and speeds up attention computation up to 8× — with zero accuracy loss and no retraining required — using a two-stage geometric quantization approach.
Read definitionVector Similarity Search
Vector similarity search is the process of finding stored vectors that are mathematically closest to a query vector in high-dimensional space — the core retrieval operation behind semantic search, RAG, recommendation systems, and embedding-based AI pipelines.
Read definitionVoxtral TTS
An open-weights, 4-billion-parameter text-to-speech model released by Mistral AI, utilizing a hybrid architecture of autoregressive and flow-matching generation.
Read definitionWake Word Detection
Wake word detection is the always-on, on-device process that listens continuously for a specific trigger phrase (like 'Hey Siri' or 'Alexa') and activates the full voice pipeline only when it hears one, without sending audio to the cloud until then.
Read definitionWorld Model
A World Model is an AI system that develops an internal representation of the physical world, learning spatial-temporal dynamics and cause-and-effect relationships to simulate realistic environments and predict future states.
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