The AI terms that
actually matter.
Clear, technical definitions of 130 key concepts — written by AI engineers, not marketers.
NVIDIA Parakeet TDT
NVIDIA's Parakeet TDT 1.1B is the fastest open-source ASR model available, achieving an RTFx near 2,000× real-time — processing audio 6.5× faster than Canary-Qwen at the cost of some accuracy.
Read definitionOKF (Open Knowledge Format)
OKF is an open specification from Google Cloud, published June 2026 under Apache-2.0, for representing an organization's curated knowledge as a directory of plain Markdown files with YAML frontmatter and explicit links between concepts. It is meant to be authored by humans and read (and updated) directly by AI agents, keeping relationships explicit rather than re-deriving them at query time the way RAG does.
Read definitionOmniFlatten
OmniFlatten is a full-duplex, end-to-end GPT model for seamless voice conversation that converts multi-stream speech and text into a single flattened token sequence, enabling a standard LLM backbone to handle simultaneous listening and speaking.
Read definitionOmniVoice
A massively multilingual open-source TTS model by Xiaomi supporting 646 languages with zero-shot voice cloning and voice design, running 40× faster than real-time.
Read definitionOpenClaw
OpenClaw is an open-source, local-first autonomous AI agent that runs as a persistent daemon on your own hardware, connecting to any LLM backend and operated through messaging platforms like WhatsApp, Telegram, or Discord.
Read definitionOrpheus TTS
A Llama 3-based open-source TTS model by Canopy Labs with human-level expressiveness, inline emotion tag control, zero-shot voice cloning, and real-time streaming — the highest-quality open voice model for conversational AI.
Read definitionPhysical AI
Physical AI refers to embodied artificial intelligence systems designed to sense, comprehend, and interact directly with the physical world, bridging the gap between digital cognition and real-world action.
Read definitionPi (Coding Agent Harness)
Pi is a minimal, open-source (MIT) coding-agent harness created by Mario Zechner (earendil-works). Its thesis: a capable coding agent needs only four tools — read, write, edit, bash — and a tiny system prompt, with everything else added as hot-reloadable TypeScript extensions. Despite shipping without MCP, sub-agents, or plan mode, Pi ranked #2 on Terminal-Bench with Claude Opus.
Read definitionPrefill-Decode Disaggregation (PD Disaggregation)
Prefill-decode disaggregation is an LLM serving architecture that runs the two phases of inference, prefill (reading the prompt) and decode (generating tokens one at a time), on separate GPU pools and ships the KV cache between them. Because prefill is compute-bound and decode is memory-bandwidth-bound, splitting them removes the interference that makes colocated serving stall streaming responses, and lets each pool be sized and tuned independently.
Read definitionPrompt Engineering
Prompt engineering is the practice of designing and refining the text inputs given to an AI model to reliably produce accurate, useful, and well-formatted outputs — without changing the model's weights.
Read definitionPrompt Injection
Prompt Injection is a critical vulnerability in Large Language Models (LLMs) where malicious, untrusted instructions are embedded into user inputs or external data to manipulate the model into ignoring its safety guidelines and executing unintended actions.
Read definitionProsody
Prosody is the melody, rhythm, and stress pattern of speech, carried by pitch (F0), duration, and energy, which turns flat, monotone synthetic audio into speech that sounds like it means something.
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