# What is a Large Concept Model (LCM)? — QANATONE > An LCM is an experimental AI model that works with whole sentences, or ideas, instead of individual words. Meta introduced the first one. Kaynak: https://www.qanatone.com/en/nedir/lcm-nedir/ --- [Explainers](https://www.qanatone.com/en/nedir/) # What is a Large Concept Model (LCM)? 15 Sep 2026 2 min read Model Type · LCM An LCM is an experimental AI model that works with whole sentences, or ideas, instead of individual words. Meta introduced the first one. ## What is an LCM? Today's [large language models](https://www.qanatone.com/en/nedir/buyuk-dil-modelleri-nedir/) (LLMs) generate text one [token](https://www.qanatone.com/en/nedir/token-nedir/) at a time, predicting the next piece of a word at every step. People, when they speak, usually form the idea first and then choose the words. A Large Concept Model tries something closer to that second path: the unit it predicts is a "concept" that represents the meaning of a whole sentence. Meta's research team introduced the approach in a paper published in December 2024. ## How does it work? - Text is split into sentences. - Each sentence is turned into an [embedding](https://www.qanatone.com/en/nedir/embedding-nedir/) vector that carries its meaning. Meta used a system called SONAR, which represents many languages in the same meaning space. - The model looks at the vectors of earlier sentences and predicts the vector of the next one. - The predicted vector is turned back into a sentence in the desired language. Because meaning is represented independently of language, the same model can work at the level of ideas across many languages. ## How is it different from an LLM? An analogy: an LLM is like someone typing a text one keystroke at a time. An LCM resembles a writer who first lines up the main ideas of a paragraph and then builds the sentences. The theoretical advantage is better coherence over long texts and reasoning that does not depend on a particular language. LCMs are still at the research stage. Widely used chat assistants continue to run on token based LLMs. ## Why follow it? The LCM is one of the experiments showing that language models may be able to work at a more abstract level than word prediction. It is not something businesses will use directly in the short term, but it is a useful idea to watch for where AI models may be heading. ## More articles [Marketing · Basics ### What does marketing mean? Definition and the 4Ps 15 Sep 2026 · 2 min](https://www.qanatone.com/en/nedir/marketing-ne-demek/)[Model Type · MLM ### What is a masked language model (MLM)? 15 Sep 2026 · 2 min](https://www.qanatone.com/en/nedir/mlm-nedir/)[Safety · Guardrails ### What are guardrails in AI? 15 Sep 2026 · 2 min](https://www.qanatone.com/en/nedir/guardrail-nedir/)[Web · Mobile Friendly ### How to make a website mobile friendly 15 Sep 2026 · 2 min](https://www.qanatone.com/en/nedir/mobil-uyumlu-site-nasil-yapilir/)[Model Type · MoE ### What is Mixture of Experts (MoE)? 15 Sep 2026 · 2 min](https://www.qanatone.com/en/nedir/moe-nedir/)[Architecture · Orchestration ### What is orchestration in AI systems? 15 Sep 2026 · 2 min](https://www.qanatone.com/en/nedir/orkestrasyon-nedir/)[Model Type · SAM ### What is the Segment Anything Model (SAM)? 15 Sep 2026 · 2 min](https://www.qanatone.com/en/nedir/sam-nedir/)[Model Type · SLM ### What is a small language model (SLM)? 15 Sep 2026 · 2 min](https://www.qanatone.com/en/nedir/slm-nedir/)