Frontier models.
The most powerful AI models, built by a handful of large labs and used by millions of people every day.
What it is.
- A model is the trained AI itself. ChatGPT, Claude and Gemini are apps built on top of models.
- The leading models today come from OpenAI (GPT-6), Anthropic (Claude Opus 5.5) and Google (Gemini 4).
- They cost billions to train, so only a few companies make them. New versions arrive every few months.
Why it matters to you.
- They are all very capable. The differences show up in writing style, coding, cost and safety.
- Avoid locking your business to one model. Today's leader is often overtaken within a year.
- Business versions do not train on your data by default. Check the terms before staff use free versions.