LLM — A large language model — the neural network behind tools like Claude and ChatGPT, trained on huge amounts of text to predict what comes next.
context window — The maximum amount of text a model can consider at once — its working memory for the current conversation or task.
token — The chunk of text a model reads and writes in — roughly three-quarters of a word — and the unit AI usage is billed in.
Why it matters
Conversational flows leave beta with declarative state shapes and router response formats, and the release fixes Anthropic defaults — Sonnet 4.6's 1M context windowThe maximum amount of text a model can consider at once — its working memory for the current conversation or task.Full definition → mapping and a higher max_tokenThe chunk of text a model reads and writes in — roughly three-quarters of a word — and the unit AI usage is billed in.Full definition → for large tool calls.
