A new context-window gauge sits next to the model picker in the chat composer. It shows how much of the model's context window your conversation is using, so you know when to wrap up a long thread or start fresh.

One glance is enough

The donut ring fills as your conversation grows: neutral below half, amber in the middle, red when you approach the limit. A tick marks the compaction threshold so you can see when the agent will start summarising older messages. The donut appears after your first turn and updates automatically with every exchange.

Works across every model

The gauge adapts to each model's actual context window — whether it's a model with a documented limit or one with a generous default. No configuration needed.