Under the hoodTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
ModelsArea: what it touches
Internal ChangesKind: in v2.1.311,
Internal ChangesSection of the release
Unclear It is not clear where the served value comes from or whether your context window size changes.
What
The context window is how much text a model can take in at once. Claude Code keeps details about each model, and these now include a served window value. The long context size available without opting in is now worked out from that value. Before, it came from a lookup based on the model name alone.
Why
This can change how large Claude Code thinks a model's context window is.
How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtIt is not clear where the served value comes from or whether your context window size changes.
