You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ModelsArea: what it touches
ImprovementsKind: in v2.1.305,
ImprovementsSection of the release
Unclear It is not clear which models get a different context size.
What
The context window is how much text a model can take in at once, counted in tokens (small chunks of words). Claude Code no longer assumes a 1 million token window for models that are billed past 200,000 tokens without a limit. It now uses new checks on the window the service reports and on the long window available without opting in.
Why
The context size Claude Code shows for some models may change.
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 which models get a different context size.
