Claude Web tests Opus 4.7 rollout

Hot take: this looks more like a staged rollout or A/B test than a clean public launch, which is exactly how frontier model upgrades tend to leak now.

• –The strongest signal is the model slug itself; those identifiers usually change before marketing pages do.
• –Reports say Claude Code still shows 4.6, which hints at partial rollout rather than a full product-wide switch.
• –If true, Anthropic may be validating the model in Claude Web first before widening access across apps and APIs.
• –For developers, the practical question is whether 4.7 changes behavior enough to affect prompt tuning, eval baselines, or production routing.
• –Until Anthropic publishes release notes, treat this as an unconfirmed sighting, not a launched model.