Plan event · 30 Sept 2026
All plan events · 31 providers tracked
ZenMuxmodels
What moved
Claude Sonnet 5 was the newest Sonnet model on ZenMux Builder Starter, Max and Ultra → Claude Sonnet 5.5 added to ZenMux Builder Starter, Max and Ultra at $2 input / $10 output / $0.20 cached read / $2.50 cache write per 1M
The ZenMux public model catalogue published anthropic/claude-sonnet-5.5 on 2026-09-28 with $2 input / $10 output / $0.20 cached read, a $2.50 5-minute cache write and $4.00 for 1 hour, so the model joins the shared Builder model list that all three tracked subscription tiers render. ZenMux publishes no cache discount of its own; the row stores the catalogue figures.
Verified 2026-09-30 · source
Affected plans
- Builder Starter$20/mo
- Builder Max$100/mo
- Builder Ultra$200/mo