Claude Code adds Sonnet 5.5 API default and gateway spend totals
Claude Code v2.1.284 says Sonnet 5.5 is now the default Sonnet model on the Anthropic API. For Claude apps gateway users running this version or later, /usage and the status line can show dollar amounts against the monthly spend limit.
SessionWatcher editorial · Published · Updated · Source announcement: 2026-09-28
Related guide: How to check your Claude Code usage
Sonnet 5.5 is the API default Sonnet model
Anthropic’s Claude Code v2.1.284 release notes say Claude Sonnet 5.5 is now the default Sonnet model on the Anthropic API. The note lists a 1-million-token context window and API pricing of $2 per million tokens for input and $10 per million for output, with cache reads at $0.20 per million tokens.
Sources: v2.1.284
Gateway users can see spend in Claude Code
The release adds dollar amounts to the Claude apps gateway spend limit in /usage and the status line. The change applies when the gateway runs this version or later. The example in the release notes shows spending against a monthly limit; the release does not state that this changes the limit itself.
Sources: v2.1.284
AI assisted reporting, checked against the linked official sources. Source pages checked 2026-10-03. Editorial process and corrections.