Claude Code Raises Output Token Ceiling to 128K for Opus 4.6 and Sonnet 4.6

Anthropic / GitHub·medium signal

Recent Claude Code updates raised the maximum output token limit to 64K default for Opus 4.6, with an upper bound of 128K for both Opus 4.6 and Sonnet 4.6 — a 2x increase over the prior ceiling. Additional developer-facing features shipped alongside include MCP Elicitation/ElicitationResult hooks (intercept and override responses before they return), a -n/--name CLI flag for session naming, PostCompact hook for post-compression callbacks, and cron scheduling tools for recurring in-session prompts. The 128K output ceiling matters most for large code generation tasks that previously required multi-turn workarounds.