{"i":11,"slug":"routing-overhead","chart":{"id":"cli-startup-input-tokens","title":"Input tokens a CLI sends for a one-word answer","subtitle":"Per call, mostly the CLI’s own system prompt and tool definitions","kind":"bar","unit":"tokens","yLabel":"Input tokens per call","series":[{"name":"Input tokens per call","points":[{"label":"Claude Code · Claude Haiku 4.5","value":6761,"n":5},{"label":"Codex CLI (default model)","value":17051,"n":5}]}],"note":"Claude Code sums its disjoint input, cache-read and cache-write fields. Codex CLI reports 17,051 input tokens, 13,184 of them read from the cache. The prompt itself is a few tokens.","sourceIds":["agent-routing-overhead"]}}