14 pages for modelusage.

Events Claude Developer Platform · in the page api/beta/sessions/events …while evaluation was in progress. - `usage: BetaManagedAgentsSpanModelUsage` Aggregate token usage for this evaluation cycle. Sums across all grader model requests within the cycle.… List Events Claude Developer Platform · in the page api/beta/sessions/events/list …while evaluation was in progress. - `usage: BetaManagedAgentsSpanModelUsage` Aggregate token usage for this evaluation cycle. Sums across all grader model requests within the cycle.… Stream Events Claude Developer Platform · in the page api/beta/sessions/events/stream …while evaluation was in progress. - `usage: BetaManagedAgentsSpanModelUsage` Aggregate token usage for this evaluation cycle. Sums across all grader model requests within the cycle.… Threads Claude Developer Platform · in the page api/beta/sessions/threads …while evaluation was in progress. - `usage: BetaManagedAgentsSpanModelUsage` Aggregate token usage for this evaluation cycle. Sums across all grader model requests within the cycle.… Events Claude Developer Platform · in the page api/beta/sessions/threads/events …while evaluation was in progress. - `usage: BetaManagedAgentsSpanModelUsage` Aggregate token usage for this evaluation cycle. Sums across all grader model requests within the cycle.… List Session Thread Events Claude Developer Platform · in the page api/beta/sessions/threads/events/list …while evaluation was in progress. - `usage: BetaManagedAgentsSpanModelUsage` Aggregate token usage for this evaluation cycle. Sums across all grader model requests within the cycle.… Stream Session Thread Events Claude Developer Platform · in the page api/beta/sessions/threads/events/stream …while evaluation was in progress. - `usage: BetaManagedAgentsSpanModelUsage` Aggregate token usage for this evaluation cycle. Sums across all grader model requests within the cycle.… reference Claude Developer Platform · in the page managed-agents/reference …del inference call has completed. Includes `model_usage` (java, php: `modelUsage`; csharp, go: `ModelUsage`) with token counts.… How the agent loop works Claude Code CLI · in the page agent-sdk/agent-loop …u read them. The `usage` field covers only the main agent loop. Use `modelUsage`, or `model_usage` in Python, for whole-tree token and cost accounting. See [Tracking costs and usage](/docs/en/agent-s… Track cost and usage Claude Code CLI · in the page agent-sdk/cost-tracking …(`message.message.id`, `message.message.usage`), per-model cost via `modelUsage` on the result message, and a cumulative total on the result message. * **Python** provides per-step token breakdowns o… Agent SDK reference - Python Claude Code CLI · in the page agent-sdk/python …e = None structured_output: Any = None model_usage: dict[str, ModelUsage] | None = None permission_denials: list[Any] | None = None deferred_tool_use: DeferredToolUse | None = None… Agent SDK reference - TypeScript Claude Code CLI · in the page agent-sdk/typescript …r; total_cost_usd: number; usage: NonNullableUsage; modelUsage: { [modelName: string]: ModelUsage }; permission_denials: SDKPermissionDenial[]; queued_turn_count?: number… Claude Code changelog Claude Code CLI · in the page changelog …er with `--add-dir` for the rule to cover it * Fixed `/cost` and SDK `modelUsage` reporting a turn under the wrong model when the server answered a refusal with a different fallback model than the cli… Model configuration Claude Code CLI · in the page model-config …utput-format json` and `stream-json`; read the actual model from the `modelUsage` field of the [result message](/docs/en/headless.md#get-structured-output) instead. For example, start a session on Op…