Do not show costs in the summary for free models

apps/cli/src/runtime/interactive/exit-summary.test.ts

@@ -115,4 +115,28 @@ describe("interactive exit summary", () => {
 		expect(output).not.toContain("  Cost");
 		expect(output).not.toContain("$0.250000");
 	});
+
+	it("zeros persisted cost for free Cline models", () => {
+		const summary = createInteractiveExitSummary({
+			sessionId: "sess_123",
+			row: makeSessionRecord(),
+			messages: [
+				{ role: "user", content: "hello" },
+				{ role: "assistant", content: "hi" },
+			],
+			usage: {
+				inputTokens: 100,
+				outputTokens: 50,
+				cacheReadTokens: 0,
+				cacheWriteTokens: 0,
+				totalCost: 0.25,
+			},
+			shouldZeroCost: true,
+		});
+
+		expect(summary?.totalCost).toBe(0);
+		expect(formatInteractiveExitSummary(summary!)).toContain(
+			"  Cost      $0.00",
+		);
+	});
 });

apps/cli/src/runtime/interactive/exit-summary.ts

@@ -47,6 +47,7 @@ export function createInteractiveExitSummary(input: {
 	row?: SessionRecord;
 	messages?: Message[];
 	usage?: SessionAccumulatedUsage;
+	shouldZeroCost?: boolean;
 }): InteractiveExitSummary | undefined {
 	const sessionId = trim(input.sessionId);
 	if (!sessionId) {
@@ -59,10 +60,13 @@ export function createInteractiveExitSummary(input: {
 		return undefined;
 	}
 
-	const totalCost =
+	let totalCost =
 		asFiniteNumber(input.usage?.totalCost) ??
 		asFiniteNumber(input.row?.metadata?.aggregatedAgentsCost) ??
 		asFiniteNumber(input.row?.metadata?.totalCost);
+	if (input.shouldZeroCost && totalCost !== undefined) {
+		totalCost = 0;
+	}
 
 	return {
 		sessionId,

apps/cli/src/runtime/interactive/session-runtime.ts

@@ -93,6 +93,7 @@ export function createInteractiveSessionRuntime(input: {
 	onTeamEvent: (event: TeamEvent) => void;
 	onPendingPrompts: (event: PendingPromptSnapshot) => void;
 	onPendingPromptSubmitted: (event: PendingPromptSubmittedEvent) => void;
+	shouldZeroExitSummaryCost?: () => boolean;
 }) {
 	let sessionManager: CliCore | undefined;
 	let runtimeHooks: RuntimeHooks | undefined;
@@ -344,6 +345,7 @@ export function createInteractiveSessionRuntime(input: {
 			row,
 			messages,
 			usage,
+			shouldZeroCost: input.shouldZeroExitSummaryCost?.() ?? false,
 		});
 	};
 

apps/cli/src/runtime/run-interactive.ts

@@ -159,6 +159,7 @@ export async function runInteractive(
 	});
 	const providerSettingsManager = new ProviderSettingsManager();
 	let zeroCurrentTurnCost = false;
+	let zeroExitSummaryCost = false;
 
 	const sessionRuntime = createInteractiveSessionRuntime({
 		config,
@@ -183,6 +184,7 @@ export async function runInteractive(
 		onPendingPromptSubmitted: (event) => {
 			uiEvents.emit("pending-prompt-submitted", event);
 		},
+		shouldZeroExitSummaryCost: () => zeroExitSummaryCost,
 	});
 	let modeChangePromise: Promise<void> | undefined;
 	let modeChangeTarget: "plan" | "act" | undefined;
@@ -487,6 +489,7 @@ export async function runInteractive(
 				commandOutput = chatCommandResult.commandOutput;
 				zeroTurnCost = await shouldZeroClineFreeModelCost(config);
 				zeroCurrentTurnCost = zeroTurnCost;
+				zeroExitSummaryCost ||= zeroTurnCost;
 				const {
 					prompt: userInput,
 					userImages,