diff --git a/bin/gstack-autoplan b/bin/gstack-autoplan
index a7b3194ea..026f9c5d4 100755
--- a/bin/gstack-autoplan
+++ b/bin/gstack-autoplan
@@ -44,7 +44,7 @@ import { exportPublic } from '../lib/autoplan-public';
 import { migrateRun } from '../lib/autoplan-migrate';
 import { reviseRun } from '../lib/autoplan-revise';
 import { pendingAmendments, type RunState, type Voice } from '../lib/autoplan-state';
-import { FILES, RunError, currentPhase, initRun, markOutside, nextStep, readState, resumeRun, statusLines, submitResult, withRunLock, writeState, type NextOptions } from '../lib/autoplan-run';
+import { FILES, RunError, currentPhase, fitReservation, initRun, markOutside, nextStep, readState, resumeRun, retireAttempt, statusLines, submitResult, withRunLock, writeState, type NextOptions } from '../lib/autoplan-run';
 import { driverFile, type Phase } from '../lib/autoplan-prompts';
 import { EXIT, exitTableHelp } from '../lib/headless-artifacts';
 import { createRunner, familyConflict, type RunnerId } from '../lib/outside-voice-runner';
@@ -321,6 +321,8 @@ async function doRun(out: string, rest: string[], json: boolean): Promise<number
     const row = isApi(voice) ? pricingRow(modelOf(voice)) : undefined;
     return row ? +((fs.statSync(promptFile).size / 3 * row.input_per_mtok + (maxTokens ?? DEFAULT_MAX_TOKENS) * row.output_per_mtok) / 1e6).toFixed(6) : undefined;
   };
+  const usdOf = (voice: Voice, used: { input_tokens?: number; output_tokens?: number } | undefined) =>
+    isApi(voice) && pricingRow(modelOf(voice)) && typeof used?.input_tokens === 'number' && typeof used?.output_tokens === 'number' ? estimateCostUsd({ input: used.input_tokens, output: used.output_tokens }, modelOf(voice)) : undefined;
   for (let guard = 0; guard < 40; guard++) {
     const code = withRunLock(out, () => doNext(out, rest, true, price));
     if (code !== EXIT.ok) return code;
@@ -335,6 +337,8 @@ async function doRun(out: string, rest: string[], json: boolean): Promise<number
       const open = v.attempts?.find(a => a.state === 'dispatched');
       if (!open) continue;
       const runnerId = voice === 'native' ? nativeRunner : outsideRunner;
+      const cost = price(voice, open.prompt);
+      if (cost !== undefined) withRunLock(out, () => fitReservation(out, phase as Phase, voice, open.attempt, cost));
       const runner = createRunner(runnerId);
       const remaining = deadlineAt ? deadlineAt - Date.now() : runnerId === 'api' ? apiTimeoutMs(maxTokens) : 300_000;
       if (remaining <= 0) { withRunLock(out, () => { const s = readState(out); s.status = 'interrupted'; writeState(s); }); process.stdout.write(resultLineFor('interrupted', out) + '\n'); return EXIT.fail; }
@@ -346,12 +350,12 @@ async function doRun(out: string, rest: string[], json: boolean): Promise<number
       if (res.status !== 'completed' && res.status !== 'unverified') {
         if (voice === 'outside') { withRunLock(out, () => markOutside(out, phase as Phase, 'unavailable', `${res.runner} ${res.status}${res.detail ? `: ${res.detail}` : ''}`)); continue; }
         process.stderr.write(`gstack-autoplan run: native voice ${res.status}${res.reason ? `: ${res.reason}` : ''}${res.detail ? `: ${res.detail}` : ''}\n`);
-        withRunLock(out, () => { const s = readState(out); s.status = 'interrupted'; writeState(s); });
+        withRunLock(out, () => { retireAttempt(out, phase as Phase, voice, open.attempt, usdOf(voice, res.usage) ?? 'unknown'); const s = readState(out); s.status = 'interrupted'; writeState(s); });
         process.stdout.write(resultLineFor('interrupted', out) + '\n');
         return EXIT.fail;
       }
-      const used = res.usage;
-      const usage = isApi(voice) && pricingRow(modelOf(voice)) && typeof used.input_tokens === 'number' && typeof used.output_tokens === 'number' ? ['--usage-usd', String(estimateCostUsd({ input: used.input_tokens, output: used.output_tokens }, modelOf(voice)))] : [];
+      const usd = usdOf(voice, res.usage);
+      const usage = usd === undefined ? [] : ['--usage-usd', String(usd)];
       try { withRunLock(out, () => doSubmit(out, ['--phase', phase, '--voice', voice, '--result', `${open.result}.raw`, '--model', res.model ?? modelOf(voice), '--attempt', open.attempt, '--runner', res.runner, ...usage], true)); }
       catch (e) {
         if (voice !== 'outside' || !(e instanceof RunError)) throw e;
diff --git a/lib/autoplan-run.ts b/lib/autoplan-run.ts
index 460f15dad..a20d0615c 100644
--- a/lib/autoplan-run.ts
+++ b/lib/autoplan-run.ts
@@ -31,7 +31,7 @@ import type { RunStatus } from './headless-artifacts';
 import { sha256File } from './headless-artifacts';
 import { outsideConsent } from './outside-consent';
 import { familyConflict, modelFamily } from './outside-voice-runner';
-import { renderSpend, reserve, settle, summarize, readLedger } from './spend-ledger';
+import { SpendCapExceeded, release, renderSpend, reserve, settle, summarize, readLedger } from './spend-ledger';
 import { DEFAULT_MAX_ROUNDS, attemptEstimate, overCap, resumeStop, roundCap, roundOf, roundsLine, stopForBudget, stopLines } from './autoplan-budget';
 import { annotateConfirm, confirmBlock } from './autoplan-confirm';
 
@@ -413,6 +413,33 @@ export function closeOutside(state: RunState, phase: Phase, status: 'unavailable
   return lines;
 }
 
+/** Raise an open attempt's reservation to what the call about to run can cost; the cap still binds (SPEND_CAP_EXCEEDED). */
+export function fitReservation(out: string, phase: Phase, voice: Voice, attempt: string, usd: number): void {
+  const state = readState(out);
+  const a = voiceState(state, phase, voice).attempts?.find(x => x.attempt === attempt);
+  if (!a || usd <= a.estimate_usd + 1e-9) return;
+  const file = path.join(out, FILES.spend);
+  release(file, attempt);
+  try { reserve(file, attempt, usd); }
+  catch (e) {
+    reserve(file, attempt, a.estimate_usd);
+    if (e instanceof SpendCapExceeded) throw new RunError('SPEND_CAP_EXCEEDED', `${attempt} (${phase} ${voice}) was admitted at ${a.estimate_usd}; the call it is about to make can cost ${usd}, past the cap ${state.spend_cap_usd}`, 3);
+    throw e;
+  }
+  a.estimate_usd = usd;
+  writeState(state);
+}
+
+/** A paid call that failed (truncated, refused): settle what it cost and supersede its attempt, so a retry is admitted afresh. */
+export function retireAttempt(out: string, phase: Phase, voice: Voice, attempt: string, usd: number | 'unknown'): void {
+  const state = readState(out);
+  const a = voiceState(state, phase, voice).attempts?.find(x => x.attempt === attempt);
+  if (a) { a.state = 'superseded'; a.terminal_at = now(); }
+  settle(path.join(out, FILES.spend), attempt, usd);
+  journal(out, { event: 'superseded', attempt, phase, voice, usage_usd: usd });
+  writeState(state);
+}
+
 /** Mark the outside voice of the current phase unavailable/failed (the runner could not run); closes the phase if native is bound. */
 export function markOutside(out: string, phase: Phase, status: 'unavailable' | 'failed', detail: string): RunState {
   const state = readState(out);
diff --git a/test/autoplan-run-api.test.ts b/test/autoplan-run-api.test.ts
index b35cc2c3c..625480be9 100644
--- a/test/autoplan-run-api.test.ts
+++ b/test/autoplan-run-api.test.ts
@@ -104,4 +104,20 @@ describe('gstack-autoplan run --native-runner api --runner api', () => {
     expect(r.stderr).toMatch(/native voice unavailable: truncated: .*output limit/);
     expect(r.state.status).toBe('interrupted');
   }, 150_000);
+
+  test('a truncated call settles what it cost, and a retry with a larger output limit is admitted afresh against the cap', async () => {
+    mode = 'cut';
+    const first = await run('cut-retry', ['--spend-cap', '8']);
+    expect(first.state.status).toBe('interrupted');
+    const truncated = first.state.phases.ceo.native.attempts[0].attempt;
+    const ledger = JSON.parse(fs.readFileSync(path.join(first.out, 'spend.json'), 'utf8'));
+    expect(ledger.reserved.map((r: any) => r.attempt)).not.toContain(truncated);
+    expect(ledger.settled.find((s: any) => s.attempt === truncated).usd).toBeGreaterThan(0);
+    mode = 'ok';
+    calls = 0;
+    const retry = await run('cut-retry', ['--spend-cap', '8', '--max-tokens', '2000000']);
+    expect(retry.status).toBe(3);
+    expect(retry.stdout + retry.stderr).toContain('SPEND_CAP_EXCEEDED');
+    expect(calls).toBe(0);
+  }, 150_000);
 });