diff --git a/src/infra/heartbeat-runner.cost-cap.test.ts b/src/infra/heartbeat-runner.cost-cap.test.ts
index e65b48fb11c..f91e7b7157b 100644
--- a/src/infra/heartbeat-runner.cost-cap.test.ts
+++ b/src/infra/heartbeat-runner.cost-cap.test.ts
@@ -198,6 +198,12 @@ describe("config catalog lookup", () => {
     expect(cost).toBeCloseTo(0.0025, 4); // gpt-4o = $2.5/M
   });
 
+  it("matches hardcoded table with nested provider prefix", () => {
+    // "openrouter/anthropic/claude-opus-4" should strip to "claude-opus-4"
+    const cost = estimateRunCost("x".repeat(4000), "openrouter/anthropic/claude-opus-4");
+    expect(cost).toBeCloseTo(0.015, 3); // claude-opus-4 = $15/M
+  });
+
   it("ignores catalog entry with negative cost.input", () => {
     const cfg = {
       models: {
diff --git a/src/infra/heartbeat-runner.ts b/src/infra/heartbeat-runner.ts
index 6d2f2f0e0c8..61aaa513178 100644
--- a/src/infra/heartbeat-runner.ts
+++ b/src/infra/heartbeat-runner.ts
@@ -1262,8 +1262,9 @@ function resolveInputPricePerToken(modelId: string, cfg?: OpenClawConfig): numbe
       }
     }
   }
-  // Strip provider prefix (e.g. "openai/gpt-4o" -> "gpt-4o") for hardcoded table match.
-  const slash = modelId.indexOf("/");
+  // Strip provider prefix (e.g. "openai/gpt-4o" or "openrouter/anthropic/claude-opus-4"
+  // -> "gpt-4o" / "claude-opus-4") for hardcoded table match.
+  const slash = modelId.lastIndexOf("/");
   const bareModel = slash !== -1 ? modelId.slice(slash + 1) : modelId;
   const lower = bareModel.toLowerCase();
   for (const [prefix, price] of SORTED_PRICING_ENTRIES) {