diff --git a/src/models.ts b/src/models.ts
index 6eb6c05f..4d65a288 100644
--- a/src/models.ts
+++ b/src/models.ts
@@ -641,6 +641,16 @@ export function getModelCosts(model: string): ModelCosts | null {
 
   if (pricingCache.has(canonical)) return pricingCache.get(canonical)!
 
+  // Gateway ids such as cp/cline-pass/glm-5.3 survive one prefix strip as
+  // cline-pass/glm-5.3. Price the last path segment through the same aliases
+  // getShortModelName already uses for the label.
+  if (canonical.includes('/')) {
+    const segment = canonical.slice(canonical.lastIndexOf('/') + 1)
+    const aliasedSegment = resolveAlias(segment)
+    if (pricingCache.has(aliasedSegment)) return pricingCache.get(aliasedSegment)!
+    if (pricingCache.has(segment)) return pricingCache.get(segment)!
+  }
+
   const prefixOverride = getPriceOverridePrefix(canonical)
   if (prefixOverride) return prefixOverride
 
diff --git a/tests/models.test.ts b/tests/models.test.ts
index f16c769f..6ab0fba0 100644
--- a/tests/models.test.ts
+++ b/tests/models.test.ts
@@ -69,6 +69,8 @@ describe('getModelCosts', () => {
     expect(sibling).not.toBeNull()
     expect(lower!.inputCostPerToken).toBe(sibling!.inputCostPerToken)
     expect(upper!.outputCostPerToken).toBe(sibling!.outputCostPerToken)
+    expect(getModelCosts('cp/cline-pass/glm-5.3')!.inputCostPerToken).toBe(sibling!.inputCostPerToken)
+    expect(getModelCosts('omniroute:cp/cline-pass/glm-5.3')!.inputCostPerToken).toBe(sibling!.inputCostPerToken)
   })
 })