[model-inventory] Add missing MAI-Code model entry and correct Copilot cache-read pricing (#52191)

Author: Copilot

actions/setup/js/models.json

@@ -408,7 +408,7 @@
           "cost": {
             "input": "2.5e-07",
             "output": "2e-06",
-            "cache_read": "2.5000000000000002e-08"
+            "cache_read": "2e-08"
           },
           "provider_type": "openai",
           "wire_api": "responses"
@@ -435,7 +435,7 @@
           "cost": {
             "input": "1.75e-06",
             "output": "1.4e-05",
-            "cache_read": "1.75e-07"
+            "cache_read": "1.7e-07"
           },
           "provider_type": "openai",
           "wire_api": "responses"
@@ -453,7 +453,7 @@
           "cost": {
             "input": "7.5e-07",
             "output": "4.5e-06",
-            "cache_read": "7.5e-08"
+            "cache_read": "7e-08"
           },
           "provider_type": "openai",
           "wire_api": "responses"
@@ -512,11 +512,21 @@
           "provider_type": "openai",
           "wire_api": "completions"
         },
+        "mai-code-1.1-flash": {
+          "cost": {
+            "input": "2e-07",
+            "output": "1.2e-06",
+            "cache_read": "2e-08",
+            "cache_write": "2.5e-07"
+          },
+          "provider_type": "openai",
+          "wire_api": "responses"
+        },
         "mai-code-1-flash-picker": {
           "cost": {
             "input": "7.5e-07",
             "output": "4.5e-06",
-            "cache_read": "7.5e-08"
+            "cache_read": "7e-08"
           },
           "provider_type": "openai",
           "wire_api": "responses"
@@ -543,7 +553,7 @@
           "cost": {
             "input": "2e-06",
             "output": "6e-06",
-            "cache_read": "5e-08"
+            "cache_read": "5e-07"
           },
           "provider_type": "openai",
           "wire_api": "completions"

pkg/cli/data/models.json

@@ -408,7 +408,7 @@
           "cost": {
             "input": "2.5e-07",
             "output": "2e-06",
-            "cache_read": "2.5000000000000002e-08"
+            "cache_read": "2e-08"
           },
           "provider_type": "openai",
           "wire_api": "responses"
@@ -435,7 +435,7 @@
           "cost": {
             "input": "1.75e-06",
             "output": "1.4e-05",
-            "cache_read": "1.75e-07"
+            "cache_read": "1.7e-07"
           },
           "provider_type": "openai",
           "wire_api": "responses"
@@ -453,7 +453,7 @@
           "cost": {
             "input": "7.5e-07",
             "output": "4.5e-06",
-            "cache_read": "7.5e-08"
+            "cache_read": "7e-08"
           },
           "provider_type": "openai",
           "wire_api": "responses"
@@ -512,11 +512,21 @@
           "provider_type": "openai",
           "wire_api": "completions"
         },
+        "mai-code-1.1-flash": {
+          "cost": {
+            "input": "2e-07",
+            "output": "1.2e-06",
+            "cache_read": "2e-08",
+            "cache_write": "2.5e-07"
+          },
+          "provider_type": "openai",
+          "wire_api": "responses"
+        },
         "mai-code-1-flash-picker": {
           "cost": {
             "input": "7.5e-07",
             "output": "4.5e-06",
-            "cache_read": "7.5e-08"
+            "cache_read": "7e-08"
           },
           "provider_type": "openai",
           "wire_api": "responses"
@@ -543,7 +553,7 @@
           "cost": {
             "input": "2e-06",
             "output": "6e-06",
-            "cache_read": "5e-08"
+            "cache_read": "5e-07"
           },
           "provider_type": "openai",
           "wire_api": "completions"

pkg/cli/model_costs_test.go

@@ -25,6 +25,23 @@ func TestFindKimiK3Pricing(t *testing.T) {
 	assert.InDelta(t, 0.0000003, pricing["cache_read"], 1e-12)
 }
 
+func TestFindMaiCode11FlashPricing(t *testing.T) {
+	pricing, ok := findModelPricing("github-copilot", "mai-code-1.1-flash")
+	require.True(t, ok)
+	assert.InDelta(t, 0.0000002, pricing["input"], 1e-12)
+	assert.InDelta(t, 0.0000012, pricing["output"], 1e-12)
+	assert.InDelta(t, 0.00000002, pricing["cache_read"], 1e-12)
+	assert.InDelta(t, 0.00000025, pricing["cache_write"], 1e-12)
+}
+
+func TestFindGrok45CacheReadPricing(t *testing.T) {
+	pricing, ok := findModelPricing("github-copilot", "grok-4.5")
+	require.True(t, ok)
+	assert.InDelta(t, 0.000002, pricing["input"], 1e-12)
+	assert.InDelta(t, 0.000006, pricing["output"], 1e-12)
+	assert.InDelta(t, 0.0000005, pricing["cache_read"], 1e-12)
+}
+
 func TestComputeModelInferenceAIC(t *testing.T) {
 	aic := computeModelInferenceAIC("anthropic", "claude-sonnet-4.6", 1000, 200, 400, 50, 25)
 	assert.InDelta(t, 0.54825, aic, 1e-9)