fix(cost map): add cached-input pricing and prompt caching for inception/mercury-2.5

litellm/model_prices_and_context_window_backup.json

@@ -34068,6 +34068,7 @@
         "supports_tool_choice": true
     },
     "inception/mercury-2.5": {
+        "cache_read_input_token_cost": 2e-08,
         "input_cost_per_token": 2e-07,
         "litellm_provider": "inception",
         "max_input_tokens": 260000,
@@ -34077,6 +34078,7 @@
         "output_cost_per_token": 7.5e-07,
         "source": "https://docs.inceptionlabs.ai/get-started/models",
         "supports_function_calling": true,
+        "supports_prompt_caching": true,
         "supports_response_schema": true,
         "supports_system_messages": true,
         "supports_tool_choice": true

model_prices_and_context_window.json

@@ -34068,6 +34068,7 @@
         "supports_tool_choice": true
     },
     "inception/mercury-2.5": {
+        "cache_read_input_token_cost": 2e-08,
         "input_cost_per_token": 2e-07,
         "litellm_provider": "inception",
         "max_input_tokens": 260000,
@@ -34077,6 +34078,7 @@
         "output_cost_per_token": 7.5e-07,
         "source": "https://docs.inceptionlabs.ai/get-started/models",
         "supports_function_calling": true,
+        "supports_prompt_caching": true,
         "supports_response_schema": true,
         "supports_system_messages": true,
         "supports_tool_choice": true

tests/test_litellm/test_inception_mercury_2_5_model_metadata.py

@@ -0,0 +1,56 @@
+import json
+from pathlib import Path
+
+from litellm.litellm_core_utils.get_llm_provider_logic import get_llm_provider
+
+
+def test_inception_mercury_2_5_model_info():
+    model = "inception/mercury-2.5"
+    json_path = Path(__file__).parents[2] / "model_prices_and_context_window.json"
+    with open(json_path) as f:
+        model_cost = json.load(f)
+
+    info = model_cost.get(model)
+    assert (
+        info is not None
+    ), f"{model} not found in model_prices_and_context_window.json"
+
+    assert info["litellm_provider"] == "inception"
+    assert info["mode"] == "chat"
+
+    assert info["input_cost_per_token"] == 2e-07
+    assert info["output_cost_per_token"] == 7.5e-07
+    # Regression guard: cached-input pricing must be tracked so cached tokens
+    # are not silently billed at $0.
+    assert info["cache_read_input_token_cost"] == 2e-08
+
+    assert info["max_input_tokens"] == 260000
+    assert info["max_output_tokens"] == 65536
+    assert info["max_tokens"] == 65536
+
+    assert info["supports_function_calling"] is True
+    assert info["supports_prompt_caching"] is True
+    assert info["supports_response_schema"] is True
+    assert info["supports_system_messages"] is True
+    assert info["supports_tool_choice"] is True
+
+    routed_model, provider, _, _ = get_llm_provider(model=model)
+    assert routed_model == model.split("/", 1)[1]
+    assert provider == "inception"
+
+
+def test_inception_mercury_2_5_backup_matches_main():
+    """Ensure the bundled model cost map stays in sync with the canonical file."""
+    repo_root = Path(__file__).parents[2]
+    main_path = repo_root / "model_prices_and_context_window.json"
+    backup_path = repo_root / "litellm" / "model_prices_and_context_window_backup.json"
+
+    with open(main_path) as f:
+        main_cost = json.load(f)
+    with open(backup_path) as f:
+        backup_cost = json.load(f)
+
+    model = "inception/mercury-2.5"
+    assert backup_cost.get(model) == main_cost.get(
+        model
+    ), f"{model} differs between main and backup model cost maps"