fix: correct OpenRouter model IDs — claude-haiku-4.5, claude-sonnet-4.5

OpenRouter uses short names (anthropic/claude-haiku-4.5) not dated IDs
(anthropic/claude-haiku-4-5-20251001). Fixed across all files.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: CreatmanCEO

backend/config.py

@@ -12,12 +12,12 @@ class Settings(BaseSettings):
     openrouter_api_key: SecretStr = SecretStr("")
 
     # Model routing — Pool A (simple/medium)
-    model_pool_a_primary: str = "openrouter/anthropic/claude-haiku-4-5-20251001"
+    model_pool_a_primary: str = "openrouter/anthropic/claude-haiku-4.5"
     model_pool_a_fallback: str = "gemini/gemini-2.5-flash"
 
     # Model routing — Pool B (complex tasks)
-    model_pool_b_default: str = "openrouter/anthropic/claude-haiku-4-5-20251001"
-    model_pool_b_complex: str = "openrouter/anthropic/claude-sonnet-4-5-20250514"
+    model_pool_b_default: str = "openrouter/anthropic/claude-haiku-4.5"
+    model_pool_b_complex: str = "openrouter/anthropic/claude-sonnet-4.5"
 
     llm_temperature: float = 0.1
 

backend/eval/batch_runner.py

@@ -177,8 +177,8 @@ def estimate_cost(model: str, tokens_in: int, tokens_out: int, response=None) ->
 
     # Fallback: manual approximate pricing (USD per 1M tokens)
     pricing = {
-        "openrouter/anthropic/claude-haiku-4-5-20251001": {"input": 0.80, "output": 4.00},
-        "openrouter/anthropic/claude-sonnet-4-5-20250514": {"input": 3.00, "output": 15.00},
+        "openrouter/anthropic/claude-haiku-4.5": {"input": 0.80, "output": 4.00},
+        "openrouter/anthropic/claude-sonnet-4.5": {"input": 3.00, "output": 15.00},
         "gemini/gemini-2.5-flash": {"input": 0.15, "output": 0.60},
     }
 

backend/eval/metrics_api.py

@@ -10,8 +10,8 @@
 
 # Sample metrics for demo (used when no eval has been run yet)
 SAMPLE_METRICS = {
-    "openrouter/anthropic/claude-haiku-4-5-20251001": {
-        "model": "openrouter/anthropic/claude-haiku-4-5-20251001",
+    "openrouter/anthropic/claude-haiku-4.5": {
+        "model": "openrouter/anthropic/claude-haiku-4.5",
         "pool": "pool-a + pool-b",
         "total_cases": 48,
         "accuracy": 0.938,
@@ -34,8 +34,8 @@
         "avg_tokens_per_request": 850,
         "error_rate": 0.021,
     },
-    "openrouter/anthropic/claude-sonnet-4-5-20250514": {
-        "model": "openrouter/anthropic/claude-sonnet-4-5-20250514",
+    "openrouter/anthropic/claude-sonnet-4.5": {
+        "model": "openrouter/anthropic/claude-sonnet-4.5",
         "pool": "pool-b-upgrade",
         "total_cases": 48,
         "accuracy": 0.958,
@@ -50,9 +50,9 @@
 
 
 POOL_MAP = {
-    "openrouter/anthropic/claude-haiku-4-5-20251001": "pool-a + pool-b",
+    "openrouter/anthropic/claude-haiku-4.5": "pool-a + pool-b",
     "gemini/gemini-2.5-flash": "fallback",
-    "openrouter/anthropic/claude-sonnet-4-5-20250514": "pool-b-upgrade",
+    "openrouter/anthropic/claude-sonnet-4.5": "pool-b-upgrade",
 }
 
 
@@ -95,12 +95,12 @@ async def list_models():
             },
             "pool-b": {
                 "description": "Complex tasks — reasoning required",
-                "models": ["anthropic/claude-haiku-4-5-20251001"],
+                "models": ["anthropic/claude-haiku-4.5"],
                 "tasks": ["detect_anomalies", "interpret_anomaly", "general_question"],
             },
             "pool-b-upgrade": {
                 "description": "Deep reasoning — comprehensive analysis",
-                "models": ["anthropic/claude-sonnet-4-5-20250514"],
+                "models": ["anthropic/claude-sonnet-4.5"],
                 "tasks": ["calibration_advice"],
             },
         }

backend/services/llm_router.py

@@ -30,7 +30,7 @@ def create_router() -> Router:
     model_list = [
         # Pool A — simple/medium tasks
         {"model_name": "pool-a", "litellm_params": {
-            "model": "openrouter/anthropic/claude-haiku-4-5-20251001",
+            "model": "openrouter/anthropic/claude-haiku-4.5",
             "api_key": or_key,
         }},
         {"model_name": "pool-a", "litellm_params": {
@@ -40,7 +40,7 @@ def create_router() -> Router:
 
         # Pool B — complex tasks
         {"model_name": "pool-b", "litellm_params": {
-            "model": "openrouter/anthropic/claude-haiku-4-5-20251001",
+            "model": "openrouter/anthropic/claude-haiku-4.5",
             "api_key": or_key,
         }},
         {"model_name": "pool-b", "litellm_params": {
@@ -50,11 +50,11 @@ def create_router() -> Router:
 
         # Pool B upgrade — deep reasoning
         {"model_name": "pool-b-upgrade", "litellm_params": {
-            "model": "openrouter/anthropic/claude-sonnet-4-5-20250514",
+            "model": "openrouter/anthropic/claude-sonnet-4.5",
             "api_key": or_key,
         }},
         {"model_name": "pool-b-upgrade", "litellm_params": {
-            "model": "openrouter/anthropic/claude-haiku-4-5-20251001",
+            "model": "openrouter/anthropic/claude-haiku-4.5",
             "api_key": or_key,
         }},
     ]

backend/tests/test_eval.py

@@ -173,5 +173,5 @@ def test_gemini_flash_cost(self):
 
     def test_sonnet_more_expensive(self):
         flash_cost = estimate_cost("gemini/gemini-2.5-flash", 1000, 500)
-        sonnet_cost = estimate_cost("anthropic/claude-sonnet-4-5-20250514", 1000, 500)
+        sonnet_cost = estimate_cost("anthropic/claude-sonnet-4.5", 1000, 500)
         assert sonnet_cost > flash_cost