diff --git a/sdk/agentguard/cost.py b/sdk/agentguard/cost.py
index 3fdcf77..03c6f94 100644
--- a/sdk/agentguard/cost.py
+++ b/sdk/agentguard/cost.py
@@ -30,8 +30,10 @@ class UnknownModelWarning(UserWarning):
     ("anthropic", "claude-3-5-sonnet-20241022"): (0.003, 0.015),
     ("anthropic", "claude-3-5-haiku-20241022"): (0.0008, 0.004),
     ("anthropic", "claude-3-opus-20240229"): (0.015, 0.075),
+    ("anthropic", "claude-sonnet-4-20250514"): (0.003, 0.015),
     ("anthropic", "claude-sonnet-4-5-20250929"): (0.003, 0.015),
     ("anthropic", "claude-haiku-4-5-20251001"): (0.0008, 0.004),
+    ("anthropic", "claude-opus-4-20250515"): (0.015, 0.075),
     ("anthropic", "claude-opus-4-6"): (0.015, 0.075),
     # Google
     ("google", "gemini-1.5-pro"): (0.00125, 0.005),
diff --git a/sdk/agentguard/instrument.py b/sdk/agentguard/instrument.py
index d135db0..d86b75d 100644
--- a/sdk/agentguard/instrument.py
+++ b/sdk/agentguard/instrument.py
@@ -236,7 +236,7 @@ def _traced_openai_create(
 ) -> Any:
     """Shared traced wrapper for sync OpenAI create calls."""
     model = kwargs.get("model", "unknown")
-    with tracer.trace(f"llm.openai.{model}") as ctx:
+    with tracer.trace(f"llm.openai.{model}", data={"model": model, "provider": "openai"}) as ctx:
         result = original(*args, **kwargs)
         _emit_llm_result(ctx, budget_guard, model, "openai", getattr(result, "usage", None))
         return result
@@ -295,7 +295,7 @@ def _patch_anthropic_instance(client: Any, tracer: Any, budget_guard: Any = None
     @functools.wraps(original_create)
     def traced_create(*args: Any, **kwargs: Any) -> Any:
         model = kwargs.get("model", "unknown")
-        with tracer.trace(f"llm.anthropic.{model}") as ctx:
+        with tracer.trace(f"llm.anthropic.{model}", data={"model": model, "provider": "anthropic"}) as ctx:
             result = original_create(*args, **kwargs)
             _emit_llm_result(ctx, budget_guard, model, "anthropic", getattr(result, "usage", None))
             return result
@@ -436,7 +436,7 @@ def _patch_openai_async_instance(client: Any, tracer: Any, budget_guard: Any = N
     @functools.wraps(original_create)
     async def traced_create(*args: Any, **kwargs: Any) -> Any:
         model = kwargs.get("model", "unknown")
-        async with tracer.trace(f"llm.openai.{model}") as ctx:
+        async with tracer.trace(f"llm.openai.{model}", data={"model": model, "provider": "openai"}) as ctx:
             result = await original_create(*args, **kwargs)
             _emit_llm_result(ctx, budget_guard, model, "openai", getattr(result, "usage", None))
             return result
@@ -494,7 +494,7 @@ def _patch_anthropic_async_instance(client: Any, tracer: Any, budget_guard: Any
     @functools.wraps(original_create)
     async def traced_create(*args: Any, **kwargs: Any) -> Any:
         model = kwargs.get("model", "unknown")
-        async with tracer.trace(f"llm.anthropic.{model}") as ctx:
+        async with tracer.trace(f"llm.anthropic.{model}", data={"model": model, "provider": "anthropic"}) as ctx:
             result = await original_create(*args, **kwargs)
             _emit_llm_result(ctx, budget_guard, model, "anthropic", getattr(result, "usage", None))
             return result