ModelSelector: add 'Skyvern Optimized' as hard choice (#2558)

skyvern/forge/sdk/workflow/models/workflow.py

@@ -5,10 +5,11 @@ from typing import Any, List
 from pydantic import BaseModel, field_validator
 from typing_extensions import deprecated
 
+from skyvern.config import settings
 from skyvern.forge.sdk.schemas.files import FileInfo
 from skyvern.forge.sdk.schemas.task_v2 import TaskV2
 from skyvern.forge.sdk.workflow.exceptions import WorkflowDefinitionHasDuplicateBlockLabels
-from skyvern.forge.sdk.workflow.models.block import BlockTypeVar
+from skyvern.forge.sdk.workflow.models.block import Block, BlockTypeVar
 from skyvern.forge.sdk.workflow.models.parameter import PARAMETER_TYPE
 from skyvern.schemas.runs import ProxyLocation
 from skyvern.utils.url_validators import validate_url
@@ -81,6 +82,34 @@ class Workflow(BaseModel):
     modified_at: datetime
     deleted_at: datetime | None = None
 
+    def determine_llm_key(self, *, block: Block | None = None) -> str | None:
+        """
+        Determine the LLM key override to use for a block, if it has one.
+
+        It has one if:
+            - it defines one, or
+            - the workflow it is a part of (if applicable) defines one
+        """
+
+        mapping = settings.get_model_name_to_llm_key()
+
+        if block:
+            model_name = (block.model or {}).get("name")
+
+            if model_name:
+                llm_key = mapping.get(model_name)
+                if llm_key:
+                    return llm_key
+
+        workflow_model_name = (self.model or {}).get("name")
+
+        if workflow_model_name:
+            llm_key = mapping.get(workflow_model_name)
+            if llm_key:
+                return llm_key
+
+        return None
+
 
 class WorkflowRunStatus(StrEnum):
     created = "created"