use provider/model to identify models

arch/arch_config_schema.yaml

@@ -103,7 +103,8 @@ properties:
           type: string
       additionalProperties: false
       required:
-        - name
+        - model
+        - provider_interface
   overrides:
     type: object
     properties:

arch/tools/cli/config_generator.py

@@ -9,6 +9,9 @@ ENVOY_CONFIG_TEMPLATE_FILE = os.getenv(
     "ENVOY_CONFIG_TEMPLATE_FILE", "envoy.template.yaml"
 )
 ARCH_CONFIG_FILE = os.getenv("ARCH_CONFIG_FILE", "/app/arch_config.yaml")
+ARCH_CONFIG_FILE_RENDERED = os.getenv(
+    "ARCH_CONFIG_FILE_RENDERED", "/app/arch_config_rendered.yaml"
+)
 ENVOY_CONFIG_FILE_RENDERED = os.getenv(
     "ENVOY_CONFIG_FILE_RENDERED", "/etc/envoy/envoy.yaml"
 )
@@ -90,9 +93,9 @@ def validate_and_render_schema():
                 f"Duplicate llm_provider name {llm_provider.get('name')}, please provide unique name for each llm_provider"
             )
         if llm_provider.get("name") is None:
-            raise Exception(
-                f"llm_provider name is required, please provide name for llm_provider"
-            )
+            provider_interface = llm_provider.get("provider_interface", "unknown")
+            model_name = llm_provider.get("model", "unknown")
+            llm_provider["name"] = f"{provider_interface}/{model_name}"
         llm_provider_name_set.add(llm_provider.get("name"))
         provider = None
         if llm_provider.get("provider") and llm_provider.get("provider_interface"):
@@ -216,6 +219,9 @@ def validate_and_render_schema():
     with open(ENVOY_CONFIG_FILE_RENDERED, "w") as file:
         file.write(rendered)
 
+    with open(ARCH_CONFIG_FILE_RENDERED, "w") as file:
+        file.write(arch_config_string)
+
 
 def validate_prompt_config(arch_config_file, arch_config_schema_file):
     with open(arch_config_file, "r") as file:

crates/brightstaff/src/handlers/chat_completions.rs

@@ -104,7 +104,7 @@ pub async fn chat_completions(
 
     debug!("usage preferences: {:?}", usage_preferences);
 
-    let mut selected_llm = match router_service
+    let mut determined_route = match router_service
         .determine_route(
             &chat_completion_request.messages,
             trace_parent.clone(),
@@ -121,14 +121,14 @@ pub async fn chat_completions(
         }
     };
 
-    if selected_llm.is_none() {
+    if determined_route.is_none() {
         debug!("No LLM model selected, using default from request");
-        selected_llm = Some(chat_completion_request.model.clone());
+        determined_route = Some(chat_completion_request.model.clone());
     }
 
     info!(
         "sending request to llm provider: {} with llm model: {:?}",
-        llm_provider_endpoint, selected_llm
+        llm_provider_endpoint, determined_route
     );
 
     if let Some(trace_parent) = trace_parent {
@@ -138,10 +138,10 @@ pub async fn chat_completions(
         );
     }
 
-    if let Some(selected_llm) = selected_llm {
+    if let Some(selected_route) = determined_route {
         request_headers.insert(
             ARCH_PROVIDER_HINT_HEADER,
-            header::HeaderValue::from_str(&selected_llm).unwrap(),
+            header::HeaderValue::from_str(&selected_route).unwrap(),
         );
     }
 

crates/brightstaff/src/main.rs

@@ -45,8 +45,8 @@ async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
     let bind_address = env::var("BIND_ADDRESS").unwrap_or_else(|_| BIND_ADDRESS.to_string());
 
     // loading arch_config.yaml file
-    let arch_config_path =
-        env::var("ARCH_CONFIG_PATH").unwrap_or_else(|_| "./arch_config.yaml".to_string());
+    let arch_config_path = env::var("ARCH_CONFIG_PATH_RENDERED")
+        .unwrap_or_else(|_| "./arch_config_rendered.yaml".to_string());
     info!("Loading arch_config.yaml from {}", arch_config_path);
 
     let config_contents =

crates/brightstaff/src/router/llm_router.rs

@@ -1,4 +1,4 @@
-use std::{collections::HashMap, sync::Arc};
+use std::sync::Arc;
 
 use common::{
     configuration::{LlmProvider, LlmRoute, ModelUsagePreference},
@@ -19,7 +19,6 @@ pub struct RouterService {
     router_model: Arc<dyn RouterModel>,
     routing_provider_name: String,
     llm_usage_defined: bool,
-    llm_provider_map: HashMap<String, LlmProvider>,
 }
 
 #[derive(Debug, Error)]
@@ -57,18 +56,12 @@ impl RouterService {
             router_model_v1::MAX_TOKEN_LEN,
         ));
 
-        let llm_provider_map: HashMap<String, LlmProvider> = providers
-            .into_iter()
-            .map(|provider| (provider.name.clone(), provider))
-            .collect();
-
         RouterService {
             router_url,
             client: reqwest::Client::new(),
             router_model,
             routing_provider_name,
             llm_usage_defined: !providers_with_usage.is_empty(),
-            llm_provider_map,
         }
     }
 
@@ -155,40 +148,15 @@ impl RouterService {
         if let Some(ContentType::Text(content)) =
             &chat_completion_response.choices[0].message.content
         {
-            let mut selected_model: Option<String> = None;
-            if let Some(selected_llm_name) = self.router_model.parse_response(content)? {
-                if selected_llm_name != "other" {
-                    if let Some(usage_preferences) = usage_preferences {
-                        for usage in usage_preferences {
-                            if usage.name == selected_llm_name {
-                                selected_model = Some(usage.model);
-                                break;
-                            }
-                        }
-                        if selected_model.is_none() {
-                            warn!(
-                                "Selected LLM model not found in usage preferences: {}",
-                                selected_llm_name
-                            );
-                        }
-                    } else if let Some(provider) = self.llm_provider_map.get(&selected_llm_name) {
-                        selected_model = provider.model.clone();
-                    } else {
-                        warn!(
-                            "Selected LLM model not found in provider map: {}",
-                            selected_llm_name
-                        );
-                    }
-                }
-            }
+            let route_name = self.router_model.parse_response(content)?;
             info!(
                 "router response: {}, selected_model: {:?}, response time: {}ms",
                 content.replace("\n", "\\n"),
-                selected_model,
+                route_name,
                 router_response_time.as_millis()
             );
 
-            Ok(selected_model)
+            Ok(route_name)
         } else {
             Ok(None)
         }

demos/use_cases/llm_routing/arch_config.yaml

@@ -9,44 +9,36 @@ listeners:
 
 llm_providers:
 
-  - name: openai/gpt-4o-mini
-    access_key: $OPENAI_API_KEY
+  - access_key: $OPENAI_API_KEY
     provider_interface: openai
     model: gpt-4o-mini
 
-  - name: openai/gpt-4o
-    access_key: $OPENAI_API_KEY
+  - access_key: $OPENAI_API_KEY
     provider_interface: openai
     model: gpt-4o
     default: true
 
-  - name: mistral/ministral-3b
-    access_key: $MISTRAL_API_KEY
+  - access_key: $MISTRAL_API_KEY
     provider_interface: mistral
     model: ministral-3b-latest
 
-  - name: claude/claude-sonnet
-    access_key: $ANTHROPIC_API_KEY
+  - access_key: $ANTHROPIC_API_KEY
     provider_interface: claude
     model: claude-3-7-sonnet-latest
 
-  - name: claude/claude-sonnet-4
-    access_key: $ANTHROPIC_API_KEY
+  - access_key: $ANTHROPIC_API_KEY
     provider_interface: claude
     model: claude-sonnet-4-0
 
-  - name: deepseek/deepseek-reasoner
-    access_key: $DEEPSEEK_API_KEY
+  - access_key: $DEEPSEEK_API_KEY
     provider_interface: deepseek
     model: deepseek-reasoner
 
-  - name: groq/llama-3.1-8b-instant
-    access_key: $GROQ_API_KEY
+  - access_key: $GROQ_API_KEY
     provider_interface: groq
     model: llama-3.1-8b-instant
 
-  - name: gemini/gemini-1.5-pro-latest
-    access_key: $GEMINI_API_KEY
+  - access_key: $GEMINI_API_KEY
     provider_interface: gemini
     model: gemini-1.5-pro-latest
 

demos/use_cases/preference_based_routing/arch_config.yaml

@@ -9,13 +9,11 @@ listeners:
 
 llm_providers:
 
-  - name: openai/gpt-4o-mini
-    provider_interface: openai
+  - provider_interface: openai
     access_key: $OPENAI_API_KEY
     model: gpt-4o-mini
 
-  - name: openai/gpt-4.1
-    provider_interface: openai
+  - provider_interface: openai
     access_key: $OPENAI_API_KEY
     model: gpt-4.1
     default: true