FEATURE: Add spending metrics to AI usage

admin/assets/javascripts/discourse/routes/admin-plugins-show-discourse-ai-llms-edit.js

@@ -2,8 +2,17 @@ import DiscourseRoute from "discourse/routes/discourse";
 
 export default class AdminPluginsShowDiscourseAiLlmsEdit extends DiscourseRoute {
   async model(params) {
-    const allLlms = this.modelFor("adminPlugins.show.discourse-ai-llms");
     const id = parseInt(params.id, 10);
+
+    if (id < 0) {
+      // You shouldn't be able to access the edit page
+      // if the model is seeded
+      return this.router.transitionTo(
+        "adminPlugins.show.discourse-ai-llms.index"
+      );
+    }
+
+    const allLlms = this.modelFor("adminPlugins.show.discourse-ai-llms");
     const record = allLlms.findBy("id", id);
     record.provider_params = record.provider_params || {};
     return record;

app/controllers/discourse_ai/admin/ai_llms_controller.rb

@@ -160,6 +160,9 @@ def ai_llm_params(updating: nil)
             :api_key,
             :enabled_chat_bot,
             :vision_enabled,
+            :input_cost,
+            :cached_input_cost,
+            :output_cost,
           )
 
         provider = updating ? updating.provider : permitted[:provider]

app/models/llm_model.rb

@@ -13,6 +13,13 @@ class LlmModel < ActiveRecord::Base
   validates :url, presence: true, unless: -> { provider == BEDROCK_PROVIDER_NAME }
   validates_presence_of :name, :api_key
   validates :max_prompt_tokens, numericality: { greater_than: 0 }
+  validates :input_cost,
+            :cached_input_cost,
+            :output_cost,
+            numericality: {
+              greater_than_or_equal_to: 0,
+            },
+            allow_nil: true
   validate :required_provider_params
   scope :in_use,
         -> do
@@ -183,4 +190,7 @@ def required_provider_params
 #  enabled_chat_bot  :boolean          default(FALSE), not null
 #  provider_params   :jsonb
 #  vision_enabled    :boolean          default(FALSE), not null
+#  input_cost        :float
+#  cached_input_cost :float
+#  output_cost       :float
 #

app/serializers/ai_usage_serializer.rb

@@ -22,6 +22,9 @@ def features
         total_cached_tokens
         total_request_tokens
         total_response_tokens
+        input_spending
+        output_spending
+        cached_input_spending
       ],
     )
   end
@@ -35,6 +38,9 @@ def models
         total_cached_tokens
         total_request_tokens
         total_response_tokens
+        input_spending
+        output_spending
+        cached_input_spending
       ],
     )
   end
@@ -49,6 +55,9 @@ def users
         total_cached_tokens: user.total_cached_tokens,
         total_request_tokens: user.total_request_tokens,
         total_response_tokens: user.total_response_tokens,
+        input_spending: user.input_spending,
+        output_spending: user.output_spending,
+        cached_input_spending: user.cached_input_spending,
       }
     end
   end
@@ -60,6 +69,7 @@ def summary
       total_request_tokens: object.total_request_tokens,
       total_response_tokens: object.total_response_tokens,
       total_requests: object.total_requests,
+      total_spending: object.total_spending,
       date_range: {
         start: object.start_date,
         end: object.end_date,

app/serializers/llm_model_serializer.rb

@@ -17,6 +17,9 @@ class LlmModelSerializer < ApplicationSerializer
              :enabled_chat_bot,
              :provider_params,
              :vision_enabled,
+             :input_cost,
+             :output_cost,
+             :cached_input_cost,
              :used_by
 
   has_one :user, serializer: BasicUserSerializer, embed: :object

assets/javascripts/discourse/admin/models/ai-llm.js

@@ -14,7 +14,10 @@ export default class AiLlm extends RestModel {
       "api_key",
       "enabled_chat_bot",
       "provider_params",
-      "vision_enabled"
+      "vision_enabled",
+      "input_cost",
+      "cached_input_cost",
+      "output_cost"
     );
   }