zen: return cost

packages/console/app/src/routes/zen/util/provider/anthropic.ts

@@ -167,6 +167,7 @@ export const anthropicHelper: ProviderHelper = ({ reqModel, providerModel }) =>
           }
         },
         retrieve: () => usage,
+        buidlCostChunk: (cost: string) => `event: ping\ndata: ${JSON.stringify({ type: "ping", cost })}\n\n`,
       }
     },
     normalizeUsage: (usage: Usage) => ({

packages/console/app/src/routes/zen/util/provider/google.ts

@@ -56,6 +56,7 @@ export const googleHelper: ProviderHelper = ({ providerModel }) => ({
         usage = json.usageMetadata
       },
       retrieve: () => usage,
+      buidlCostChunk: (cost: string) => `data: ${JSON.stringify({ type: "ping", cost })}\n\n`,
     }
   },
   normalizeUsage: (usage: Usage) => {

packages/console/app/src/routes/zen/util/provider/openai-compatible.ts

@@ -54,6 +54,7 @@ export const oaCompatHelper: ProviderHelper = () => ({
         usage = json.usage
       },
       retrieve: () => usage,
+      buidlCostChunk: (cost: string) => `data: ${JSON.stringify({ choices: [], cost })}\n\n`,
     }
   },
   normalizeUsage: (usage: Usage) => {

packages/console/app/src/routes/zen/util/provider/openai.ts

@@ -43,6 +43,7 @@ export const openaiHelper: ProviderHelper = () => ({
         usage = json.response.usage
       },
       retrieve: () => usage,
+      buidlCostChunk: (cost: string) => `event: ping\ndata: ${JSON.stringify({ type: "ping", cost })}\n\n`,
     }
   },
   normalizeUsage: (usage: Usage) => {

packages/console/app/src/routes/zen/util/provider/provider.ts

@@ -43,6 +43,7 @@ export type ProviderHelper = (input: { reqModel: string; providerModel: string }
   createUsageParser: () => {
     parse: (chunk: string) => void
     retrieve: () => any
+    buidlCostChunk: (cost: string) => string
   }
   normalizeUsage: (usage: any) => UsageInfo
 }