feat: add variants toggle (#6325)

Co-authored-by: Github Action <action@github.com>

packages/opencode/src/provider/provider.ts

@@ -34,6 +34,7 @@ import { createCohere } from "@ai-sdk/cohere"
 import { createGateway } from "@ai-sdk/gateway"
 import { createTogetherAI } from "@ai-sdk/togetherai"
 import { createPerplexity } from "@ai-sdk/perplexity"
+import { ProviderTransform } from "./transform"
 
 export namespace Provider {
   const log = Log.create({ service: "provider" })
@@ -404,6 +405,16 @@ export namespace Provider {
     },
   }
 
+  export const Variant = z
+    .object({
+      disabled: z.boolean(),
+    })
+    .catchall(z.any())
+    .meta({
+      ref: "Variant",
+    })
+  export type Variant = z.infer<typeof Variant>
+
   export const Model = z
     .object({
       id: z.string(),
@@ -467,6 +478,7 @@ export namespace Provider {
       options: z.record(z.string(), z.any()),
       headers: z.record(z.string(), z.string()),
       release_date: z.string(),
+      variants: z.record(z.string(), Variant).optional(),
     })
     .meta({
       ref: "Model",
@@ -489,7 +501,7 @@ export namespace Provider {
   export type Info = z.infer<typeof Info>
 
   function fromModelsDevModel(provider: ModelsDev.Provider, model: ModelsDev.Model): Model {
-    return {
+    const m: Model = {
       id: model.id,
       providerID: provider.id,
       name: model.name,
@@ -546,7 +558,12 @@ export namespace Provider {
         interleaved: model.interleaved ?? false,
       },
       release_date: model.release_date,
+      variants: {},
     }
+
+    m.variants = mapValues(ProviderTransform.variants(m), (v) => ({ disabled: false, ...v }))
+
+    return m
   }
 
   export function fromModelsDevProvider(provider: ModelsDev.Provider): Info {