feat: bump bedrock and add proper mantle support for openai models through aws bedrock (#30464)

packages/opencode/src/provider/provider.ts

@@ -100,10 +100,13 @@ function googleVertexAnthropicBaseURL(project: string | undefined, location: str
 
 type BundledSDK = {
   languageModel(modelId: string): LanguageModelV3
+  chat?: (modelId: string) => LanguageModelV3
+  responses?: (modelId: string) => LanguageModelV3
 }
 
 const BUNDLED_PROVIDERS: Record<string, () => Promise<(opts: any) => BundledSDK>> = {
   "@ai-sdk/amazon-bedrock": () => import("@ai-sdk/amazon-bedrock").then((m) => m.createAmazonBedrock),
+  "@ai-sdk/amazon-bedrock/mantle": () => import("@ai-sdk/amazon-bedrock/mantle").then((m) => m.createBedrockMantle),
   "@ai-sdk/anthropic": () => import("@ai-sdk/anthropic").then((m) => m.createAnthropic),
   "@ai-sdk/azure": () => import("@ai-sdk/azure").then((m) => m.createAzure),
   "@ai-sdk/google": () => import("@ai-sdk/google").then((m) => m.createGoogleGenerativeAI),
@@ -130,7 +133,7 @@ const BUNDLED_PROVIDERS: Record<string, () => Promise<(opts: any) => BundledSDK>
   "venice-ai-sdk-provider": () => import("venice-ai-sdk-provider").then((m) => m.createVenice),
 }
 
-type CustomModelLoader = (sdk: any, modelID: string, options?: Record<string, any>) => Promise<any>
+type CustomModelLoader = (sdk: any, modelID: string, options?: Record<string, any>, model?: Model) => Promise<any>
 type CustomVarsLoader = (options: Record<string, any>) => Record<string, string>
 type CustomDiscoverModels = () => Promise<Record<string, Model>>
 type CustomLoader = (provider: Info) => Effect.Effect<{
@@ -156,6 +159,12 @@ function selectAzureLanguageModel(sdk: any, modelID: string, useChat: boolean) {
   return sdk.languageModel(modelID)
 }
 
+function selectBedrockMantleLanguageModel(sdk: BundledSDK, modelID: string) {
+  if (modelID === "openai.gpt-oss-safeguard-20b" || modelID === "openai.gpt-oss-safeguard-120b")
+    return sdk.chat?.(modelID) ?? sdk.languageModel(modelID)
+  return sdk.responses?.(modelID) ?? sdk.languageModel(modelID)
+}
+
 function custom(dep: CustomDep): Record<string, CustomLoader> {
   return {
     anthropic: () =>
@@ -331,7 +340,9 @@ function custom(dep: CustomDep): Record<string, CustomLoader> {
       return {
         autoload: true,
         options: providerOptions,
-        async getModel(sdk: any, modelID: string, options?: Record<string, any>) {
+        async getModel(sdk: any, modelID: string, options?: Record<string, any>, model?: Model) {
+          if (model?.api.npm === "@ai-sdk/amazon-bedrock/mantle") return selectBedrockMantleLanguageModel(sdk, modelID)
+
           // Skip region prefixing if model already has a cross-region inference profile prefix
           // Models from models.dev may already include prefixes like us., eu., global., etc.
           const crossRegionPrefixes = ["global.", "us.", "eu.", "jp.", "apac.", "au."]
@@ -1618,7 +1629,9 @@ export const layer = Layer.effect(
 
           // Strip openai itemId metadata following what codex does
           if (
-            (model.api.npm === "@ai-sdk/openai" || model.api.npm === "@ai-sdk/azure") &&
+            (model.api.npm === "@ai-sdk/openai" ||
+              model.api.npm === "@ai-sdk/azure" ||
+              model.api.npm === "@ai-sdk/amazon-bedrock/mantle") &&
             opts.body &&
             opts.method === "POST"
           ) {
@@ -1725,10 +1738,15 @@ export const layer = Layer.effect(
         async () => {
           const sdk = await resolveSDK(model, s, envs)
           const language = s.modelLoaders[model.providerID]
-            ? await s.modelLoaders[model.providerID](sdk, model.api.id, {
-                ...provider.options,
-                ...model.options,
-              })
+            ? await s.modelLoaders[model.providerID](
+                sdk,
+                model.api.id,
+                {
+                  ...provider.options,
+                  ...model.options,
+                },
+                model,
+              )
             : sdk.languageModel(model.api.id)
           s.models.set(key, language)
           return language

packages/opencode/src/provider/transform.ts

@@ -35,6 +35,8 @@ function sdkKey(npm: string): string | undefined {
       return "azure"
     case "@ai-sdk/openai":
       return "openai"
+    case "@ai-sdk/amazon-bedrock/mantle":
+      return "openai"
     case "@ai-sdk/amazon-bedrock":
       return "bedrock"
     case "@ai-sdk/anthropic":
@@ -815,6 +817,7 @@ export function variants(model: Provider.Model): Record<string, Record<string, a
           },
         ]),
       )
+    case "@ai-sdk/amazon-bedrock/mantle":
     case "@ai-sdk/openai": {
       // https://v5.ai-sdk.dev/providers/ai-sdk-providers/openai
       const efforts = openaiReasoningEfforts(model.api.id, model.release_date)
@@ -1021,7 +1024,8 @@ export function options(input: {
   if (
     input.model.providerID === "openai" ||
     input.model.api.npm === "@ai-sdk/openai" ||
-    input.model.api.npm === "@ai-sdk/github-copilot"
+    input.model.api.npm === "@ai-sdk/github-copilot" ||
+    input.model.api.npm === "@ai-sdk/amazon-bedrock/mantle"
   ) {
     result["store"] = false
   }
@@ -1107,7 +1111,7 @@ export function options(input: {
     if (!input.model.api.id.includes("gpt-5-pro")) {
       result["reasoningEffort"] = "medium"
       result["reasoningSummary"] = "auto"
-      if (input.model.api.npm === "@ai-sdk/openai") {
+      if (input.model.api.npm === "@ai-sdk/openai" || input.model.api.npm === "@ai-sdk/amazon-bedrock/mantle") {
         result["include"] = INCLUDE_ENCRYPTED_REASONING
       }
     }

packages/opencode/src/session/message-v2.ts

@@ -159,6 +159,7 @@ export const toModelMessagesEffect = Effect.fnUntraced(function* (
   const supportsMediaInToolResult = (attachment: { mime: string }) => {
     if (model.api.npm === "@ai-sdk/anthropic") return true
     if (model.api.npm === "@ai-sdk/openai") return true
+    if (model.api.npm === "@ai-sdk/amazon-bedrock/mantle") return true
     if (model.api.npm === "@ai-sdk/amazon-bedrock") return attachment.mime.startsWith("image/")
     if (model.api.npm === "@ai-sdk/xai") return attachment.mime.startsWith("image/")
     if (model.api.npm === "@ai-sdk/google-vertex/anthropic") return true