feat: bump AI SDK to v6 + add Opus 4.6 adaptive thinking

package.json

@@ -40,7 +40,7 @@
       "@tailwindcss/vite": "4.1.11",
       "diff": "8.0.2",
       "dompurify": "3.3.1",
-      "ai": "5.0.124",
+      "ai": "6.0.81",
       "hono": "4.10.7",
       "hono-openapi": "1.1.2",
       "fuzzysort": "3.1.0",

packages/console/function/package.json

@@ -17,9 +17,9 @@
     "@typescript/native-preview": "catalog:"
   },
   "dependencies": {
-    "@ai-sdk/anthropic": "2.0.0",
-    "@ai-sdk/openai": "2.0.2",
-    "@ai-sdk/openai-compatible": "1.0.1",
+    "@ai-sdk/anthropic": "3.0.42",
+    "@ai-sdk/openai": "3.0.27",
+    "@ai-sdk/openai-compatible": "2.0.29",
     "@hono/zod-validator": "catalog:",
     "@opencode-ai/console-core": "workspace:*",
     "@opencode-ai/console-resource": "workspace:*",

packages/opencode/package.json

@@ -51,25 +51,25 @@
     "@actions/core": "1.11.1",
     "@actions/github": "6.0.1",
     "@agentclientprotocol/sdk": "0.14.1",
-    "@ai-sdk/amazon-bedrock": "3.0.74",
-    "@ai-sdk/anthropic": "2.0.58",
-    "@ai-sdk/azure": "2.0.91",
-    "@ai-sdk/cerebras": "1.0.36",
-    "@ai-sdk/cohere": "2.0.22",
-    "@ai-sdk/deepinfra": "1.0.33",
-    "@ai-sdk/gateway": "2.0.30",
-    "@ai-sdk/google": "2.0.52",
-    "@ai-sdk/google-vertex": "3.0.98",
-    "@ai-sdk/groq": "2.0.34",
-    "@ai-sdk/mistral": "2.0.27",
-    "@ai-sdk/openai": "2.0.89",
-    "@ai-sdk/openai-compatible": "1.0.32",
-    "@ai-sdk/perplexity": "2.0.23",
-    "@ai-sdk/provider": "2.0.1",
-    "@ai-sdk/provider-utils": "3.0.20",
-    "@ai-sdk/togetherai": "1.0.34",
-    "@ai-sdk/vercel": "1.0.33",
-    "@ai-sdk/xai": "2.0.51",
+    "@ai-sdk/amazon-bedrock": "4.0.56",
+    "@ai-sdk/anthropic": "3.0.42",
+    "@ai-sdk/azure": "3.0.28",
+    "@ai-sdk/cerebras": "2.0.32",
+    "@ai-sdk/cohere": "3.0.20",
+    "@ai-sdk/deepinfra": "2.0.33",
+    "@ai-sdk/gateway": "3.0.41",
+    "@ai-sdk/google": "3.0.26",
+    "@ai-sdk/google-vertex": "4.0.54",
+    "@ai-sdk/groq": "3.0.23",
+    "@ai-sdk/mistral": "3.0.19",
+    "@ai-sdk/openai": "3.0.27",
+    "@ai-sdk/openai-compatible": "2.0.29",
+    "@ai-sdk/perplexity": "3.0.18",
+    "@ai-sdk/provider": "3.0.8",
+    "@ai-sdk/provider-utils": "4.0.14",
+    "@ai-sdk/togetherai": "2.0.32",
+    "@ai-sdk/vercel": "2.0.31",
+    "@ai-sdk/xai": "3.0.54",
     "@clack/prompts": "1.0.0-alpha.1",
     "@gitlab/gitlab-ai-provider": "3.5.0",
     "@gitlab/opencode-gitlab-auth": "1.3.2",

packages/opencode/src/provider/provider.ts

@@ -24,7 +24,8 @@ import { createVertex } from "@ai-sdk/google-vertex"
 import { createVertexAnthropic } from "@ai-sdk/google-vertex/anthropic"
 import { createOpenAI } from "@ai-sdk/openai"
 import { createOpenAICompatible } from "@ai-sdk/openai-compatible"
-import { createOpenRouter, type LanguageModelV2 } from "@openrouter/ai-sdk-provider"
+import { createOpenRouter } from "@openrouter/ai-sdk-provider"
+import type { LanguageModel } from "ai"
 import { createOpenaiCompatible as createGitHubCopilotOpenAICompatible } from "./sdk/copilot"
 import { createXai } from "@ai-sdk/xai"
 import { createMistral } from "@ai-sdk/mistral"
@@ -55,7 +56,7 @@ export namespace Provider {
     return isGpt5OrLater(modelID) && !modelID.startsWith("gpt-5-mini")
   }
 
-  const BUNDLED_PROVIDERS: Record<string, (options: any) => SDK> = {
+  const BUNDLED_PROVIDERS: Record<string, (options: any) => any> = {
     "@ai-sdk/amazon-bedrock": createAmazonBedrock,
     "@ai-sdk/anthropic": createAnthropic,
     "@ai-sdk/azure": createAzure,
@@ -518,7 +519,7 @@ export namespace Provider {
         autoload: true,
         async getModel(_sdk: any, modelID: string, _options?: Record<string, any>) {
           // Model IDs use Unified API format: provider/model (e.g., "anthropic/claude-sonnet-4-5")
-          return aigateway(unified(modelID))
+          return aigateway(unified(modelID) as any)
         },
         options: {},
       }
@@ -715,7 +716,7 @@ export namespace Provider {
     }
 
     const providers: { [providerID: string]: Info } = {}
-    const languages = new Map<string, LanguageModelV2>()
+    const languages = new Map<string, LanguageModel>()
     const modelLoaders: {
       [providerID: string]: CustomModelLoader
     } = {}
@@ -1107,7 +1108,7 @@ export namespace Provider {
     return info
   }
 
-  export async function getLanguage(model: Model): Promise<LanguageModelV2> {
+  export async function getLanguage(model: Model): Promise<LanguageModel> {
     const s = await state()
     const key = `${model.providerID}/${model.id}`
     if (s.models.has(key)) return s.models.get(key)!

packages/opencode/src/provider/sdk/copilot/responses/tool/code-interpreter.ts

@@ -1,4 +1,4 @@
-import { createProviderDefinedToolFactoryWithOutputSchema } from "@ai-sdk/provider-utils"
+import { createProviderToolFactoryWithOutputSchema } from "@ai-sdk/provider-utils"
 import { z } from "zod/v4"
 
 export const codeInterpreterInputSchema = z.object({
@@ -37,7 +37,7 @@ type CodeInterpreterArgs = {
   container?: string | { fileIds?: string[] }
 }
 
-export const codeInterpreterToolFactory = createProviderDefinedToolFactoryWithOutputSchema<
+export const codeInterpreterToolFactory = createProviderToolFactoryWithOutputSchema<
   {
     /**
      * The code to run, or null if not available.
@@ -76,7 +76,6 @@ export const codeInterpreterToolFactory = createProviderDefinedToolFactoryWithOu
   CodeInterpreterArgs
 >({
   id: "openai.code_interpreter",
-  name: "code_interpreter",
   inputSchema: codeInterpreterInputSchema,
   outputSchema: codeInterpreterOutputSchema,
 })

packages/opencode/src/provider/sdk/copilot/responses/tool/file-search.ts

@@ -1,4 +1,4 @@
-import { createProviderDefinedToolFactoryWithOutputSchema } from "@ai-sdk/provider-utils"
+import { createProviderToolFactoryWithOutputSchema } from "@ai-sdk/provider-utils"
 import type {
   OpenAIResponsesFileSearchToolComparisonFilter,
   OpenAIResponsesFileSearchToolCompoundFilter,
@@ -43,7 +43,7 @@ export const fileSearchOutputSchema = z.object({
     .nullable(),
 })
 
-export const fileSearch = createProviderDefinedToolFactoryWithOutputSchema<
+export const fileSearch = createProviderToolFactoryWithOutputSchema<
   {},
   {
     /**
@@ -122,7 +122,6 @@ export const fileSearch = createProviderDefinedToolFactoryWithOutputSchema<
   }
 >({
   id: "openai.file_search",
-  name: "file_search",
   inputSchema: z.object({}),
   outputSchema: fileSearchOutputSchema,
 })

packages/opencode/src/provider/sdk/copilot/responses/tool/image-generation.ts

@@ -1,4 +1,4 @@
-import { createProviderDefinedToolFactoryWithOutputSchema } from "@ai-sdk/provider-utils"
+import { createProviderToolFactoryWithOutputSchema } from "@ai-sdk/provider-utils"
 import { z } from "zod/v4"
 
 export const imageGenerationArgsSchema = z
@@ -92,7 +92,7 @@ type ImageGenerationArgs = {
   size?: "auto" | "1024x1024" | "1024x1536" | "1536x1024"
 }
 
-const imageGenerationToolFactory = createProviderDefinedToolFactoryWithOutputSchema<
+const imageGenerationToolFactory = createProviderToolFactoryWithOutputSchema<
   {},
   {
     /**
@@ -103,7 +103,6 @@ const imageGenerationToolFactory = createProviderDefinedToolFactoryWithOutputSch
   ImageGenerationArgs
 >({
   id: "openai.image_generation",
-  name: "image_generation",
   inputSchema: z.object({}),
   outputSchema: imageGenerationOutputSchema,
 })

packages/opencode/src/provider/sdk/copilot/responses/tool/local-shell.ts

@@ -1,4 +1,4 @@
-import { createProviderDefinedToolFactoryWithOutputSchema } from "@ai-sdk/provider-utils"
+import { createProviderToolFactoryWithOutputSchema } from "@ai-sdk/provider-utils"
 import { z } from "zod/v4"
 
 export const localShellInputSchema = z.object({
@@ -16,7 +16,7 @@ export const localShellOutputSchema = z.object({
   output: z.string(),
 })
 
-export const localShell = createProviderDefinedToolFactoryWithOutputSchema<
+export const localShell = createProviderToolFactoryWithOutputSchema<
   {
     /**
      * Execute a shell command on the server.
@@ -59,7 +59,6 @@ export const localShell = createProviderDefinedToolFactoryWithOutputSchema<
   {}
 >({
   id: "openai.local_shell",
-  name: "local_shell",
   inputSchema: localShellInputSchema,
   outputSchema: localShellOutputSchema,
 })

packages/opencode/src/provider/sdk/copilot/responses/tool/web-search-preview.ts

@@ -1,4 +1,4 @@
-import { createProviderDefinedToolFactory } from "@ai-sdk/provider-utils"
+import { createProviderToolFactory } from "@ai-sdk/provider-utils"
 import { z } from "zod/v4"
 
 // Args validation schema
@@ -40,7 +40,7 @@ export const webSearchPreviewArgsSchema = z.object({
     .optional(),
 })
 
-export const webSearchPreview = createProviderDefinedToolFactory<
+export const webSearchPreview = createProviderToolFactory<
   {
     // Web search doesn't take input parameters - it's controlled by the prompt
   },
@@ -81,7 +81,6 @@ export const webSearchPreview = createProviderDefinedToolFactory<
   }
 >({
   id: "openai.web_search_preview",
-  name: "web_search_preview",
   inputSchema: z.object({
     action: z
       .discriminatedUnion("type", [

packages/opencode/src/provider/sdk/copilot/responses/tool/web-search.ts

@@ -1,4 +1,4 @@
-import { createProviderDefinedToolFactory } from "@ai-sdk/provider-utils"
+import { createProviderToolFactory } from "@ai-sdk/provider-utils"
 import { z } from "zod/v4"
 
 export const webSearchArgsSchema = z.object({
@@ -21,7 +21,7 @@ export const webSearchArgsSchema = z.object({
     .optional(),
 })
 
-export const webSearchToolFactory = createProviderDefinedToolFactory<
+export const webSearchToolFactory = createProviderToolFactory<
   {
     // Web search doesn't take input parameters - it's controlled by the prompt
   },
@@ -74,7 +74,6 @@ export const webSearchToolFactory = createProviderDefinedToolFactory<
   }
 >({
   id: "openai.web_search",
-  name: "web_search",
   inputSchema: z.object({
     action: z
       .discriminatedUnion("type", [

packages/opencode/src/provider/transform.ts

@@ -82,7 +82,7 @@ export namespace ProviderTransform {
               }
             }
             return part
-          })
+          }) as typeof msg.content
         }
         return msg
       })
@@ -112,7 +112,7 @@ export namespace ProviderTransform {
               }
             }
             return part
-          })
+          }) as typeof msg.content
         }
 
         result.push(msg)
@@ -199,8 +199,8 @@ export namespace ProviderTransform {
 
       if (shouldUseContentOptions) {
         const lastContent = msg.content[msg.content.length - 1]
-        if (lastContent && typeof lastContent === "object") {
-          lastContent.providerOptions = mergeDeep(lastContent.providerOptions ?? {}, providerOptions)
+        if (lastContent && typeof lastContent === "object" && "providerOptions" in lastContent) {
+          ;(lastContent as any).providerOptions = mergeDeep((lastContent as any).providerOptions ?? {}, providerOptions)
           continue
         }
       }
@@ -280,7 +280,7 @@ export namespace ProviderTransform {
         return {
           ...msg,
           providerOptions: remap(msg.providerOptions),
-          content: msg.content.map((part) => ({ ...part, providerOptions: remap(part.providerOptions) })),
+          content: msg.content.map((part) => ({ ...part, providerOptions: remap((part as any).providerOptions) })),
         } as typeof msg
       })
     }
@@ -456,6 +456,26 @@ export namespace ProviderTransform {
       // https://v5.ai-sdk.dev/providers/ai-sdk-providers/anthropic
       case "@ai-sdk/google-vertex/anthropic":
         // https://v5.ai-sdk.dev/providers/ai-sdk-providers/google-vertex#anthropic-provider
+
+        // Opus 4.6+ supports adaptive thinking, effort levels, and fast mode
+        if (id.includes("opus-4-6") || id.includes("opus-4.6")) {
+          return {
+            high: {
+              thinking: { type: "adaptive" },
+              effort: "high",
+            },
+            max: {
+              thinking: { type: "adaptive" },
+              effort: "max",
+            },
+            fast: {
+              thinking: { type: "adaptive" },
+              effort: "high",
+              speed: "fast",
+            },
+          }
+        }
+
         return {
           high: {
             thinking: {

packages/opencode/src/session/compaction.ts

@@ -185,7 +185,7 @@ When constructing the summary, try to stick to this template:
       tools: {},
       system: [],
       messages: [
-        ...MessageV2.toModelMessages(input.messages, model),
+        ...(await MessageV2.toModelMessages(input.messages, model)),
         {
           role: "user",
           content: [

packages/opencode/src/session/llm.ts

@@ -40,7 +40,7 @@ export namespace LLM {
     retries?: number
   }
 
-  export type StreamOutput = StreamTextResult<ToolSet, unknown>
+  export type StreamOutput = StreamTextResult<ToolSet, any>
 
   export async function stream(input: StreamInput) {
     const l = log
@@ -234,9 +234,10 @@ export namespace LLM {
         ...input.messages,
       ],
       model: wrapLanguageModel({
-        model: language,
+        model: language as any,
         middleware: [
           {
+            specificationVersion: "v3" as const,
             async transformParams(args) {
               if (args.type === "stream") {
                 // @ts-expect-error

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

@@ -442,7 +442,7 @@ export namespace MessageV2 {
   })
   export type WithParts = z.infer<typeof WithParts>
 
-  export function toModelMessages(input: WithParts[], model: Provider.Model): ModelMessage[] {
+  export async function toModelMessages(input: WithParts[], model: Provider.Model): Promise<ModelMessage[]> {
     const result: UIMessage[] = []
     const toolNames = new Set<string>()
     // Track media from tool results that need to be injected as user messages

packages/opencode/src/session/prompt.ts

@@ -626,7 +626,7 @@ export namespace SessionPrompt {
         sessionID,
         system: [...(await SystemPrompt.environment(model)), ...(await InstructionPrompt.system())],
         messages: [
-          ...MessageV2.toModelMessages(sessionMessages, model),
+          ...(await MessageV2.toModelMessages(sessionMessages, model)),
           ...(isLastStep
             ? [
                 {
@@ -757,7 +757,7 @@ export namespace SessionPrompt {
       const execute = item.execute
       if (!execute) continue
 
-      const transformed = ProviderTransform.schema(input.model, asSchema(item.inputSchema).jsonSchema)
+      const transformed = ProviderTransform.schema(input.model, await Promise.resolve(asSchema(item.inputSchema).jsonSchema))
       item.inputSchema = jsonSchema(transformed)
       // Wrap execute to add plugin hooks and format output
       item.execute = async (args, opts) => {
@@ -1849,19 +1849,19 @@ NOTE: At any point in time through this workflow you should feel free to ask the
         },
         ...(hasOnlySubtaskParts
           ? [{ role: "user" as const, content: subtaskParts.map((p) => p.prompt).join("\n") }]
-          : MessageV2.toModelMessages(contextMessages, model)),
+          : await MessageV2.toModelMessages(contextMessages, model)),
       ],
     })
-    const text = await result.text.catch((err) => log.error("failed to generate title", { error: err }))
+    const text = await Promise.resolve(result.text).catch((err: unknown) => log.error("failed to generate title", { error: err }))
     if (text)
       return Session.update(
         input.session.id,
         (draft) => {
           const cleaned = text
             .replace(/<think>[\s\S]*?<\/think>\s*/g, "")
             .split("\n")
-            .map((line) => line.trim())
-            .find((line) => line.length > 0)
+            .map((line: string) => line.trim())
+            .find((line: string) => line.length > 0)
           if (!cleaned) return
 
           const title = cleaned.length > 100 ? cleaned.substring(0, 97) + "..." : cleaned