fix(llm): expand compatible provider bridge

packages/llm/src/provider/openai-compatible-family.ts

@@ -11,7 +11,12 @@ export const families = {
   deepinfra: { provider: "deepinfra", baseURL: "https://api.deepinfra.com/v1/openai" },
   deepseek: { provider: "deepseek", baseURL: "https://api.deepseek.com/v1" },
   fireworks: { provider: "fireworks", baseURL: "https://api.fireworks.ai/inference/v1" },
+  groq: { provider: "groq", baseURL: "https://api.groq.com/openai/v1" },
+  mistral: { provider: "mistral", baseURL: "https://api.mistral.ai/v1" },
+  openrouter: { provider: "openrouter", baseURL: "https://openrouter.ai/api/v1" },
+  perplexity: { provider: "perplexity", baseURL: "https://api.perplexity.ai" },
   togetherai: { provider: "togetherai", baseURL: "https://api.together.xyz/v1" },
+  venice: { provider: "venice", baseURL: "https://api.venice.ai/api/v1" },
 } as const satisfies Record<string, ProviderFamily>
 
 export const byProvider: Record<string, ProviderFamily> = Object.fromEntries(

packages/llm/src/provider/xai.ts

@@ -1,5 +1,7 @@
 import { ProviderResolver } from "../provider-resolver"
 
-export const resolver = ProviderResolver.fixed("xai", "openai-responses")
+export const resolver = ProviderResolver.fixed("xai", "openai-compatible-chat", {
+  baseURL: "https://api.x.ai/v1",
+})
 
 export * as XAI from "./xai"

packages/llm/test/provider-resolver.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, test } from "bun:test"
-import { Azure, GitHubCopilot, OpenAI, OpenAICompatibleFamily, ProviderResolver } from "../src"
+import { Azure, GitHubCopilot, OpenAI, OpenAICompatibleFamily, ProviderResolver, XAI } from "../src"
 
 describe("provider resolver", () => {
   test("fixed providers resolve protocol and auth defaults", () => {
@@ -30,6 +30,29 @@ describe("provider resolver", () => {
       baseURL: "https://api.together.xyz/v1",
       auth: "key",
     })
+    expect(OpenAICompatibleFamily.resolver.resolve(ProviderResolver.input("llama", "groq", {}))).toMatchObject({
+      provider: "groq",
+      protocol: "openai-compatible-chat",
+      baseURL: "https://api.groq.com/openai/v1",
+    })
+    expect(OpenAICompatibleFamily.resolver.resolve(ProviderResolver.input("sonar", "perplexity", {}))).toMatchObject({
+      provider: "perplexity",
+      protocol: "openai-compatible-chat",
+      baseURL: "https://api.perplexity.ai",
+    })
+    expect(OpenAICompatibleFamily.resolver.resolve(ProviderResolver.input("gpt-5", "openrouter", {}))).toMatchObject({
+      provider: "openrouter",
+      protocol: "openai-compatible-chat",
+      baseURL: "https://openrouter.ai/api/v1",
+    })
+  })
+
+  test("xAI resolves to its OpenAI-compatible chat endpoint", () => {
+    expect(XAI.resolver.resolve(ProviderResolver.input("grok-4", "xai", {}))).toMatchObject({
+      provider: "xai",
+      protocol: "openai-compatible-chat",
+      baseURL: "https://api.x.ai/v1",
+    })
   })
 
   test("Azure resolves resource URLs and API-version query params", () => {

packages/opencode/src/provider/llm-bridge.ts

@@ -31,14 +31,20 @@ const PROVIDERS: Record<string, ProviderResolverShape> = {
   "@ai-sdk/azure": Azure.resolver,
   "@ai-sdk/baseten": OpenAICompatibleFamily.resolver,
   "@ai-sdk/cerebras": OpenAICompatibleFamily.resolver,
+  "@ai-sdk/deepseek": OpenAICompatibleFamily.resolver,
   "@ai-sdk/deepinfra": OpenAICompatibleFamily.resolver,
   "@ai-sdk/fireworks": OpenAICompatibleFamily.resolver,
+  "@ai-sdk/groq": OpenAICompatibleFamily.resolver,
   "@ai-sdk/github-copilot": GitHubCopilot.resolver,
   "@ai-sdk/google": Google.resolver,
+  "@ai-sdk/mistral": OpenAICompatibleFamily.resolver,
   "@ai-sdk/openai": OpenAI.resolver,
   "@ai-sdk/openai-compatible": OpenAICompatibleFamily.resolver,
+  "@ai-sdk/perplexity": OpenAICompatibleFamily.resolver,
   "@ai-sdk/togetherai": OpenAICompatibleFamily.resolver,
   "@ai-sdk/xai": XAI.resolver,
+  "@openrouter/ai-sdk-provider": OpenAICompatibleFamily.resolver,
+  "venice-ai-sdk-provider": OpenAICompatibleFamily.resolver,
 }
 
 const REASONING_EFFORTS = new Set<ReasoningEffort>(ReasoningEfforts)

packages/opencode/test/provider/llm-bridge.test.ts

@@ -87,22 +87,46 @@ describe("ProviderLLMBridge", () => {
   })
 
   test("maps known OpenAI-compatible provider families", () => {
+    const cases = [
+      ["togetherai", "@ai-sdk/togetherai", "https://api.together.xyz/v1"],
+      ["openrouter", "@openrouter/ai-sdk-provider", "https://openrouter.ai/api/v1"],
+      ["groq", "@ai-sdk/groq", "https://api.groq.com/openai/v1"],
+      ["mistral", "@ai-sdk/mistral", "https://api.mistral.ai/v1"],
+      ["perplexity", "@ai-sdk/perplexity", "https://api.perplexity.ai"],
+      ["venice", "venice-ai-sdk-provider", "https://api.venice.ai/api/v1"],
+    ] as const
+
+    for (const [providerID, npm, baseURL] of cases) {
+      const ref = ProviderLLMBridge.toModelRef({
+        provider: provider({ id: ProviderID.make(providerID), options: { apiKey: `${providerID}-key` } }),
+        model: model({
+          id: "llama",
+          apiID: providerID === "togetherai" ? "meta-llama/Llama-3.3-70B-Instruct-Turbo" : "model-1",
+          providerID,
+          npm,
+        }),
+      })
+
+      expect(ref).toMatchObject({
+        provider: providerID,
+        protocol: "openai-compatible-chat",
+        baseURL,
+        apiKey: `${providerID}-key`,
+      })
+    }
+  })
+
+  test("maps xAI to OpenAI-compatible Chat", () => {
     const ref = ProviderLLMBridge.toModelRef({
-      provider: provider({ id: ProviderID.make("togetherai"), options: { apiKey: "together-key" } }),
-      model: model({
-        id: "llama",
-        apiID: "meta-llama/Llama-3.3-70B-Instruct-Turbo",
-        providerID: "togetherai",
-        npm: "@ai-sdk/togetherai",
-      }),
+      provider: provider({ id: ProviderID.make("xai"), key: "xai-key" }),
+      model: model({ id: "grok-4", providerID: "xai", npm: "@ai-sdk/xai" }),
     })
 
     expect(ref).toMatchObject({
-      id: "meta-llama/Llama-3.3-70B-Instruct-Turbo",
-      provider: "togetherai",
+      provider: "xai",
       protocol: "openai-compatible-chat",
-      baseURL: "https://api.together.xyz/v1",
-      apiKey: "together-key",
+      baseURL: "https://api.x.ai/v1",
+      apiKey: "xai-key",
     })
   })
 
@@ -202,7 +226,9 @@ describe("ProviderLLMBridge", () => {
 
   test("leaves undecided provider packages unmapped", () => {
     const unsupported = [
-      ["mistral", "mistral-large", "@ai-sdk/mistral"],
+      ["cohere", "command-a", "@ai-sdk/cohere"],
+      ["google-vertex", "gemini-2.5-flash", "@ai-sdk/google-vertex"],
+      ["gateway", "openai/gpt-5", "@ai-sdk/gateway"],
     ] as const
 
     expect(
@@ -212,6 +238,6 @@ describe("ProviderLLMBridge", () => {
           model: model({ id: modelID, providerID, npm }),
         }),
       ),
-    ).toEqual([undefined, undefined])
+    ).toEqual([undefined, undefined, undefined])
   })
 })