diff --git a/packages/opencode/src/provider/provider.ts b/packages/opencode/src/provider/provider.ts
index a0ab5eb3474d..34294c7bc343 100644
--- a/packages/opencode/src/provider/provider.ts
+++ b/packages/opencode/src/provider/provider.ts
@@ -1523,7 +1523,7 @@ const layer = Layer.effect(
           if (!apiKey) continue
           mergeProvider(providerID, {
             source: "env",
-            key: provider.env.length === 1 ? apiKey : undefined,
+            key: apiKey,
           })
         }
 
diff --git a/packages/opencode/src/session/llm/native-request.ts b/packages/opencode/src/session/llm/native-request.ts
index b7f30e24c362..2dd383454d0d 100644
--- a/packages/opencode/src/session/llm/native-request.ts
+++ b/packages/opencode/src/session/llm/native-request.ts
@@ -13,6 +13,16 @@ import type { ModelMessage } from "ai"
 import type { Provider } from "@/provider/provider"
 import { isRecord } from "@/util/record"
 
+export const SUPPORTED_NPM_PACKAGES = new Set([
+  "@ai-sdk/openai",
+  "@ai-sdk/azure",
+  "@ai-sdk/anthropic",
+  "@ai-sdk/google",
+  "@ai-sdk/amazon-bedrock",
+  "@ai-sdk/openai-compatible",
+  "@openrouter/ai-sdk-provider",
+])
+
 type ToolInput = {
   readonly description?: string
   readonly inputSchema?: unknown
diff --git a/packages/opencode/src/session/llm/native-runtime.ts b/packages/opencode/src/session/llm/native-runtime.ts
index bac385c59137..81d61906a6f8 100644
--- a/packages/opencode/src/session/llm/native-runtime.ts
+++ b/packages/opencode/src/session/llm/native-runtime.ts
@@ -51,12 +51,9 @@ function statusWithFetch(
   input: Pick<StreamInput, "model" | "provider" | "auth">,
   fetch: typeof globalThis.fetch | undefined,
 ): RuntimeStatus {
-  const providerID = input.model.providerID
-  if (providerID !== "openai" && providerID !== "anthropic" && !providerID.startsWith("opencode"))
-    return { type: "unsupported", reason: "provider is not openai, opencode, or anthropic" }
   const npm = input.model.api.npm
-  if (npm !== "@ai-sdk/openai" && npm !== "@ai-sdk/openai-compatible" && npm !== "@ai-sdk/anthropic")
-    return { type: "unsupported", reason: "provider package is not OpenAI, OpenAI-compatible, or Anthropic" }
+  if (!LLMNative.SUPPORTED_NPM_PACKAGES.has(npm))
+    return { type: "unsupported", reason: `provider package ${npm} is not supported by native runtime` }
   if (input.auth?.type === "oauth" && !(input.provider.id === "openai" && fetch)) {
     return { type: "unsupported", reason: "OAuth auth requires a provider fetch override" }
   }