diff --git a/packages/opencode/src/provider/transform.ts b/packages/opencode/src/provider/transform.ts
index 411afc81b7dd..f787729235c0 100644
--- a/packages/opencode/src/provider/transform.ts
+++ b/packages/opencode/src/provider/transform.ts
@@ -478,6 +478,7 @@ export function message(msgs: ModelMessage[], model: Provider.Model, options: Re
 
 export function temperature(model: Provider.Model) {
   const id = model.id.toLowerCase()
+  if (id.includes("north-mini-code")) return 1.0
   if (id.includes("qwen")) return 0.55
   if (id.includes("claude")) return undefined
   if (id.includes("gemini")) return 1.0
@@ -826,6 +827,9 @@ export function variants(model: Provider.Model): Record<string, Record<string, a
     case "venice-ai-sdk-provider":
     // https://docs.venice.ai/overview/guides/reasoning-models#reasoning-effort
     case "@ai-sdk/openai-compatible":
+      if (model.api.id.toLowerCase().includes("north-mini-code")) {
+        return Object.fromEntries(["none", "high"].map((effort) => [effort, { reasoningEffort: effort }]))
+      }
       const efforts = [...WIDELY_SUPPORTED_EFFORTS]
       if (model.api.id.toLowerCase().includes("deepseek-v4")) {
         efforts.push("max")
@@ -1105,6 +1109,10 @@ export function options(input: {
   }
 
   const modelId = input.model.api.id.toLowerCase()
+  if (modelId.includes("north-mini-code") && input.model.api.npm === "@ai-sdk/openai-compatible") {
+    result["options"] = { citation_options: { mode: "disabled" } }
+  }
+
   // MiniMax's Anthropic interface defaults thinking off, unlike Chat Completions.
   if (modelId.includes("minimax-m3") && input.model.api.npm === "@ai-sdk/anthropic") {
     result["thinking"] = { type: "adaptive" }
diff --git a/packages/opencode/test/provider/transform.test.ts b/packages/opencode/test/provider/transform.test.ts
index d9a980d966ac..382d38757d3b 100644
--- a/packages/opencode/test/provider/transform.test.ts
+++ b/packages/opencode/test/provider/transform.test.ts
@@ -2483,6 +2483,31 @@ describe("ProviderTransform.message - cache control on gateway", () => {
   })
 })
 
+describe("ProviderTransform.options - Cohere North", () => {
+  test("disables citations by default for north-mini-code-1-0", () => {
+    const result = ProviderTransform.options({
+      model: {
+        id: "cohere/north-mini-code-1-0",
+        providerID: "cohere",
+        api: {
+          id: "North-Mini-Code-1-0-latest",
+          url: "https://api.cohere.com/compatibility/v1",
+          npm: "@ai-sdk/openai-compatible",
+        },
+        capabilities: { reasoning: true },
+      } as any,
+      sessionID: "test-session-123",
+    })
+    expect(result.options).toEqual({ citation_options: { mode: "disabled" } })
+  })
+})
+
+describe("ProviderTransform.temperature - Cohere North", () => {
+  test("defaults north-mini-code models to 1.0", () => {
+    expect(ProviderTransform.temperature({ id: "cohere/North-Mini-Code-1-0-latest" } as any)).toBe(1.0)
+  })
+})
+
 describe("ProviderTransform.variants", () => {
   const createMockModel = (overrides: Partial<any> = {}): any => ({
     id: "test/test-model",
@@ -3209,6 +3234,23 @@ describe("ProviderTransform.variants", () => {
       expect(result.low).toEqual({ reasoningEffort: "low" })
       expect(result.high).toEqual({ reasoningEffort: "high" })
     })
+
+    test("north-mini-code-1-0 returns only none and high", () => {
+      const model = createMockModel({
+        id: "cohere/north-mini-code-1-0",
+        providerID: "cohere",
+        api: {
+          id: "North-Mini-Code-1-0-latest",
+          url: "https://api.cohere.com/compatibility/v1",
+          npm: "@ai-sdk/openai-compatible",
+        },
+      })
+      const result = ProviderTransform.variants(model)
+      expect(result).toEqual({
+        none: { reasoningEffort: "none" },
+        high: { reasoningEffort: "high" },
+      })
+    })
   })
 
   describe("@ai-sdk/azure", () => {