diff --git a/src/__tests__/opencode_cell_actions.spec.ts b/src/__tests__/opencode_cell_actions.spec.ts
index 1eca44e..886b18d 100644
--- a/src/__tests__/opencode_cell_actions.spec.ts
+++ b/src/__tests__/opencode_cell_actions.spec.ts
@@ -184,8 +184,13 @@ describe('OpenCodeCellActions', () => {
   it('renders a model selector with the first option selected when providers are cached', () => {
     setOpenCodeProviders({
       providers: [
-        { id: 'anthropic', models: [{ id: 'claude-sonnet-4-20250514' }] },
-        { id: 'openai', models: [{ id: 'gpt-5' }] }
+        {
+          id: 'anthropic',
+          models: {
+            'claude-sonnet-4-20250514': { id: 'claude-sonnet-4-20250514' }
+          }
+        },
+        { id: 'openai', models: { 'gpt-5': { id: 'gpt-5' } } }
       ]
     });
     const cell = makeFakeCell('x = 1');
diff --git a/src/components/opencode_inline_prompt.ts b/src/components/opencode_inline_prompt.ts
index 4e4aed7..fd4b6f0 100644
--- a/src/components/opencode_inline_prompt.ts
+++ b/src/components/opencode_inline_prompt.ts
@@ -114,14 +114,13 @@ function flattenProviders(
   }
   const out: { providerId: string; modelId: string }[] = [];
   for (const p of providers.providers) {
-    // Some OpenCode Serve responses include providers without a `models`
-    // field (or with a non-array value). Guard to avoid the "p.models is
-    // not iterable" crash and simply skip such providers in the picker.
-    if (!Array.isArray(p.models)) {
+    // Per the OpenCode server docs, Provider.models is a Record keyed by
+    // modelID ({ [modelID: string]: Model }), NOT an array.
+    if (!p.models || typeof p.models !== "object") {
       continue;
     }
-    for (const m of p.models) {
-      out.push({ providerId: p.id, modelId: m.id });
+    for (const modelId of Object.keys(p.models)) {
+      out.push({ providerId: p.id, modelId });
     }
   }
   return out;
diff --git a/src/types.ts b/src/types.ts
index 8002ed5..e1b8b02 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -47,12 +47,27 @@ export interface OpenCodeFailure {
 
 export type OpenCodeResponse = OpenCodeSuccess | OpenCodeFailure;
 
-/** Response from GET /opencode-bridge/providers. */
+/** Response from GET /opencode-bridge/providers (proxies OpenCode /config/providers).
+ *
+ * Per the OpenCode server docs, `/config/providers` returns
+ * `{ providers: Provider[], default: { [providerID]: modelID } }`. Each
+ * `Provider.models` is a Record keyed by modelID (NOT an array), so we
+ * can reference a model by its string ID (also matching `default[providerID]`).
+ */
+export interface OpenCodeModel {
+  id: string;
+  name?: string;
+  [k: string]: unknown;
+}
+
 export interface OpenCodeProvider {
   id: string;
-  models: { id: string; [k: string]: unknown }[];
+  name?: string;
+  source?: string;
+  models: { [modelID: string]: OpenCodeModel };
 }
 
 export interface OpenCodeProvidersResponse {
   providers: OpenCodeProvider[];
+  default?: { [providerID: string]: string };
 }