feat(opencode-go): complete Go catalog (40 models) with auto-fetch + family endpoint regex

- Add 12 missing models from live /zen/go/v1/models (glm-5, kimi-k2.5,
  mimo v2/v2.6 line, qwen3.5-plus, grok-4.5/4.7, omen-alpha, ...)
- modelsFetcher + passthroughModels + "opencode-go" suggested-models filter
- Family regex fallback (opencodeFamilyFormats) keeps unknown/passthrough ids
  on the right endpoint lane (/responses, /messages, /chat/completions);
  curated registry entries always win
- isResponsesModel now routes passthrough grok/gpt ids to /responses

Co-Authored-By: Claude Code <noreply@anthropic.com>

open-sse/config/providerModels.js

@@ -3,10 +3,13 @@ import REGISTRY from "../providers/registry/index.js";
 // PROVIDER_MODELS now built from providers/registry (transport + models co-located)
 import { PROVIDER_MODELS } from "../providers/index.js";
 import { modelQuotaFamily, modelStrip, modelTargetFormat, modelSupportedFormats, normalizeModelId } from "../providers/models/schema.js";
-import { CODEX_REVIEW_SUFFIX, isMuseSparkModel } from "../providers/models/helpers.js";
+import { CODEX_REVIEW_SUFFIX, isMuseSparkModel, opencodeFamilyFormats } from "../providers/models/helpers.js";
 import { FORMATS } from "../translator/formats.js";
 export { PROVIDER_MODELS };
 
+// OpenCode providers sharing the endpoint-family fallback for unknown model ids
+const isOpenCodeAlias = (aliasOrId) => !aliasOrId || ["oc", "opencode", "ocg", "opencode-go", "ocz", "opencode-zen"].includes(aliasOrId);
+
 
 // Helper functions
 export function getProviderModels(aliasOrId) {
@@ -53,20 +56,29 @@ export function findModelName(aliasOrId, modelId) {
 }
 
 export function getModelTargetFormat(aliasOrId, modelId) {
-  if ((!aliasOrId || aliasOrId === "oc" || aliasOrId === "opencode" || aliasOrId === "ocg" || aliasOrId === "opencode-go" || aliasOrId === "ocz" || aliasOrId === "opencode-zen") && isMuseSparkModel(modelId)) {
+  if (isOpenCodeAlias(aliasOrId) && isMuseSparkModel(modelId)) {
     return FORMATS.OPENAI_RESPONSES;
   }
   const models = PROVIDER_MODELS[aliasOrId];
   if (!models) return null;
-  return modelTargetFormat(findModel(models, modelId, aliasOrId));
+  const found = findModel(models, modelId, aliasOrId);
+  if (found) return modelTargetFormat(found);
+  // Family fallback keeps modelsFetcher/passthrough ids on their endpoint lane
+  if (isOpenCodeAlias(aliasOrId)) return opencodeFamilyFormats(modelId)?.targetFormat || null;
+  return null;
 }
 
 // Declared upstream formats for a model (registry `supportedFormats`). Drives the
 // per-model guard on the sourceFormat-matched transport; null when undeclared.
+// Unknown OpenCode ids fall back to the family regex (chat lane by default) so
+// auto-fetched models never wrongly use the sourceFormat-matched transport.
 export function getModelSupportedFormats(aliasOrId, modelId) {
   const models = PROVIDER_MODELS[aliasOrId];
   if (!models) return null;
-  return modelSupportedFormats(findModel(models, modelId, aliasOrId));
+  const found = findModel(models, modelId, aliasOrId);
+  if (found) return modelSupportedFormats(found);
+  if (isOpenCodeAlias(aliasOrId)) return opencodeFamilyFormats(modelId)?.supportedFormats || [FORMATS.OPENAI];
+  return null;
 }
 
 export function getModelType(aliasOrId, modelId) {

open-sse/executors/opencode-go.js

@@ -1,8 +1,8 @@
 import crypto from "node:crypto";
 import { DefaultExecutor } from "./default.js";
 import { resolveSessionId } from "../utils/sessionManager.js";
-import { modelTargetFormat } from "../providers/models/schema.js";
+import { getModelTargetFormat } from "../config/providerModels.js";
-import { getProviderModels } from "../config/providerModels.js";
+import { FORMATS } from "../translator/formats.js";
 import {
   normalizeResponsesInput,
   clampResponsesCallId,
@@ -41,16 +41,10 @@ function translatedSession(sessionId, clientTool) {
   return `ses_${digest}`;
 }
 
-// Strip the thinking suffix "model(level)" so checks hit the base id.
+// Responses-only per the provider registry (grok-4.6, gpt-5.6-luna, muse-spark, …),
-function baseModelId(model) {
+// including the family-regex fallback for passthrough ids — never hardcode model ids here.
-  return String(model || "").replace(/\([^()]+\)\s*$/, "").trim();
-}
-
-// Responses-only per the provider registry (grok-4.6, gpt-5.6-luna, muse-spark, …).
-// Reading the registry keeps this in sync with config — never hardcode model ids here.
 function isResponsesModel(model) {
-  const entry = getProviderModels("opencode-go").find((m) => m.id === baseModelId(model));
+  return getModelTargetFormat("opencode-go", model) === FORMATS.OPENAI_RESPONSES;
-  return modelTargetFormat(entry) === "openai-responses";
 }
 
 // Flatten Chat Completions tool declarations into the Responses flat shape and

open-sse/providers/models/helpers.js

@@ -1,3 +1,5 @@
+import { FORMATS } from "../../translator/formats.js";
+
 // Codex auto-generates a "-review" variant for each llm model (review quota family)
 export const CODEX_REVIEW_SUFFIX = "-review";
 
@@ -25,3 +27,20 @@ export function isMuseSparkModel(modelId) {
   const base = clean.includes("/") ? clean.split("/").pop() : clean;
   return /^muse[-_]?spark(?:$|[-_:.\s])/i.test(base);
 }
+
+// Endpoint families for OpenCode models outside the curated registry (modelsFetcher /
+// passthrough ids) — regex keeps auto-fetched models on the right endpoint:
+// /responses (gpt/grok/muse-spark), /messages (minimax/qwen), /chat/completions (rest).
+// Curated registry entries always win; this is the unknown-id fallback only.
+const OPENCODE_FAMILIES = [
+  { match: /^(grok|gpt|muse[-_]?spark)/i, supportedFormats: [FORMATS.OPENAI_RESPONSES], targetFormat: FORMATS.OPENAI_RESPONSES },
+  { match: /^deepseek-v4-(pro|flash)/, supportedFormats: [FORMATS.OPENAI, FORMATS.CLAUDE, FORMATS.OPENAI_RESPONSES] },
+  { match: /^(minimax|qwen)/, supportedFormats: [FORMATS.OPENAI, FORMATS.CLAUDE] },
+  { match: /^claude-/i, supportedFormats: [FORMATS.CLAUDE] },
+];
+
+export function opencodeFamilyFormats(modelId) {
+  if (!modelId || typeof modelId !== "string") return null;
+  const base = modelId.replace(/\([^()]+\)\s*$/, "").trim();
+  return OPENCODE_FAMILIES.find((f) => f.match.test(base)) || null;
+}

open-sse/providers/registry/opencode-go.js

@@ -35,20 +35,27 @@ export default {
   ],
   // supportedFormats follow the endpoint table in https://opencode.ai/docs/go/
   models: [
-    { id: "deepseek-flash", name: "DeepSeek V4.1 Flash", supportedFormats: ["openai"] },
+    { id: "deepseek-flash", name: "DeepSeek Flash", supportedFormats: ["openai"] },
     { id: "glm-5.3-flash", name: "GLM 5.3 Flash (Vision)", supportedFormats: ["openai"] },
     { id: "glm-5.3", name: "GLM 5.3", supportedFormats: ["openai"] },
     { id: "glm-5.2", name: "GLM 5.2", supportedFormats: ["openai"] },
     { id: "glm-5.1", name: "GLM 5.1", supportedFormats: ["openai"] },
+    { id: "glm-5", name: "GLM 5", supportedFormats: ["openai"] },
     { id: "kimi-k2.7-code", name: "Kimi K2.7 Code", supportedFormats: ["openai"] },
     { id: "kimi-k2.6", name: "Kimi K2.6", supportedFormats: ["openai"] },
+    { id: "kimi-k2.5", name: "Kimi K2.5", supportedFormats: ["openai"] },
     { id: "kimi-k3", name: "Kimi K3", supportedFormats: ["openai"] },
     { id: "deepseek-v4-pro", name: "DeepSeek V4 Pro", supportedFormats: ["openai", "claude", "openai-responses"] },
     { id: "deepseek-v4-flash", name: "DeepSeek V4 Flash", supportedFormats: ["openai", "claude", "openai-responses"] },
     { id: "deepseek-v4-flash-vision-exp", name: "DeepSeek V4 Flash Vision (Exp)", supportedFormats: ["openai", "claude", "openai-responses"] },
+    { id: "deepseek-v4.1-flash", name: "DeepSeek V4.1 Flash", supportedFormats: ["openai"] },
     { id: "longcat-2.0", name: "LongCat 2.0", supportedFormats: ["openai"] },
+    { id: "mimo-v2.6-flash", name: "MiMo V2.6 Flash", supportedFormats: ["openai"] },
+    { id: "mimo-v2.6-pro", name: "MiMo V2.6 Pro", supportedFormats: ["openai"] },
     { id: "mimo-v2.5", name: "MiMo V2.5", supportedFormats: ["openai"] },
     { id: "mimo-v2.5-pro", name: "MiMo V2.5 Pro", supportedFormats: ["openai"] },
+    { id: "mimo-v2-pro", name: "MiMo V2 Pro", supportedFormats: ["openai"] },
+    { id: "mimo-v2-omni", name: "MiMo V2 Omni", supportedFormats: ["openai"] },
     { id: "minimax-m3", name: "MiniMax M3", supportedFormats: ["openai", "claude"] },
     { id: "minimax-m2.7", name: "MiniMax M2.7", supportedFormats: ["openai", "claude"] },
     { id: "minimax-m2.5", name: "MiniMax M2.5", supportedFormats: ["openai", "claude"] },
@@ -57,15 +64,25 @@ export default {
     { id: "qwen3.7-max", name: "Qwen 3.7 Max", supportedFormats: ["openai", "claude"] },
     { id: "qwen3.7-plus", name: "Qwen 3.7 Plus", supportedFormats: ["openai", "claude"] },
     { id: "qwen3.6-plus", name: "Qwen 3.6 Plus", supportedFormats: ["openai", "claude"] },
+    { id: "qwen3.5-plus", name: "Qwen 3.5 Plus", supportedFormats: ["openai", "claude"] },
     { id: "hy4-preview", name: "Hy4 Preview", supportedFormats: ["openai"] },
     { id: "hy3", name: "Hy3", supportedFormats: ["openai"] },
+    { id: "hy3-preview", name: "Hy3 Preview", supportedFormats: ["openai"] },
+    // In /zen/go/v1/models but absent from the docs endpoint table — chat lane is the fallback guess
+    { id: "omen-alpha", name: "Omen Alpha", supportedFormats: ["openai"] },
     // Served by /zen/go/v1/responses only — the responses-only entry forces chatCore
     // past the sourceFormat-matched transports into translation (see chatCore guard).
+    { id: "grok-4.7", name: "Grok 4.7", targetFormat: "openai-responses", supportedFormats: ["openai-responses"] },
     { id: "grok-4.6", name: "Grok 4.6", targetFormat: "openai-responses", supportedFormats: ["openai-responses"] },
+    { id: "grok-4.5", name: "Grok 4.5", targetFormat: "openai-responses", supportedFormats: ["openai-responses"] },
     { id: "gpt-5.6-luna", name: "GPT 5.6 Luna", targetFormat: "openai-responses", supportedFormats: ["openai-responses"] },
     { id: "muse-spark-1.2-contributor", name: "Muse Spark 1.2 Contributor", targetFormat: "openai-responses", supportedFormats: ["openai-responses"] },
     { id: "muse-spark-1.3-contributor", name: "Muse Spark 1.3 Contributor", targetFormat: "openai-responses", supportedFormats: ["openai-responses"] },
   ],
+  // Live catalogue; ids outside this curated list get their endpoint lane from the
+  // family regex in providers/models/helpers.js (opencodeFamilyFormats).
+  modelsFetcher: { url: "https://opencode.ai/zen/go/v1/models", type: "opencode-go" },
+  passthroughModels: true,
   features: {
     usage: true,
     usageApikey: true,

src/app/api/providers/suggested-models/filters.js

@@ -21,6 +21,13 @@ export const FILTERS = {
       .filter((m) => (m.id?.endsWith("-free") || KNOWN_FREE_OPENCODE_MODELS.includes(m.id)) && !DEAD_FREE_OPENCODE_MODELS.has(m.id))
       .map((m) => ({ id: m.id, name: m.id })),
 
+  // Go subscription catalogue — every /models id is selectable; the endpoint lane
+  // per model is resolved by the family regex (see open-sse/providers/models/helpers.js)
+  "opencode-go": (models) =>
+    (Array.isArray(models) ? models : [])
+      .filter((m) => typeof m?.id === "string")
+      .map((m) => ({ id: m.id, name: m.id })),
+
   // models.dev returns a large catalog; keep only mimo models
   "mimo-free": (models) =>
     (Array.isArray(models) ? models : [])

tests/unit/opencode-go-models.test.js

@@ -4,11 +4,12 @@ import { PROVIDERS } from "../../open-sse/config/providers.js";
 import { resolveTransport } from "../../open-sse/services/provider.js";
 
 // Chat-only models (no /messages, no /responses support on opencode-go)
-const CHAT_ONLY = ["glm-5.3", "glm-5.2", "glm-5.1", "kimi-k2.7-code", "kimi-k2.6", "kimi-k3",
+const CHAT_ONLY = ["glm-5.3", "glm-5.2", "glm-5.1", "glm-5", "kimi-k2.7-code", "kimi-k2.6", "kimi-k2.5", "kimi-k3",
-  "deepseek-flash", "longcat-2.0", "mimo-v2.5", "mimo-v2.5-pro", "hy4-preview", "hy3"];
+  "deepseek-flash", "deepseek-v4.1-flash", "longcat-2.0", "mimo-v2.6-flash", "mimo-v2.6-pro",
+  "mimo-v2.5", "mimo-v2.5-pro", "mimo-v2-pro", "mimo-v2-omni", "hy4-preview", "hy3", "hy3-preview", "omen-alpha"];
 // Models that also expose the Anthropic /messages endpoint
 const CLAUDE_CAPABLE = ["minimax-m3", "minimax-m2.7", "minimax-m2.5",
-  "qwen3.8-max", "qwen3.8-flash", "qwen3.7-max", "qwen3.7-plus", "qwen3.6-plus"];
+  "qwen3.8-max", "qwen3.8-flash", "qwen3.7-max", "qwen3.7-plus", "qwen3.6-plus", "qwen3.5-plus"];
 // Models that also expose the OpenAI /responses endpoint
 const RESPONSES_CAPABLE = ["deepseek-v4-pro", "deepseek-v4-flash"];
 
@@ -25,18 +26,42 @@ describe("OpenCode Go model catalog", () => {
     const ids = (PROVIDER_MODELS["opencode-go"] || []).map((m) => m.id);
     expect(ids).toEqual([
       "deepseek-flash",
-      "glm-5.3-flash", "glm-5.3", "glm-5.2", "glm-5.1", "kimi-k2.7-code", "kimi-k2.6", "kimi-k3",
+      "glm-5.3-flash", "glm-5.3", "glm-5.2", "glm-5.1", "glm-5", "kimi-k2.7-code", "kimi-k2.6", "kimi-k2.5", "kimi-k3",
-      "deepseek-v4-pro", "deepseek-v4-flash", "deepseek-v4-flash-vision-exp",
+      "deepseek-v4-pro", "deepseek-v4-flash", "deepseek-v4-flash-vision-exp", "deepseek-v4.1-flash",
-      "longcat-2.0", "mimo-v2.5", "mimo-v2.5-pro",
+      "longcat-2.0", "mimo-v2.6-flash", "mimo-v2.6-pro", "mimo-v2.5", "mimo-v2.5-pro", "mimo-v2-pro", "mimo-v2-omni",
       "minimax-m3", "minimax-m2.7", "minimax-m2.5",
-      "qwen3.8-max", "qwen3.8-flash", "qwen3.7-max", "qwen3.7-plus", "qwen3.6-plus",
+      "qwen3.8-max", "qwen3.8-flash", "qwen3.7-max", "qwen3.7-plus", "qwen3.6-plus", "qwen3.5-plus",
-      "hy4-preview", "hy3",
+      "hy4-preview", "hy3", "hy3-preview", "omen-alpha",
-      "grok-4.6", "gpt-5.6-luna",
+      "grok-4.7", "grok-4.6", "grok-4.5", "gpt-5.6-luna",
       "muse-spark-1.2-contributor", "muse-spark-1.3-contributor",
     ]);
   });
 });
 
+describe("OpenCode Go family fallback (unknown/passthrough ids)", () => {
+  it("routes unknown grok/gpt ids to the responses lane", () => {
+    expect(getModelSupportedFormats("opencode-go", "grok-4.8")).toEqual(["openai-responses"]);
+    expect(getModelTargetFormat("opencode-go", "gpt-6-foo")).toBe("openai-responses");
+  });
+
+  it("gives unknown chat-family ids the chat-only lane, never /messages", () => {
+    for (const m of ["kimi-k4", "glm-6", "mimo-v3", "omen-beta"]) {
+      expect(getModelSupportedFormats("opencode-go", m)).toEqual(["openai"]);
+    }
+  });
+
+  it("keeps unknown minimax/qwen ids on the /messages lane too", () => {
+    for (const m of ["minimax-m9", "qwen4-max"]) {
+      expect(getModelSupportedFormats("opencode-go", m)).toEqual(["openai", "claude"]);
+    }
+  });
+
+  it("curated entries win over the family regex", () => {
+    expect(getModelSupportedFormats("opencode-go", "deepseek-v4.1-flash")).toEqual(["openai"]);
+    expect(getModelSupportedFormats("opencode-go", "deepseek-v4-pro")).toEqual(["openai", "claude", "openai-responses"]);
+  });
+});
+
 describe("OpenCode Go thinking-suffix model lookup", () => {
   it("preserves Responses routing for gpt-5.6-luna thinking variants", () => {
     expect(getModelSupportedFormats("opencode-go", "gpt-5.6-luna(high)")).toEqual(["openai-responses"]);
@@ -108,7 +133,7 @@ describe("OpenCode Go per-model transport guard (chatCore logic)", () => {
   });
 
   it("routes Muse Spark (responses-only) to /responses, never to /messages", () => {
-    for (const m of ["muse-spark-1.2-contributor", "muse-spark-1.3-contributor", "grok-4.6", "gpt-5.6-luna"]) {
+    for (const m of ["muse-spark-1.2-contributor", "muse-spark-1.3-contributor", "grok-4.7", "grok-4.6", "grok-4.5", "gpt-5.6-luna"]) {
       expect(getModelSupportedFormats("opencode-go", m)).toEqual(["openai-responses"]);
       expect(pickTransport("opencode-go", "openai-responses", "opencode-go", m)?.baseUrl).toBe("https://opencode.ai/zen/go/v1/responses");
       expect(pickTransport("opencode-go", "claude", "opencode-go", m)).toBeNull();