# v0.5.20 (2026-07-07)

## Features
- **Thinking**: per-model thinking level picker on provider page — appends `(level)` suffix to copied model names for forced reasoning effort across all formats (openai, claude, gemini, deepseek, kimi, qwen, zai, minimax, hunyuan, step)
- **RTK**: add JS-native git-log filter (#2423)
- **Caveman**: add targeted upstream-aligned style rules (#2424)
- **i18n**: add Farsi (fa) language support (#2385)

## Fixes
- **Thinking**: strip `(level)` suffix from upstream `body.model` so providers no longer reject requests
- **Translator**: preserve developer instructions in openai-responses conversion (#2434)
- **count_tokens**: count structured Anthropic blocks (#2419)
- **Volcengine-ark**: clamp GLM-5 max_tokens to model output ceiling (#2428)
- **Kimi**: normalize reasoning_effort to backend enum (#2427)
- **Claude**: reconcile max_tokens vs thinking budget and lift per-model ceiling (#2381)
- **Kiro**: deliver system prompt natively, add Opus 4.5/4.7/4.8, tolerate dash version ids (#2366)
- **Headroom**: proxy dashboard through app (#2372)
- **MITM**: recover from stale lock file on server start

src/app/(dashboard)/dashboard/providers/[id]/page.js

@@ -5,8 +5,9 @@ import { useParams, useRouter } from "next/navigation";
 import Link from "next/link";
 import Image from "next/image";
 import { Card, Button, Badge, Input, Modal, CardSkeleton, OAuthModal, KiroOAuthWrapper, CursorAuthModal, IFlowCookieModal, GitLabAuthModal, Toggle, Select, EditConnectionModal, NoAuthProxyCard, ConfirmModal } from "@/shared/components";
-import { OAUTH_PROVIDERS, APIKEY_PROVIDERS, FREE_PROVIDERS, FREE_TIER_PROVIDERS, WEB_COOKIE_PROVIDERS, getProviderAlias, isOpenAICompatibleProvider, isAnthropicCompatibleProvider, AI_PROVIDERS, THINKING_CONFIG } from "@/shared/constants/providers";
+import { OAUTH_PROVIDERS, APIKEY_PROVIDERS, FREE_PROVIDERS, FREE_TIER_PROVIDERS, WEB_COOKIE_PROVIDERS, getProviderAlias, isOpenAICompatibleProvider, isAnthropicCompatibleProvider, AI_PROVIDERS } from "@/shared/constants/providers";
 import { getModelsByProviderId, getModelKind } from "@/shared/constants/models";
+import { getThinkingLevels } from "open-sse/providers/thinkingLevels.js";
 import { useCopyToClipboard } from "@/shared/hooks/useCopyToClipboard";
 import { useModelCaps } from "@/shared/hooks/useModelCaps";
 import { translate } from "@/i18n/runtime";
@@ -149,7 +150,21 @@ export default function ProviderDetailPage() {
   const hasDualAuthModes = !isCompatible && isOAuth && supportsApiKeyAuth;
   const oauthConnectionLabel = providerId === "xai" ? "Grok Build OAuth" : "OAuth";
   const apiKeyConnectionLabel = providerId === "xai" ? "xAI API Key" : "API Key";
-  const thinkingConfig = AI_PROVIDERS[providerId]?.thinkingConfig || THINKING_CONFIG.extended;
+  // Resolve suffix "(level)" for a model when a thinking level is picked and the model supports it.
+  const resolveThinkingSuffix = (modelId) => {
+    if (!thinkingMode || thinkingMode === "auto") return null;
+    const levels = getThinkingLevels(providerId, modelId);
+    return levels && levels.includes(thinkingMode) ? thinkingMode : null;
+  };
+  // Union of levels across this provider's reasoning models — drives the level picker options.
+  const providerThinkingLevels = (() => {
+    const set = new Set();
+    for (const m of models) {
+      const lv = getThinkingLevels(providerId, m.id);
+      if (lv) lv.forEach((l) => { if (l !== "none") set.add(l); });
+    }
+    return set.size ? ["auto", ...[...set]] : null;
+  })();
   
   const providerStorageAlias = isCompatible ? providerId : providerAlias;
   const providerDisplayAlias = isCompatible
@@ -1065,6 +1080,7 @@ export default function ProviderDetailPage() {
             isCustom
             isFree={false}
             caps={getCaps(`${providerId}/${model.id}`)}
+            thinkingSuffix={resolveThinkingSuffix(model.id)}
           />
         ))}
 
@@ -1090,6 +1106,7 @@ export default function ProviderDetailPage() {
               isFree={model.isFree}
               onDisable={() => handleDisableModel(model.id)}
               caps={getCaps(`${providerId}/${model.id}`)}
+              thinkingSuffix={resolveThinkingSuffix(model.id)}
             />
           );
         })}
@@ -1395,21 +1412,6 @@ export default function ProviderDetailPage() {
                   )}
                 </>
               )}
-              {/* Thinking config */}
-              {/* {thinkingConfig && (
-                <div className="flex items-center gap-2">
-                  <span className="text-xs text-text-muted font-medium">Thinking</span>
-                  <select
-                    value={thinkingMode}
-                    onChange={(e) => handleThinkingModeChange(e.target.value)}
-                    className="text-xs px-2 py-1 border border-border rounded-md bg-background focus:outline-none focus:border-primary"
-                  >
-                    {thinkingConfig.options.map((opt) => (
-                      <option key={opt} value={opt}>{opt.charAt(0).toUpperCase() + opt.slice(1)}</option>
-                    ))}
-                  </select>
-                </div>
-              )} */}
               {/* Round Robin toggle */}
               <div className="flex flex-wrap items-center gap-2">
                 <span className="text-xs text-text-muted font-medium">Round Robin</span>
@@ -1580,9 +1582,23 @@ export default function ProviderDetailPage() {
       {/* Models */}
       <Card>
         <div className="mb-4 flex flex-col gap-2 sm:flex-row sm:items-center sm:justify-between">
-          <h2 className="text-lg font-semibold">
-            {"Available Models"}
-          </h2>
+          <div className="flex items-center gap-3">
+            <h2 className="text-lg font-semibold">
+              {"Available Models"}
+            </h2>
+            {providerThinkingLevels && (
+              <select
+                value={thinkingMode}
+                onChange={(e) => handleThinkingModeChange(e.target.value)}
+                title="Appends (level) suffix to copied model names"
+                className="rounded-md border border-border bg-background px-2 py-1 text-xs focus:border-primary focus:outline-none"
+              >
+                {providerThinkingLevels.map((opt) => (
+                  <option key={opt} value={opt}>{`Thinking: ${opt.charAt(0).toUpperCase() + opt.slice(1)}`}</option>
+                ))}
+              </select>
+            )}
+          </div>
           {!isCompatible && (() => {
             const allIds = [
               ...models,