From 80fd4b64c517adeb49f0a516fc2e919d97630f40 Mon Sep 17 00:00:00 2001
From: "claude[bot]" <41898282+claude[bot]@users.noreply.github.com>
Date: Tue, 3 Feb 2026 22:47:41 +0000
Subject: [PATCH 1/2] Remove Kimi K2 Thinking model and thinking toggle
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- Remove kimi-k2-thinking from MODEL_CONFIG
- Update CATEGORY_MODELS.reasoning_on to use kimi-k2-5
- Add backwards compatibility alias: kimi-k2-thinking → kimi-k2-5
- Remove thinking toggle buttons and Brain icon from UnifiedChat
- Clean up unused imports

Fixes #412

Co-Authored-By: Anthony <AnthonyRonning@users.noreply.github.com>
---
 frontend/src/components/ModelSelector.tsx |  9 +--
 frontend/src/components/UnifiedChat.tsx   | 71 +----------------------
 frontend/src/utils/utils.ts               |  5 ++
 3 files changed, 7 insertions(+), 78 deletions(-)

diff --git a/frontend/src/components/ModelSelector.tsx b/frontend/src/components/ModelSelector.tsx
index 36dcccebf..4bb5eed81 100644
--- a/frontend/src/components/ModelSelector.tsx
+++ b/frontend/src/components/ModelSelector.tsx
@@ -68,13 +68,6 @@ export const MODEL_CONFIG: Record<string, ModelCfg> = {
     requiresPro: true,
     tokenLimit: 130000
   },
-  "kimi-k2-thinking": {
-    displayName: "Kimi K2 Thinking",
-    shortName: "Kimi K2",
-    badges: ["Pro", "Reasoning"],
-    requiresPro: true,
-    tokenLimit: 256000
-  },
   "kimi-k2-5": {
     displayName: "Kimi K2.5",
     shortName: "Kimi K2.5",
@@ -113,7 +106,7 @@ type ModelCategory = "free" | "quick" | "reasoning" | "math" | "image" | "advanc
 export const CATEGORY_MODELS = {
   free: "llama-3.3-70b",
   quick: "gpt-oss-120b",
-  reasoning_on: "kimi-k2-thinking", // Kimi K2 with thinking
+  reasoning_on: "kimi-k2-5", // Kimi K2.5 with thinking
   reasoning_off: "deepseek-r1-0528", // DeepSeek R1 without thinking
   math: "kimi-k2-5",
   image: "qwen3-vl-30b" // Qwen3-VL for image analysis
diff --git a/frontend/src/components/UnifiedChat.tsx b/frontend/src/components/UnifiedChat.tsx
index d976d974b..830958ee2 100644
--- a/frontend/src/components/UnifiedChat.tsx
+++ b/frontend/src/components/UnifiedChat.tsx
@@ -36,7 +36,6 @@ import {
   Search,
   Loader2,
   Globe,
-  Brain,
   Maximize2,
   Minimize2,
   Volume2,
@@ -54,7 +53,7 @@ import { truncateMarkdownPreservingLinks } from "@/utils/markdown";
 import { useOpenAI } from "@/ai/useOpenAi";
 import { DEFAULT_MODEL_ID } from "@/state/LocalStateContext";
 import { Markdown, ThinkingBlock } from "@/components/markdown";
-import { ModelSelector, CATEGORY_MODELS } from "@/components/ModelSelector";
+import { ModelSelector } from "@/components/ModelSelector";
 import { useLocalState } from "@/state/useLocalState";
 import { useOpenSecret } from "@opensecret/react";
 import { UpgradePromptDialog } from "@/components/UpgradePromptDialog";
@@ -2919,40 +2918,6 @@ export function UnifiedChat() {
                             }
                           />
 
-                          {/* Thinking toggle button - visible when reasoning model is selected */}
-                          {(localState.model === CATEGORY_MODELS.reasoning_on ||
-                            localState.model === CATEGORY_MODELS.reasoning_off) && (
-                            <Button
-                              type="button"
-                              variant="ghost"
-                              size="sm"
-                              className="h-8 w-8 p-0"
-                              onClick={() => {
-                                const newThinkingEnabled = !localState.thinkingEnabled;
-                                localState.setThinkingEnabled(newThinkingEnabled);
-                                // Switch between Kimi K2 (with thinking) and DeepSeek R1 (without)
-                                localState.setModel(
-                                  newThinkingEnabled
-                                    ? CATEGORY_MODELS.reasoning_on
-                                    : CATEGORY_MODELS.reasoning_off
-                                );
-                              }}
-                              aria-label={
-                                localState.thinkingEnabled
-                                  ? "Disable thinking mode"
-                                  : "Enable thinking mode"
-                              }
-                            >
-                              <Brain
-                                className={`h-4 w-4 ${
-                                  localState.thinkingEnabled
-                                    ? "text-purple-500"
-                                    : "text-muted-foreground"
-                                }`}
-                              />
-                            </Button>
-                          )}
-
                           {/* Web search toggle button - always visible */}
                           <Button
                             type="button"
@@ -3196,40 +3161,6 @@ export function UnifiedChat() {
                           }
                         />
 
-                        {/* Thinking toggle button - visible when reasoning model is selected */}
-                        {(localState.model === CATEGORY_MODELS.reasoning_on ||
-                          localState.model === CATEGORY_MODELS.reasoning_off) && (
-                          <Button
-                            type="button"
-                            variant="ghost"
-                            size="sm"
-                            className="h-8 w-8 p-0"
-                            onClick={() => {
-                              const newThinkingEnabled = !localState.thinkingEnabled;
-                              localState.setThinkingEnabled(newThinkingEnabled);
-                              // Switch between Kimi K2 (with thinking) and DeepSeek R1 (without)
-                              localState.setModel(
-                                newThinkingEnabled
-                                  ? CATEGORY_MODELS.reasoning_on
-                                  : CATEGORY_MODELS.reasoning_off
-                              );
-                            }}
-                            aria-label={
-                              localState.thinkingEnabled
-                                ? "Disable thinking mode"
-                                : "Enable thinking mode"
-                            }
-                          >
-                            <Brain
-                              className={`h-4 w-4 ${
-                                localState.thinkingEnabled
-                                  ? "text-purple-500"
-                                  : "text-muted-foreground"
-                              }`}
-                            />
-                          </Button>
-                        )}
-
                         {/* Web search toggle button - always visible */}
                         <Button
                           type="button"
diff --git a/frontend/src/utils/utils.ts b/frontend/src/utils/utils.ts
index 7703da1ae..0d16ab951 100644
--- a/frontend/src/utils/utils.ts
+++ b/frontend/src/utils/utils.ts
@@ -93,5 +93,10 @@ export function aliasModelName(modelName: string | undefined): string {
     return "kimi-k2-5";
   }
 
+  // Backwards compatibility: alias old k2-thinking to k2.5
+  if (modelName === "kimi-k2-thinking") {
+    return "kimi-k2-5";
+  }
+
   return modelName;
 }

From ce9d72c53697891fc8ae96d9aa6d2c2314a5d93d Mon Sep 17 00:00:00 2001
From: "claude[bot]" <41898282+claude[bot]@users.noreply.github.com>
Date: Tue, 3 Feb 2026 23:20:29 +0000
Subject: [PATCH 2/2] Remove reasoning_on/reasoning_off logic and category

Simplified the implementation by completely removing the reasoning_on and
reasoning_off category logic as requested. The kimi-k2-thinking model was
already removed, now the reasoning category and all its associated logic
have been removed as well.

Changes:
- Removed reasoning_on and reasoning_off from CATEGORY_MODELS
- Removed reasoning category from CATEGORY_INFO
- Removed thinking sync useEffect
- Removed reasoning checks from getCurrentCategory()
- Simplified handleCategorySelect() to remove reasoning logic
- Removed "reasoning" from category list in dropdown
- Removed reasoning checks from isActive calculation
- Removed Brain icon import
- Removed unused thinkingEnabled/setThinkingEnabled destructuring
- Updated ModelCategory type to remove "reasoning"

Co-Authored-By: Anthony <AnthonyRonning@users.noreply.github.com>
---
 frontend/src/components/ModelSelector.tsx | 49 +++--------------------
 1 file changed, 5 insertions(+), 44 deletions(-)

diff --git a/frontend/src/components/ModelSelector.tsx b/frontend/src/components/ModelSelector.tsx
index 4bb5eed81..c7bcf7c10 100644
--- a/frontend/src/components/ModelSelector.tsx
+++ b/frontend/src/components/ModelSelector.tsx
@@ -6,7 +6,6 @@ import {
   ChevronLeft,
   Sparkles,
   Zap,
-  Brain,
   Code,
   Image
 } from "lucide-react";
@@ -101,13 +100,11 @@ export function getModelTokenLimit(modelId: string): number {
 }
 
 // Model categories for simplified UI
-type ModelCategory = "free" | "quick" | "reasoning" | "math" | "image" | "advanced";
+type ModelCategory = "free" | "quick" | "math" | "image" | "advanced";
 
 export const CATEGORY_MODELS = {
   free: "llama-3.3-70b",
   quick: "gpt-oss-120b",
-  reasoning_on: "kimi-k2-5", // Kimi K2.5 with thinking
-  reasoning_off: "deepseek-r1-0528", // DeepSeek R1 without thinking
   math: "kimi-k2-5",
   image: "qwen3-vl-30b" // Qwen3-VL for image analysis
 };
@@ -123,11 +120,6 @@ const CATEGORY_INFO = {
     icon: Zap,
     description: "Fastest responses"
   },
-  reasoning: {
-    label: "Reasoning",
-    icon: Brain,
-    description: "Deep analysis"
-  },
   math: {
     label: "Math/Coding",
     icon: Code,
@@ -147,9 +139,7 @@ export function ModelSelector({ hasImages = false }: { hasImages?: boolean }) {
     availableModels,
     setAvailableModels,
     billingStatus,
-    setHasWhisperModel,
-    thinkingEnabled,
-    setThinkingEnabled
+    setHasWhisperModel
   } = useLocalState();
   const os = useOpenSecret();
   const isFetching = useRef(false);
@@ -236,16 +226,6 @@ export function ModelSelector({ hasImages = false }: { hasImages?: boolean }) {
     }
   }, [os, setAvailableModels, setHasWhisperModel]);
 
-  // Sync thinking toggle when model changes externally
-  useEffect(() => {
-    if (model === CATEGORY_MODELS.reasoning_on) {
-      setThinkingEnabled(true);
-    } else if (model === CATEGORY_MODELS.reasoning_off) {
-      setThinkingEnabled(false);
-    }
-    // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [model]);
-
   // Auto-switch to image analysis when images are uploaded
   useEffect(() => {
     if (chatHasImages && hasAccessToModel(CATEGORY_MODELS.image)) {
@@ -262,9 +242,6 @@ export function ModelSelector({ hasImages = false }: { hasImages?: boolean }) {
   const getCurrentCategory = (): string => {
     if (model === CATEGORY_MODELS.free) return "General";
     if (model === CATEGORY_MODELS.quick) return "Quick";
-    if (model === CATEGORY_MODELS.reasoning_on || model === CATEGORY_MODELS.reasoning_off) {
-      return "Reasoning";
-    }
     if (model === CATEGORY_MODELS.math) return "Math/Coding";
     if (model === CATEGORY_MODELS.image) return "Image Analysis";
     // If in advanced mode, show model name
@@ -306,15 +283,7 @@ export function ModelSelector({ hasImages = false }: { hasImages?: boolean }) {
       return;
     }
 
-    let targetModel: string;
-    if (category === "reasoning") {
-      // Use thinking state to pick R1 vs V3.1
-      targetModel = thinkingEnabled ? CATEGORY_MODELS.reasoning_on : CATEGORY_MODELS.reasoning_off;
-    } else if (category === "image") {
-      targetModel = CATEGORY_MODELS.image;
-    } else {
-      targetModel = CATEGORY_MODELS[category as keyof typeof CATEGORY_MODELS];
-    }
+    const targetModel = CATEGORY_MODELS[category as keyof typeof CATEGORY_MODELS];
 
     // Prevent switching to non-vision models if chat has images
     const targetModelConfig = MODEL_CONFIG[targetModel];
@@ -434,25 +403,17 @@ export function ModelSelector({ hasImages = false }: { hasImages?: boolean }) {
           {!showAdvanced ? (
             <div className="p-1 h-[300px] flex flex-col">
               {/* Category options */}
-              {(["free", "quick", "reasoning", "math", "image"] as const).map((category) => {
+              {(["free", "quick", "math", "image"] as const).map((category) => {
                 const info = CATEGORY_INFO[category];
                 const Icon = info.icon;
                 const isActive =
                   (category === "free" && model === CATEGORY_MODELS.free) ||
                   (category === "quick" && model === CATEGORY_MODELS.quick) ||
-                  (category === "reasoning" &&
-                    (model === CATEGORY_MODELS.reasoning_on ||
-                      model === CATEGORY_MODELS.reasoning_off)) ||
                   (category === "math" && model === CATEGORY_MODELS.math) ||
                   (category === "image" && model === CATEGORY_MODELS.image);
 
                 // Check if user has access to this category's model
-                const targetModel =
-                  category === "reasoning"
-                    ? thinkingEnabled
-                      ? CATEGORY_MODELS.reasoning_on
-                      : CATEGORY_MODELS.reasoning_off
-                    : CATEGORY_MODELS[category];
+                const targetModel = CATEGORY_MODELS[category];
                 const hasAccess = hasAccessToModel(targetModel);
                 const targetModelConfig = MODEL_CONFIG[targetModel];
                 const requiresUpgrade = !hasAccess;