From f82d4300a4717f5ed035ef27c47f75559d0a8439 Mon Sep 17 00:00:00 2001
From: Danny Avila <danny@librechat.ai>
Date: Sat, 28 Mar 2026 23:44:58 -0400
Subject: [PATCH] =?UTF-8?q?=F0=9F=A7=B9=20chore:=20Remove=20Deprecated=20G?=
 =?UTF-8?q?emini=202.0=20Models=20&=20Fix=20Mistral-Large-3=20Context=20Wi?=
 =?UTF-8?q?ndow=20(#12453)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

* chore: remove deprecated Gemini 2.0 models from default models list

Remove gemini-2.0-flash-001 and gemini-2.0-flash-lite from the Google
default models array, as they have been deprecated by Google.

Closes #12444

* fix: add mistral-large-3 max context tokens (256k)

Add mistral-large-3 with 255000 max context tokens to the mistralModels
map. Without this entry, the model falls back to the generic
mistral-large key (131k), causing context window errors when using
tools with Azure AI Foundry deployments.

Closes #12429

* test: add mistral-large-3 token resolution tests and fix key ordering

Add test coverage for mistral-large-3 context token resolution,
verifying exact match, suffixed variants, and longest-match precedence
over the generic mistral-large key. Reorder the mistral-large-3 entry
after mistral-large to follow the file's documented convention of
listing newer models last for reverse-scan performance.
---
 api/utils/tokens.spec.js             | 54 ++++++++++++++++++++++++++++
 packages/api/src/utils/tokens.ts     |  1 +
 packages/data-provider/src/config.ts |  3 --
 3 files changed, 55 insertions(+), 3 deletions(-)

diff --git a/api/utils/tokens.spec.js b/api/utils/tokens.spec.js
index 6cecdb95c8..dfa6762ee5 100644
--- a/api/utils/tokens.spec.js
+++ b/api/utils/tokens.spec.js
@@ -1813,3 +1813,57 @@ describe('GLM Model Tests (Zhipu AI)', () => {
     });
   });
 });
+
+describe('Mistral Model Tests', () => {
+  describe('getModelMaxTokens', () => {
+    test('should return correct tokens for mistral-large-3 (256k context)', () => {
+      expect(getModelMaxTokens('mistral-large-3', EModelEndpoint.custom)).toBe(
+        maxTokensMap[EModelEndpoint.custom]['mistral-large-3'],
+      );
+    });
+
+    test('should match mistral-large-3 for suffixed variants', () => {
+      expect(getModelMaxTokens('mistral-large-3-instruct', EModelEndpoint.custom)).toBe(
+        maxTokensMap[EModelEndpoint.custom]['mistral-large-3'],
+      );
+    });
+
+    test('should not match mistral-large-3 for generic mistral-large', () => {
+      expect(getModelMaxTokens('mistral-large', EModelEndpoint.custom)).toBe(
+        maxTokensMap[EModelEndpoint.custom]['mistral-large'],
+      );
+      expect(getModelMaxTokens('mistral-large-latest', EModelEndpoint.custom)).toBe(
+        maxTokensMap[EModelEndpoint.custom]['mistral-large'],
+      );
+    });
+  });
+
+  describe('matchModelName', () => {
+    test('should match mistral-large-3 exactly', () => {
+      expect(matchModelName('mistral-large-3', EModelEndpoint.custom)).toBe('mistral-large-3');
+    });
+
+    test('should match mistral-large-3 for prefixed/suffixed variants', () => {
+      expect(matchModelName('mistral/mistral-large-3', EModelEndpoint.custom)).toBe(
+        'mistral-large-3',
+      );
+      expect(matchModelName('mistral-large-3-instruct', EModelEndpoint.custom)).toBe(
+        'mistral-large-3',
+      );
+    });
+
+    test('should match generic mistral-large for non-3 variants', () => {
+      expect(matchModelName('mistral-large-latest', EModelEndpoint.custom)).toBe('mistral-large');
+    });
+  });
+
+  describe('findMatchingPattern', () => {
+    test('should prefer mistral-large-3 over mistral-large for mistral-large-3 variants', () => {
+      const result = findMatchingPattern(
+        'mistral-large-3-instruct',
+        maxTokensMap[EModelEndpoint.custom],
+      );
+      expect(result).toBe('mistral-large-3');
+    });
+  });
+});
diff --git a/packages/api/src/utils/tokens.ts b/packages/api/src/utils/tokens.ts
index ae09da4f28..14215698a6 100644
--- a/packages/api/src/utils/tokens.ts
+++ b/packages/api/src/utils/tokens.ts
@@ -72,6 +72,7 @@ const mistralModels = {
   'mistral-large-2402': 127500,
   'mistral-large-2407': 127500,
   'mistral-large': 131000,
+  'mistral-large-3': 255000,
   'mistral-saba': 32000,
   'ministral-3b': 131000,
   'ministral-8b': 131000,
diff --git a/packages/data-provider/src/config.ts b/packages/data-provider/src/config.ts
index e641d7b63a..bb89c56f82 100644
--- a/packages/data-provider/src/config.ts
+++ b/packages/data-provider/src/config.ts
@@ -1238,9 +1238,6 @@ export const defaultModels = {
     'gemini-2.5-pro',
     'gemini-2.5-flash',
     'gemini-2.5-flash-lite',
-    // Gemini 2.0 Models
-    'gemini-2.0-flash-001',
-    'gemini-2.0-flash-lite',
   ],
   [EModelEndpoint.anthropic]: sharedAnthropicModels,
   [EModelEndpoint.openAI]: [