diff --git a/default/content/presets/openai/Default.json b/default/content/presets/openai/Default.json
index 81e82a389..4e6076d5a 100644
--- a/default/content/presets/openai/Default.json
+++ b/default/content/presets/openai/Default.json
@@ -8,7 +8,7 @@
     "openrouter_force_instruct": false,
     "openrouter_group_models": false,
     "openrouter_sort_models": "alphabetically",
-    "ai21_model": "jamba-1.5-mini",
+    "ai21_model": "jamba-1.5-large",
     "mistralai_model": "mistral-large-latest",
     "custom_model": "",
     "custom_url": "",
diff --git a/default/content/settings.json b/default/content/settings.json
index 4bb36d9ea..e84e73705 100644
--- a/default/content/settings.json
+++ b/default/content/settings.json
@@ -613,7 +613,7 @@
         "wi_format": "{0}",
         "openai_model": "gpt-4-turbo",
         "claude_model": "claude-3-5-sonnet-20240620",
-        "ai21_model": "jamba-1.5-mini",
+        "ai21_model": "jamba-1.5-large",
         "windowai_model": "",
         "openrouter_model": "OR_Website",
         "jailbreak_system": true,
diff --git a/public/scripts/openai.js b/public/scripts/openai.js
index 9c5d2d524..8164c3059 100644
--- a/public/scripts/openai.js
+++ b/public/scripts/openai.js
@@ -246,7 +246,7 @@ const default_settings = {
     openai_model: 'gpt-4-turbo',
     claude_model: 'claude-3-5-sonnet-20240620',
     google_model: 'gemini-1.5-pro',
-    ai21_model: 'jamba-1.5-mini',
+    ai21_model: 'jamba-1.5-large',
     mistralai_model: 'mistral-large-latest',
     cohere_model: 'command-r-plus',
     perplexity_model: 'llama-3.1-70b-instruct',
@@ -324,7 +324,7 @@ const oai_settings = {
     openai_model: 'gpt-4-turbo',
     claude_model: 'claude-3-5-sonnet-20240620',
     google_model: 'gemini-1.5-pro',
-    ai21_model: 'jamba-1.5-mini',
+    ai21_model: 'jamba-1.5-large',
     mistralai_model: 'mistral-large-latest',
     cohere_model: 'command-r-plus',
     perplexity_model: 'llama-3.1-70b-instruct',
@@ -3041,7 +3041,7 @@ function loadOpenAISettings(data, settings) {
     }
 
     if (oai_settings.ai21_model.startsWith('j2-')) {
-        oai_settings.ai21_model = 'jamba-1.5-mini';
+        oai_settings.ai21_model = 'jamba-1.5-large';
     }
 
     if (settings.wrap_in_quotes !== undefined) oai_settings.wrap_in_quotes = !!settings.wrap_in_quotes;
@@ -3979,6 +3979,10 @@ async function onModelChange() {
     }
 
     if ($(this).is('#model_ai21_select')) {
+        if (value.startsWith('j2-')) {
+            value = 'jamba-1.5-large';
+        }
+
         console.log('AI21 model changed to', value);
         oai_settings.ai21_model = value;
     }