diff --git a/src/lib/providers/openai/models.svelte b/src/lib/providers/openai/models.svelte
index 837269e..4433815 100644
--- a/src/lib/providers/openai/models.svelte
+++ b/src/lib/providers/openai/models.svelte
@@ -97,6 +97,7 @@ export const chatModels : Record<string, ModelDetail> = {
   'gpt-3.5-turbo-16k-0613': { ...gpt3516k },
   'gpt-4': { ...gpt4 },
   'gpt-4-turbo-preview': { ...gpt4128kpreview },
+  'gpt-4-turbo-2024-04-09': { ...gpt4128kpreview },
   'gpt-4-0314': { ...gpt4 },
   'gpt-4-0613': { ...gpt4 },
   'gpt-4-1106-preview': { ...gpt4128kpreview },
diff --git a/src/lib/providers/openai/request.svelte b/src/lib/providers/openai/request.svelte
index 40c0d7e..c35daa1 100644
--- a/src/lib/providers/openai/request.svelte
+++ b/src/lib/providers/openai/request.svelte
@@ -66,7 +66,7 @@ export const chatRequest = async (
             throw err
           },
           async onopen (response) {
-            if (response.ok && response.headers.get('content-type') === EventStreamContentType) {
+            if (response.ok && response.headers.get('content-type').startsWith(EventStreamContentType)) {
             // everything's good
             } else {
             // client-side errors are usually non-retriable: