I’ve been trying to use Gemini 3 Flash/Pro for weeks now but I keep getting “Unable to reach the model provider”. This only happens with the Gemini 3 models. All the other models work.
Steps to Reproduce
Select Gemini 3 Flash/Pro models in the Agent tab. Try to use them.
Operating System
MacOS
Current Cursor Version (Menu → About Cursor → Copy)
For AI issues: add Request ID with privacy disabled
Request ID: c56c0e27-d4cb-4300-938a-8e619c533461
{“error”:“ERROR_OPENAI”,“details”:{“title”:“Unable to reach the model provider”,“detail”:“We’re having trouble connecting to the model provider. This might be temporary - please try again in a moment.”,“additionalInfo”:{},“buttons”:,“planChoices”:},“isExpected”:false}
Request ID: 67f5e06b-24b9-43c5-933d-fcb5156f3463
{“error”:“ERROR_OPENAI”,“details”:{“title”:“Unable to reach the model provider”,“detail”:“We’re having trouble connecting to the model provider. This might be temporary - please try again in a moment.”,“additionalInfo”:{},“buttons”:,“planChoices”:},“isExpected”:false}
Gemini 3 Flash/Pro have been working pretty consistently for me. I wonder if there’s something else going on in your environment that is causing the issue.
I took a look at the Request IDs you provided – can you try turning off any MCP servers you have turned on in Cursor Settings > Tools & MCP? Let me know if that makes Gemini 3 Flash, for example, start working in a new chat.
Oh wow, thanks @Colin ! I only had one MCP server enabled (Craft Connect Craft to Other MCP Clients with MCP ) and turning that off made Gemini work. That’s so weird since all the other models worked with that MCP on.
@hmeng@Ala_Ben_Aicha – this particular ticket (for a better error message) is still open on our side. Can you confirm you’re also using the Craft MCP server?
