I can't use AI at the moment: I'm sorry, I couldn't complete that request. Agent Mode request failed: Error generating AI agent output: Got error when streaming GenerateAIAgentOutputResponseChunks: Status: 400: Status: 400

[albinocordeiro-moz]

Pre-submit Checks

• [x] I have searched Warp bugs and there are no duplicates
• [x] I have searched Warp known issues page and my issue is not there
• [ ] I have included the logs (optional, but helps expedite the bug fix). Log gathering intructions

Describe the bug

I'm trying to use Sonnet 4 I get the same error message everytime now, since yesterday: I'm sorry, I couldn't complete that request.

Agent Mode request failed: Error generating AI agent output: Got error when streaming GenerateAIAgentOutputResponseChunks: Status: 400: Status: 400

To reproduce

Command+I -> write a prompt -> Return

Expected behavior

No response

Screenshots, videos, and logs

No response

Operating system (OS)

Select an OS

Operating system and version

15.5.0

Shell Version

No response

Current Warp version

v0.2025.06.18.08.11.stable_02

Regression

No, this bug or issue has existed throughout my experience using Warp

Recent working Warp date

No response

Additional context

No response

Does this block you from using Warp daily?

Yes, this issue prevents me from using Warp daily.

Is this an issue only in Warp?

Yes, I confirmed that this only happens in Warp, not other terminals.

Warp Internal (ignore): linear-label:b9d78064-c89e-4973-b153-5178a31ee54e

None

[DonatoReis]

I just updated to version: v0.2025.06.18.08.11.stable_02 (macOS Sequoia 15.5)

I am also getting (claude 4 sonnet):

I'm sorry, I couldn't complete that request.

Agent Mode request failed: Error generating AI agent output: Got error when streaming GenerateAIAgentOutputResponseChunks: Status: 400: Status: 400

[szgupta]

Hey folks, sorry about the issues here. We're working on an immediate fix. You can continue to use Agent Mode with the auto model in the meantime. I'll provide updates as they come in.

[albinocordeiro-moz]

Hey folks, sorry about the issues here. We're working on an immediate fix. You can continue to use Agent Mode with the auto model in the meantime. I'll provide updates as they come in.

Thank you.

Question: will you guys support Opus 4 soon?

[szgupta]

This should now be resolved on the latest version v0.2025.06.18.08.11.stable_03!

[szgupta]

@albinocordeiro-moz we might support it in the future, but there aren't any immediate plans. Feel free to open a new feature request for it if you'd like!