Running Gemini 2.5 Pro with grounded search sometimes returns empty response.text with finish_reason of STOP and no other reason. When I inspect the response dict it shows evidence of the search with some web meta information, but nothing else. Any ideas on what is going on? Here is my code: def …

This issue is still persistent, really unpredictable, sometimes 500 INTERNAL SERVER ERROR, sometimes empty content parts. I have implemented retry with exponential backoff and jitter but still gemini-2.5-pro “Modified by moderator” to use in production.

ChatVertexAI incompatible with pre-built ReAct agent when responses are blocked · Issue #886 · langchain-ai/langchain-google It seems this issue happens when Gemini API recieves any blocked or finished message with empty content. Although it is a problem they should solve, since it makes no sense t…

@Wing_zeng Does having a random prefix with each request reliably fix the issue for you?

I found this worked for me, thanks for rec

I also encountered the same issue these days. After testing, I found that setting the ‘thinking budget’ (Gemini 2.5 Pro) to 128 significantly reduces this from happening. However, the generated content is still occasionally incomplete (at least it’s not empty).

thanks man ! it was returning empty responses but now i am using Unique identifiers (timestamps, request IDs, session IDs) and now it is working perfectly , i think google is trying to block spam/similar request as well , once again it really helped. :grin:

so many failures. It is horrible to watch. I wonder whether AI can succeed.

There will most likely be some performance degradation, but that’s unavoidable. The 2.5 Pro API seems to be in a state of generating random stops right now, so the only thing I can do is try to minimize irrelevant output as much as possible.

Gemini 2.5 Pro with empty response.text

Gemini API

kh83 August 13, 2025, 4:30pm 108

Been running something for a while. Increasingly empty responses with no error. All the time today. Great model, but api is too unreliable atm, yet status page is green.

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Gemini 2.5 Pro with empty response.text

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