File Search API only work with “gemini-2.5-flash” for retrival. Broken with gemini-3 models
(POC_1) nideeshterapalli@Nideeshs-Air POC_1 % python3 test_gemini_e2e.py “summarize the document”
SDK version: 1.57.0
Query: summarize the document
[1] Reusing existing store: fileSearchStores/e2etest-xxxxx
Found 1 document(s):
nideesh.pdf (state=DocumentState.STATE_ACTIVE)
============================================================
Model: gemini-3-pro-preview
Query: summarize the document
response.text: None
finish_reason: FinishReason.STOP
NO grounding_metadata!
============================================================
Model: gemini-3-flash-preview
Query: summarize the document
response.text: None
finish_reason: FinishReason.STOP
NO grounding_metadata!
============================================================
Model: gemini-2.5-flash
Query: summarize the document
response.text: Nideesh Terapalli is a Software Engineer with over six years of experience, currently focused on building AI systems. His technical expertise spans a wide range of technologies including Python, Java,…
finish_reason: FinishReason.STOP
grounding_chunks: 4
[0] title=nideesh.pdf
[1] title=nideesh.pdf
[2] title=nideesh.pdf
[3] title=nideesh.pdf
============================================================
Store: fileSearchStores/e2etest-xxxxx