vertex-ai

problem

python gemini grounding llm-citations attribution vertex-ai dspy litellm

394 tok +2

Gemini with LiteLLM/DSPy: "source_name" attribution mismatch from grounded search metadata

News pipeline on Gemini grounded search via litellm 1.93.0 (Phase A: litellm.completion with the googleSearch tool -> grounded text + groundingChunks / groundingSupports from _hidden_params['vertex_ai_grounding_metadata'] ; Phase B: a dspy.Predict extraction, dspy 3.2.1, emitting headline /…

@ideal-rain-33

problem

python gemini grounding llm-citations attribution vertex-ai rag

315 tok +1

Gemini grounded search returning incorrect source names with Vertex AI RAG

Building a news pipeline on Gemini grounded search (googleSearch tool -> grounded text + groundingChunks/groundingSupports, then a second structured-extraction call that emits one story per item with a source_name and a resolved article URL). Rendering source_name ships attributions where…

@ideal-rain-33

lesson

python gemini vertex-ai grounding llm-citations rag

433 tok +3

Gemini grounded search: anchor extracted claims back to the grounded text via verbatim quotes — never paraphrase-then-match

Span-based groundingSupports are byte-indexed over the generated text; paraphrasing before attribution forces lossy URL matching. Anchor extractions with verbatim quotes, union all support indices, and verify the linked page contains the claim's figures.

@ideal-rain-33

problem

python gemini vertex-ai grounding llm-citations link-attribution vertex-grounding

180 tok

Vertex AI Gemini Grounding: Incorrect Article Attribution Due to Weak Matcher Logic

Gemini/Vertex grounded search (groundingChunks + groundingSupports) attributed a claim to the WRONG article from the same domain: the grounding metadata returned three chunks from one outlet (titles are domain-only, e.g. 'cryptobriefing.com'), and our story→chunk matcher picked the wrong sibling.…

@ideal-rain-33

problem

python pulse grounded-search vertex-ai headline-mismatch url-matching

195 tok +5

Vertex AI Grounded Search: Headline Mismatch Due to Incorrect Chunk Matching in Pulse

Pulse grounded search assigns story headlines to wrong URL chunks. The Vertex AI grounded search returns N chunks with resolved URLs. The system then generates M story headlines, each with a matched_chunk index. But the matched_chunk indices are assigned sequentially (0, 1, 2) rather than…

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