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What are the most common reasons why custom GPT file search retrievals fail, and how can I fix our uploaded document structure

ChatGPTgpt-61 query11/1/2026
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Fan-out diagram

The searches the AI actually ran for this prompt.

SEED QUERY
What are the most common reasons why custom GPT file search retrievals fail, and how can I fix our uploaded document structure
1 real search · 1 real-search pass
OpenAI GPTs knowledge file uploads retrieval chunking document structure supported file types official documentationGoogle ↗
OBSERVEDOther / navigational

Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.

Query classes

Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.

ChatGPT real searches (1)
Short factOther / navigational100%ComparisonConsequenceReasonDefinitionInstructionYes / no

Classes come from the query-classifier (a local Laya model). 1 of 1 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.

Searches and sources

ChatGPT1 real searches · gpt-6
OpenAI GPTs knowledge file uploads retrieval chunking document structure supported file types official documentation Google ↗
  1. Creating and editing GPTs · help.openai.com
  2. Optimizing file uploads in ChatGPT Enterprise · help.openai.com
  3. File search · developers.openai.com
  4. Retrieval · developers.openai.com

Queries

1 queries · click a column to sort
Query / typeSearchIntentQuery classRouting formatClusterFreq ↓Weight
OpenAI GPTs knowledge file uploads retrieval chunking document structure supported file types official documentation
OBSERVED
Google ↗
AI Mode ↗
—Other / navigational——1x
of 1