Rachis

Pain map

What breaks in document AI

290 production incidents from public threads. Every quote links to its source. Pick a category and check it yourself.

Duplicate entities and aliases

Filters

8 of 8 quotes

  • “duplicated content crowds out other material in the rate-limited reduce step.”
    GitHub, graphrag · 25 September 2026 · open the thread
  • “FalkorDB's fulltext index (RediSearch) splits Korean on whitespace only”
    GitHub, graphiti · 8 September 2026 · open the thread
  • “Entity nodes with the *exact same name* (same `group_id`, identical string) are not being merged by dedup, resulting in duplicate nodes accumulating over time.”
    GitHub, graphiti · 5 August 2026 · in production · open the thread
  • “Differences in capitalization, spacing, or language may create separate nodes for the same entity, for example: System Admin system admin SystemAdmin 系统管理员”
    GitHub, LightRAG · 3 August 2026 · open the thread
  • “For production environments with large datasets (costly to rebuild), this is a critical bug”
    GitHub, cognee · 28 March 2026 · in production · open the thread
  • Hit this one too? We are building for it. Join the waitlist.

  • “I spent so much time messing with fuzzy matching libraries and NERs for various entity resolution tasks”
    Hacker News · 24 March 2026 · open the thread
  • “With ~300+ episodes across multiple knowledge groups, resolution calls hit `Output length exceeded max tokens 16384` consistently”
    GitHub, graphiti · 26 February 2026 · open the thread
  • “Duplicates are categorized as new relationships temporally replacing the older one.”
    GitHub, graphiti · 10 December 2025 · open the thread
  • Hit this one too? We are building for it. Join the waitlist.

Method

We collected 448 public posts published after 1 November 2025 in which a builder describes document AI failing. Each link was re-opened on 8 November 2026. We kept the 290 where the quote is on the page, the author describes an incident and not an opinion, and has no tie to a vendor. Quotes are verbatim and trimmed after 420 characters. The grouping is ours. A complaint is not a measurement.