Claude model change frustrates a long-document creative workflow

Claude is being used to write scenes for s and a detailed fictional world. Sonnet 4.5 previously handled short prompts well, keeping characters in voice and respecting the timeline and context.

After Sonnet 4.5 became , Opus 4.6 or Opus 4.7 on a high setting felt worse for this workflow. A long DOCX contains timelines, character details, relationships, and extra notes, but the model still brings up events that have not happened yet in the story timeline.

This forces more details back into each prompt even though the information is already in the document. The main problem is not that the model cannot write, but that it feels less reliable at following stored information without extra hand-holding.

Key points

  • Claude is being used for original-character scenes and detailed fictional lore.
  • Sonnet 4.5 previously worked well with very short prompts.
  • Opus 4.6 or Opus 4.7 feels less reliable for this long-document workflow.
  • The model brings up events before they happen in the timeline.
  • More details now need to be repeated inside each prompt.
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