500 investment bankers review AI outputs and find none ready for client delivery

THE DECODER / 4/26/2026

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Key Points

  • A benchmark evaluated leading AI models (including GPT-5.4 and Claude Opus 4.6) on common junior investment-banker tasks.
  • After reviewing the outputs, none of the AI responses were judged ready for direct client delivery due to inaccuracies or insufficient quality.
  • Even so, over half of the bankers said they would still use AI output as a starting point for their work.
  • The results suggest current AI performance may be useful for drafting and ideation, but still falls short of client-ready standards in finance workflows.

Laptop on a small desk between stacks of colorful financial documents with tables and diagrams.

A new benchmark puts top models like GPT-5.4 and Claude Opus 4.6 to work on the kinds of tasks junior investment bankers handle every day. Not a single AI output was rated ready to send to a client; the results are too imprecise or flat-out wrong. Still, more than half of the bankers said they'd use the output as a starting point.

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