User says Codex botched a cryptography task and replaced a Merkle tree with comparisons
chaumian · x · 2026-07-24
One user says Codex performs poorly on cryptography-heavy work and tends to generate very inefficient code.
In a simple tool they built with Claude, switching to Codex reportedly caused it to delete a crucial Merkle tree construction and replace it with thousands of comparisons.
Related event: Codex Struggles with Cryptography, Generates Inefficient Code(2 posts)→
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