---
title: "Discussion on \"Three bugs made Claude worse, and the checks never saw it\" | Hashnode"
description: "Discussion on \"Three bugs made Claude worse, and the checks never saw it\". Claude never went down. Between August and early September 2025, three infrastructure bugs degraded its answers, and Anthropic's evaluations did not catch them."
url: "https://hashnode.com/posts/three-bugs-made-claude-worse-and-the-checks-never-saw-it/6ad6a25f2d1959a4126534bd"
---

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# [Three bugs made Claude worse, and the checks never saw it](https://trustboundarystudio.hashnode.dev/three-bugs-made-claude-worse-and-the-checks-never-saw-it?utm_source=hashnode&utm_medium=feed)

Claude never went down. Between August and early September 2025, three infrastructure bugs degraded its answers, and Anthropic's evaluations did not catch them.

Oct 19 · 10 min read · trustboundarystudio.hashnode.dev  
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-   [#anthropic](https://hashnode.com/tag/anthropic)
-   [#claude](https://hashnode.com/tag/claude)
-   [#post-mortem](https://hashnode.com/tag/post-mortem)
-   [#load-balancing](https://hashnode.com/tag/load-balancing)
-   [#tpu](https://hashnode.com/tag/tpu)

## Written by

[Trust Boundary](https://hashnode.com/@trustboundarystudio)

@trustboundarystudio · Melbourne, Australia

  
[View profile](https://hashnode.com/@trustboundarystudio)

Infrastructure post-mortems. What actually broke?

Infrastructure post-mortems reconstructed from the primary record: regulator orders, court filings, vendor RCAs. Breaches, outages and architecture failures, one a week. trustboundarystudio.com

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