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OpenAI API users report persistent Cloudflare 520 errors

By PulseAugur Editorial · [1 sources] ·

Users are encountering persistent 520 Cloudflare errors when attempting to use OpenAI's API, specifically with the "Sign in with ChatGPT" feature. These errors, which indicate a problem with the origin web server returning an invalid response, began occurring recently and are affecting multiple integrations, including custom agents and the Pi coding agent. Despite attempts to troubleshoot and report the issue on GitHub, users are seeking further assistance and a more direct channel to OpenAI support. AI

IMPACT Disruptions to API access can hinder development and integration of AI-powered applications.

RANK_REASON User-reported infrastructure issue with a specific OpenAI API feature.

Read on r/OpenAI →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

OpenAI API users report persistent Cloudflare 520 errors

How we ranked this

Signal score
8 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
User-reported infrastructure issue with a specific OpenAI API feature.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
product, infra
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
Breaking (< 6h)
Fresh story with cross-source coverage still developing. Ranking may shift as more sources report.

Full methodology in our editorial standards.

COVERAGE [1]

  1. r/OpenAI TIER_2 English(EN) · /u/DistanceAlert5706 ·

    Does anyone having 520 Cloudflare errors on responses API

    <!-- SC_OFF --><div class="md"><p>I've swapped my agent to this new method OpenAI released on DevDay<br /> <a href="https://developers.openai.com/cookbook/articles/sign-in-with-chatgpt">https://developers.openai.com/cookbook/articles/sign-in-with-chatgpt</a></p> <p>It was working…

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