Ask HN: Codex CLI error reveals “GPT-5.4-ab-arm2” string | Hacker News
While using codex CLI gpt-5.3-codex model, I just had a stream disconnect with a specific error message. It looks like I was routed to an A/B test for a 5.4 branch:``` stream disconnected before completion: This user's access to gpt-5.4-ab-arm2-1020-1p-codexswic-ev3 has been temporarily limited for potentially suspicious activity related to cybersecurity. ```Anyone else seeing GPT 5.4 variants?
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