Codex Desktop on Windows hits 401 "Incorrect API key" despite ChatGPT sign-in
Just_Another_User80 · reddit · 2026-09-26
A ChatGPT Pro user reports Codex Desktop on Windows repeatedly failing with 401 Unauthorized: Incorrect API key provided: sk-svcac... even though auth mode is chatgpt, OPENAIAPIKEY in auth. is NULL, no API key exists in environment variables, no custom provider is configured, and re-login doesn't help. The error still references a nonexistent sk-svcac... credential, suggesting a server-side ChatGPT-to-Codex credential/session issue.
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