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OpenAI wrapper should warn on fallback wrapper #614

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#618
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OpenAI wrapper should warn on fallback wrapper#614
#618
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bugSomething isn't workingteam/llm-analytics

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@kcarnold
kcarnold
opened on May 21, 2026

We had code that was using openai.chat.completions.parse (notice, not .beta). This was silently hitting the fallback __getattr__ in the OpenAI wrappers (e.g.,

posthog-python/posthog/ai/openai/openai_async.py

Line 82 in b3ebea2

return getattr(self._original, name)
and similar patterns throughout that file). That meant that we were at best not logging those endpoints, and at worst crashing when we were trying to pass posthog_distinct_id etc. to it.

I'm not sure what the right behavior is, but the silent fallback bit us and led to crashes.

(Should I open a second bug for openai.chat.completions.parse not being wrapped?)

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  1. marandaneto
    added
    team/llm-analytics
    on May 21, 2026

  2. marandaneto commented on May 21, 2026

    @marandaneto
    marandaneto
    on May 21, 2026
    Member

    @PostHog/team-ai-observability

  3. marandaneto commented on May 22, 2026

    @marandaneto
    marandaneto
    on May 22, 2026
    Member

    #618

  4. marandaneto
    added
    bugSomething isn't working
    on May 22, 2026
  5. marandaneto
    closed this as completedin #618on May 23, 2026
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