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Problems.

OpenAI fails to return valid structured output

LLM apps3 posts from 3 people2d active+00 posts in the last 7 days, 0 the 7 days before (fading)

Posts per day

Posts per day3 posts, Aug 28 to Sep 25

The posts behind it

3, newest first
PostDate
[BUG] Gemini 3 broke multi-turn function calling on the OpenAI-compatible path: thoughtSignature moved from functionCall to the Part object> [!WARNING] > Before submitting a PR, please make sure that: > - A maintainer has triaged this issue and applied the `ready` label > - This issue has no assignee > - No duplicate PR exists > > PRs not meeting these requirements may be automatically closed. ### Issues Policy...mlflow/mlflowanay-rfaiSep 92 weeks ago
...most straightforward ways of interacting with LLMs via http. To the point that they got stuck with this legacy thing now that they and many others keeps reasoning traces private on their servers, which actually hinders future adoption. If they had forced their function calling...Hacker News commentssigmoid10Aug 284 weeks ago
[Documentation]: PZERO OpenAILike example### Documentation Issue Description The OpenAILike page (https://developers.llamaindex.ai/python/framework-api-reference/llms/openai_like/) shows a generic hostname example. A named PZERO example would let people point LlamaIndex agents at prepaid inference without guessing...run-llama/llama_indexcursor[bot]Aug 284 weeks ago

Companies and products named

Company or productPosts naming it
OpenAI3
LlamaIndex1
PyPI1
Venice1
Gemini1
MLflow1
About this problem

Evidence

3 posts from 3 people in 3 places, about 2 a week over 13 days. Mostly on Hacker News comments, run-llama/llama_index, mlflow/mlflow. Tools named alongside: LlamaIndex, PyPI, Venice, Gemini.

Frustration Frustration 0 of 3· Seen on GitHub issues, Hacker News

How it was grouped

Posts that state a pain and match the "structured-output" rule about OpenAI. First post Aug 28, 2026, latest Sep 9, 2026. Corroborated: 3 or more posts from 2 or more people or places. Method

History

  • 2026-09-25 Corroboration: unverified to corroborated
  • 2026-09-25 Added: OpenAI fails to return valid structured output (2 posts)

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