User Warns Against 'gpt-5.2 auto/instant' in ChatGPT Due to Hallucinations

product#llm🏛️ Official|Analyzed: Jan 5, 2026 09:10
Published: Jan 5, 2026 06:18
1 min read
r/OpenAI

Analysis

This post highlights the potential for specific configurations or versions of language models to exhibit undesirable behaviors like hallucination, even if other versions are considered reliable. The user's experience suggests a need for more granular control and transparency regarding model versions and their associated performance characteristics within platforms like ChatGPT. This also raises questions about the consistency and reliability of AI assistants across different configurations.
Reference / Citation
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"It hallucinates, doubles down and gives plain wrong answers that sound credible, and gives gpt 5.2 thinking (extended) a bad name which is the goat in my opinion and my personal assistant for non-coding tasks."
R
r/OpenAIJan 5, 2026 06:18
* Cited for critical analysis under Article 32.