Yes
Then Gemini 2.5 pro (the first one) came along and suddenly this was no longer the case
jorl17 on Hacker News
~250k tokens
In the thread “Everything around LLMs is still magical and wishful thinking”, replying to this comment
Helped: Gemini 2.5 Pro's ability to handle large context and solve complex bugs reliably.
Got in the way: Previous models hallucinated full poems and failed to summarize 250k token collections.
… Completely unreliable and nothing it said could be trusted. Then Gemini 2.5 pro (the first one) came along and suddenly this was no longer the case. Nothing hallucinated, incredible pattern finding within the poems, identification of different "poetic stages", and many other rather unbelievable things — at least to me. …