Subject: Critical OCR Performance Regression: 2.5 Flash vs 3.1 Flash-Lite
Body: I am reporting a critical performance regression in the Gemini API. My production workflow, which has been reliably using ‘Gemini 2.5 Flash’, has broken down after the transition to ‘Gemini 3.1 Flash-Lite’.
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Context: I have been successfully using ‘Gemini 2.5 Flash’ for OCR tasks (CAPTCHA recognition). The accuracy was excellent.
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Issue: Since the update to ‘3.1 Flash-Lite’, the model is consistently producing incorrect results (hallucinations), making the API unusable for my application.
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Evidence:
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Attached: Screenshots of my dashboard confirming the usage of ‘Gemini 2.5 Flash’.
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Attached: 3 sample images that ‘2.5 Flash’ recognized perfectly but ‘3.1 Flash-Lite’ fails on.
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Demand:
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Please investigate the performance difference between the 2.5 and 3.1 versions for OCR tasks.
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I require an immediate solution to restore the performance level of ‘Gemini 2.5 Flash’ in the current environment.
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Please escalate this to the engineering team responsible for model performance evaluation.
