Gemini 3 Flash bug injects HTML tags, breaking text-to-speech pipelines

An early bug report from developers finds that Gemini 3 Flash Preview occasionally outputs raw HTML in responses, causing downstream failures in voice applications.

Developers working with Google's Gemini 3 Flash Preview have encountered a bug where the model occasionally injects HTML tags into its text output, as @the_ai_scope reported. The issue is particularly disruptive for text-to-speech applications, where the raw HTML is read aloud or causes parsing failures.

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