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> We're actively collecting pure black and pure white images generated by Nano Banana Pro to improve multi-resolution watermark extraction.

Oh hey, neat. I mentioned this specific method of extracting SynthID a while back.[1]

Glad to see someone take it up.

[1]: https://news.ycombinator.com/item?id=47169146#47169767

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FWIW, I had Nano Banana create pure white/black images in February, and there was no recognizable watermark in them (all pixels really were #ffffff / #000000 IIRC).

Meta: your comment was marked [dead], like a few other constructive comments I saw in recent days. Not sure why.

I suspect they strip the SynthID for these specific cases to prevent exfiltration of the steganography.

I appreciate you pointing it out, but this account is banned. Thank you for vouching though!

I tried it with Nano Banana 2 through the API just now, and it was content filtering me on both white and black images.

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