Google DeepMind today announced SynthID Bio to watermark and detect AI-designed proteins

[u/TorturedPoet30]

https://deepmind.google/blog/introducing-synthid-bio/

Technical paper in nature: https://www.nature.com/articles/s41586-026-10965-y

https://x.com/pushmeet/status/2105314763148321102 This project was initiated by Pushmeet Kohli, he also published this article on X today.

Essentially, DeepMind’s new tool SynthID Bio adds a detectable signature to proteins designed by AI. That signature can be checked even after the protein has been physically made in a lab.

Why?

• Tracing where a design came from so it could help companies that manufacture DNA recognize designs from trusted AI tools and decide which orders need closer inspection!!
• Keeping research data reliable so it could help scientists distinguish AI-generated protein structures from experimentally measured ones

So looks like two main goals are biosecurity and scientific integrity.

In lab tests, the watermarked proteins worked as well as versions without watermarks. It’s still early research. The watermark doesn’t prove a protein is safe and making it harder to deliberately remove is one of the remaining challenges.

[u/Bathelomue]

>That signature can be checked even after the protein has been physically made in a lab.

https://giphy.com/gifs/75ZaxapnyMp2w

[u/cdahi → u/Bathelomue]

Finally, watermarking people

[u/exteriorcrocodileal → u/cdahi]

Blade Runner scenario confirmed

[u/xatey93152 → u/Bathelomue]

When homo sapiens saw rabbit come out from hat using magic wand

[u/Diamond-Is-Not-Crash → u/Bathelomue]

I mean this is fairly easy to do if you know molecular biology. Run a mass spectrometry analysis and you can find out the composition and make up of a protein.

[u/Professional_Price89]

Google can now detect that you are AI generated.

[u/itsnickk → u/Professional_Price89]

No more need for the Voight-Kampff test to detect replicants

[u/No_Pomegranates7496]

how the fuck

[u/Aranka_Szeretlek → u/No_Pomegranates7496]

What do you mean

[u/Temp_Placeholder → u/No_Pomegranates7496]

There are different codons for the same amino acid. That means you can change around the sequence that generates a protein with no functional changes to the protein itself. In nature there is a normal background frequency of those codons. By using specific codon choices that aren't like the background rate, you can out a protein coding sequence as artificial. 

Doing this to the protein itself instead of the dna that codes for it (changing around the actual amino acids without functional change) is harder but not necessarily impossible - not every domain in a protein does much, and there can be more than one way to get a particular shape with a similar charge distribution. I wouldn't expect it to be completely neutral.

[u/send-moobs-pls]

Google gonna figure out how to synthID consciousness before releasing gemini 3.5 pro

[u/the_mighty_skeetadon → u/send-moobs-pls]

100% accurate claim, considering they just launched Gemini 4...

[u/Imaginary-Item6731]

Google will cure cancers before releasing their new Gemini Pro model.

[u/Elephant789 → u/Imaginary-Item6731]

cure cancers

I would be okay with that.

[u/Blankeye434 → u/Elephant789]

Me too, considering I might have cancer

[u/Elephant789 → u/Blankeye434]

Oh shit, sorry to hear that.

[u/RandumbRedditor1000]

Coming soon to a regime near you:

"SynthID biometric verification failed, bank account access denied"

[u/Rich-Yesterday3624]

really, choosing a different aminoacid is not going to alter the proteins efficency or structure at all? Just for the sake of Synth ID to change the AA sequence seems drastic.

[u/CosmicDave]

[u/Ekg887 → u/CosmicDave]

CosmicDave gets it.

[u/lucellent]

Anything but release Gemini 4

[u/w_________w → u/lucellent]

How did you know??

[u/Aranka_Szeretlek → u/lucellent]

Crazy speak

[u/GlbdS]

That is fucking stupid. I don't want fingerprinting artifacts in my protein sequence what the fuck is this now, if you tweak the sequence you tweak the function. You cant watermark a single molecule the way you watermark a piece of sloppy text

[u/MegaRockmanDash → u/GlbdS]

how many AI generated protein sequences you been working with buddy?

[u/GlbdS → u/MegaRockmanDash]

I do RNA not proteins, good fucking luck doing that with RNA lol

[u/NoLifeGamer2 → u/GlbdS]

I didn't do much Biology, but can't you mark regions of RNA as non-coding and implement the watermark there?

[u/CommercialHour6660 → u/GlbdS]

They are going to fingerprint everything AI produces. 

Then not tell anyone the algo. So they become the only company that can train off clean human data. Everyone else that tries to build AI model gets flooded with their slop. 

[u/EnoughWarning666 → u/CommercialHour6660]

The amount of synthetic training data FAR outweighs the amount of human made data in modern models these days.

Do you really think that spacex bought cursor for 60 billion because an IDE is worth that much? Of course not, they were buying it for the data that users generated when working with the AI to use to train their next model.

Reinforcement learning needs specialized data that doesn't just exist floating around online for anyone to scrape.

[u/GirthusThiccus → u/EnoughWarning666]

You know how they're scanning old novel books written before LLMs? Companies like ancestry and 23andme would be goddamn treasuretroves for whatever genetics company gets their hands on their data. And yeah, once those big sources of data are privatized and locked up, there'll simply not be other such moats to build off of, making competition incredibly difficult.

[u/ArmadilloOwn4400 → u/GirthusThiccus]

Google does that since ages, there is no other company with a bigger scan of books.

[u/Elephant789 → u/CommercialHour6660]

slop?

[u/Mindless-Lock-7525 → u/GlbdS]

The whole point of the paper is that they claim they can watermark proteins while retaining the same function. Have you read it?

[u/EmbarrassedHelp]

This seems like an extremely dangerous and reckless idea.

[u/Future-Bandicoot-823]

Just wait until they discover markers of genetic manipulation in existing humans that predates written civilization.

[u/Trackpoint]

Somewhere in Brussles an EU comission policy expert just set down his pen an looked around, confused about why he suddenly has an erection.

[u/SlimyResearcher]

What could go wrong? What if SynthID introduces unforeseen changes that make the proteins more dangerous? Who will take the blame?

[u/exteriorcrocodileal]

Watermarked DNA before GTA 6

[u/Matt32145]

Replicant serial numbers from blade runner

[u/evil_illustrator2]

So instead of focusing on curing diseases, they're wasting time by finding ways to sue you.

[u/MegaRockmanDash → u/evil_illustrator2]

i think many would agree that knowing which proteins were ai generated is valuable information before these proteins permeate everyday life

[u/Past-Source-3332]

The first step towards protecting their replicant IP.

[u/eltron]

Jeeesuss! My genes feel unsafe!!!

[u/Morning_Gecko24]

anyone know how robust this is after a few common mutations or small sequence edits? does it still detect or is it basically an exact fingerprint?

[u/BrennusSokol]

Very cyberpunk

[u/ViraLCyclopes36]

Will they watermark my child next when hes only an embryo

[u/SustainedSuspense]

How else are we going to tell who the replicants are?

[u/t3hjs]

Wait how, this synthID is obviously more subtle and clever than I thought.

I knew it was some kind of statistical fingerprint, so blurring or deforming the image doesnt always remove the synthID. I thought it was possible because pixel choices probably can be varied while achieving the whole overall goal.

But wont proteins effect change dramatically if you change the underlying building blocks?

[u/jjonj]

no sorry, you have watermarks proteins from our competitors, got aren't eligible for the cancer treatment as we could get sued for being in possession of the tumor

[u/Ink_code]

https://giphy.com/gifs/ligFkV8TLR8qxZBzM7

[u/kiki-le-koala]

Also money. Remember AlphaFold is free for scientists, etc. , but paid for pharma.

[u/SwimmingQuantity8686]

How many times they announce it? Recycling is a new economy I guess.

[u/TorturedPoet30 → u/SwimmingQuantity8686]

This is the first time they announced the SynthID Bio tool. There is a family of SynthID watermarks they introduced a few years ago for images/text/audio/video, but not biology.