01
Before it leaves your hands
Encrypt your input
A medical scan, account history, message, or model request is sealed with your key.
SCAN••••TEXT••••VOICE••••
SEALEDclient-side key
0110110110110
CIFRASee the race live Intelligence without exposure
Compute on data
you never reveal
Cifra makes private AI practical with fully homomorphic encryption (FHE) — models compute directly on encrypted data, so your most sensitive inputs stay unreadable even while they are being used.
128-bit security policy
Open optimization race
Follow the private path
01Encrypted in✦02Private during compute✦03Encrypted out✦04Yours to unlock✦05Independently verified✦06Faster through competition✦
The private path
Your data stays locked.
Even while it works.
Think of computation without the handover. The intelligence travels through your data, without your data becoming visible.
02
While the work happens
Compute without opening it
The model operates on scrambled information. The useful structure remains; the private data does not appear.
01×01×01×01×01×01×01×01
FHEencrypted ops
03
When the answer returns
Unlock only the result
The response stays encrypted until it reaches the person who owns the key: you.
result.cifra7D 3A •• 91
Private answer
visible only to you
Why it matters
Privacy without giving up intelligence.
When data can stay encrypted during computation, the most sensitive parts of life no longer need to be the price of getting a useful answer.
patient_014ENCRYPTED
private diagnostic
raw scan sealedHealthcare that protects the patient
Analyze sensitive records and medical images without handing the raw data to the system doing the work.
See the opportunity risk_enginePRIVATE
Account•••• 4921
Finance without the exposure
Run risk, fraud, and compliance models while accounts and transactions remain confidential.
See the opportunity personal_contextSEALED
Private AI
memorymessagesvoice context stays yoursPersonal AI that stays personal
Give intelligence useful context without surrendering the messages, memories, and history behind it.
See the opportunityThe Cifra breakthrough
Private computation should not feel impossibly slow.
Cifra turns performance into an open race. Miners search for faster encrypted circuits; validators independently rebuild and test every improvement.
Faster by competitionMany approaches compete at once.
Private by constructionSecurity is never traded for speed.
Proven independentlyEvery result must still be correct.
Encrypted execution labOPEN COMPETITION
cipher.inputA7 •• 31 ••
Circuit 7Atesting
Circuit 3Fleading
Circuit 9Ctesting
verifiedprivate result
What improves encrypted execution
What never changes correctness + security
Open participation
The future can be
intelligent and private.
Explore the technology, improve the circuits, or independently verify the next breakthrough.
See the race live