Phaistos · Beta v0.4

Private AI.
Computed on shapes,
read only by you.

An OpenAI-compatible cloud where the prompts, responses, and the model itself can be obfuscated under a key only you hold. Operator-blind by design — we compute on shapes; you read the meaning.

OpenAI-compatible API gguf · safetensors Streaming · function calling
Three tiers · one API · one price

Pick your level of trust.

The compute is identical. The only thing that changes is who holds the key that gives the tokens meaning.

Public

No key · no encoding

A stock model on stock weights. Plaintext in, plaintext out. Vanilla OpenAI clients work as-is — but anyone with the URL gets readable answers.

Model Public, unmodified
Key None
Wire Plaintext

Private

You encrypt before upload · operators inject the serving key

You upload ciphertext the server never decrypts. The serving side needs the key out-of-band, and the client integration is not the same as plain server-managed OpenAI hosting.

Model Client-encrypted before upload
Key Never seen by Phaistos
Wire Depends on your serving setup