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Siper Flow
DATA SECURITY & TOKEN OPTIMIZATION

Mask PII before
it reaches the model.

Siper Flow is an LLM proxy that masks personal data — including Turkish IDs and addresses — at runtime, then cuts token costs with exact and semantic cache. Works with OpenAI, Azure, Anthropic, Gemini and Groq; only the base URL changes.

Runtime PII Masking (NER + regex)
Exact + Semantic Cache
Prompt Compression
BYOK & On-Premise
LIVE DEMO

See what happens to a request

NER catches context-dependent data such as addresses; regex catches fixed-format data such as TCKN. Repeat questions are answered from the semantic cache.

1 · NER + regex detection → masking
chat.openai.com
Hi, my new address is ADDRESS · NERBağdat Cd. No:45 Kadıköy/İstanbulADDRESS, my national ID is TCKN · regex12345678901TCKN, can you write a change-of-address petition?
NER: address · regex: TCKN → 2 fields masked
Sure, I'm drafting a change-of-address petition for [ADDRESS]...~1.8s · reached the provider masked
2 · Semantic cache HIT
chat.openai.com
How do I write a change-of-address petition? Can you give an example?
HIT — never reached the provider
Here is a sample change-of-address petition draft...~40ms · served from cache
CAPABILITIES

Data protection first. Savings on top.

Personal data is masked before it reaches any provider; the token savings come on top of that.

Runtime PII masking

NER and regex detect personal data in every request and mask it before it reaches the provider — Turkish IDs, card numbers and names included.

Two-layer cache

Exact cache for identical requests and semantic cache for similar ones, including Turkish questions. Repeat calls are answered in milliseconds without reaching the provider.

Prompt compression

Removes redundant tokens from user messages while leaving the system prompt untouched, so the same answer costs fewer tokens.

Savings dashboard

Real-time view of cache hits, masked fields and token savings per tenant.

BYOK & on-premise

Bring your own provider keys and run Flow inside your own infrastructure, so your data stays within your boundary.

Multi-provider

One endpoint for OpenAI, Azure, Anthropic, Gemini and Groq. Only the base URL changes in your application.

98.8%
PII detection accuracy
77%
Semantic cache accuracy (STSb-TR benchmark)
69.4%
Token savings
5
LLM providers supported

Bring Siper Flow into your infrastructure

Talk to our team about an on-premise deployment for your organization.