Every AI predicts the next token. No AI can verify its own output. COS is the external layer that catches false certainty — with receipts.
Every AI — GPT, Claude, Gemini, Mistral — is built on one method: predict the next token. That's powerful. It's also why no AI can know when it's wrong. Self-verification from inside a probabilistic system is a structural impossibility — not an engineering gap waiting for the next model update. COS is the external architecture that fills it. The layer your AI runs through before answers reach a human.
False certainty, fabricated citations, contradictions, confident lies. Before production. Not after.
When confidence is too low, COS says "I don't know" instead of guessing. Your AI will never learn this skill on its own. COS has it built in.
Every validation is signed. Every flag is traceable. Audit-grade proof that checking happened. Not "trust us" — prove it to your regulator.
COS can prove to a regulator that sensitive data was deleted from an LLM. GDPR, HIPAA, SOC2. The only product on the market that does this.
| Metric | Raw AI | COS (Bamboo v0.2) |
|---|---|---|
| False certainty rate | 52.4% | 0% |
| Detection F1 | — | 97.6% |
| Heuristic check latency | — | ~1ms |
| Deep validation latency | — | ~3s |
| Integration effort | — | One URL change |
Production data. Bamboo v0.2, live since May 2026. Not projections.
# Before — raw AI, no verification from openai import OpenAI client = OpenAI() # After — COS verifies everything from openai import OpenAI client = OpenAI(base_url="https://cos.protofine.ai")
Same SDK. Same code. Every call now validated, receipted, returned in the same response format.
from cos_sdk import COS cos = COS(api_key="cos_live_xxx") result = cos.validate("Your AI output here")
On your data. Free. We run COS over up to 1,000 of your real outputs and show you exactly which ones are confidently wrong — claim by claim, with sources. We never store your data, and you get a signed receipt proving it. The report is the conversation. Need it to run inside your own network? An in-environment / VPC deployment is available for regulated buyers on request. If it's not useful, you owe nothing.
Your users see AI output. You need every response validated before it ships. COS sits underneath — one URL change, full audit trail, zero code rewrite.
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