Product · One platform. Five surfaces.

Every frontier model. One governed workspace.

Backplain unifies multi-model chat, prompt-time governance, admin controls, agentic research, and mobile capture — all behind the same AI Firewall and the same audit log.

The baseline

What ships in the box, on day one.

·47 models · 9 providers
·AI Firewall (mode set varies by tier)
·Audit log — every session, every prompt
·SSO / SAML · SCIM provisioning
·RAG file upload (PDF, JPEG, Word)
·iOS mobile app
·Admin console with policy controls
·No training on your data — by contract
·Flat-rate pricing — no token metering
Why Backplain

Built for the people whose job is to say no.

Most AI workspaces give your team a single model and a privacy policy. Backplain gives them every frontier model and a Firewall — the same one your CISO would have built if the budget had been there.

The AI Firewall sits between every user and every model. It detects sensitive entities at prompt time and acts on them according to your configured policy — Hard Block, User Warning, or Silent Reconstitute. The model never sees what you didn't authorize it to see. Every decision is logged.

That's the product. Everything else — multi-model chat, agents, mobile, admin — is built on top of the same governance layer.

How it compares

One workspace vs. a stack of point tools.

CapabilitySingle-model toolsBackplain
Frontier models in one workspace1 (per vendor)47 across 9 providers
Side-by-side model comparisonUp to 10 models per prompt
Prompt-time PII / PHI interceptionPolicy-onlyAI Firewall (3 modes)
Custom classifier patternsUnlimited (Business+)
Audit log across all modelsPer-toolSingle tenant log
SSO / SCIMEnterprise add-onStandard
Mobile (iOS) with camera + voiceLimitedAll 47 models
BAA availableSomeEnterprise / Sovereign
Sovereign / on-prem optionRareSan Diego Tier 3 DC or customer site

See the platform in your workspace in 14 days.

Start the free trial — no credit card, AI Firewall on by default — or book a guided walkthrough with the team that built it.