Backplain vs Hebbia: what's actually different.
Hebbia's Matrix is a deep-research platform for finance and legal teams running document-heavy due diligence. Backplain sits next to it: the same prompt across up to 10 frontier models, side by side, behind a patent-pending AI Firewall — for one flat $129/seat/mo.
| Hebbia | Backplain Business | |
|---|---|---|
| Per seat / month | ~$250–$1,250+ (annualized; reported $3,000–$15,000+/seat/yr — per AI Catalog & SimplifyAI, 2026) | $129 — flat, listed |
| Annual cost (10 seats) | ~$30,000–$150,000+ (sales-quoted; not publicly listed) | $15,480 |
| Minimum commitment | Annual enterprise contract, sales-assisted | 10 seats — monthly or annual |
| Model coverage | Matrix orchestrates frontier models for document workflows — vendor-curated | 47 models across 9 providers |
| Multi-model comparison | Single Matrix output per workflow | Up to 10 models side by side in one prompt |
| AI Firewall | — | Yes (patent-pending) — PII redaction before any model sees the prompt |
| Custom PII filtering | — | Yes — at the prompt boundary, before any model sees data |
| Prompt-level audit logs | Workflow-level | Every prompt, every session, from seat one |
| Hosting flexibility | Hebbia-hosted SaaS | SaaS → BYO cloud → bare metal |
| Compliance posture | SOC 2 Type I & II; enterprise security program — no public HIPAA, FedRAMP, or CMMC posture listed | SOC 2 Type II in progress (target Q3 2026); HIPAA BAA available on Enterprise; NIST 800-53 / 800-171 (CMMC L2 baseline) controls mapped; FedRAMP pursuing — not yet listed on the Marketplace |
| Best fit | Funds and law firms running deep document due diligence at the very high end | Teams that want vendor-agnostic comparison and a hard PII boundary at one flat seat price |
Hebbia owns a real seat at the table for one specific shape of work: $25T+ AUM funds and top-tier law firms running deep document analysis — 200 earnings calls, 10,000 contracts, an entire data room — where Matrix is purpose-built to outperform a generic chat interface. If that's your daily workflow, Hebbia is the right tool and this page isn't trying to talk you out of it.
Backplain is a different shape of product. The core workflow is the one we offer everywhere else on this site: take a single prompt and run it across up to 10 models simultaneously — GPT-5.x, Claude Sonnet/Opus, Gemini 2.5, Llama 4, Mistral, and others — then compare the answers in one view. For finance and legal teams already on Hebbia, that turns Backplain into a second-opinion engine on the work that doesn't belong in a Matrix run: a memo, a clause interpretation, a market read, a "does the model agree with my analyst?" gut-check. Cheaper to keep open all day than a Hebbia seat, and broader across vendors.
The other half is the AI Firewall. Every prompt that leaves Backplain passes through a patent-pending software-layer firewall with custom PII redaction before any model sees it — useful when the team is pasting in a counterparty name, a deal code, or a witness identifier and you don't want it leaving your perimeter in the clear. Combined with prompt-level audit logs from seat one and a flat $129/seat/mo with no token meter, Backplain fits cleanly alongside Hebbia for the same regulated teams that already trust it for deep research.
Pricing source: Hebbia does not publish seat pricing. The ~$3,000/seat/year floor is reported by AI Catalog, aicatalog.app; SimplifyAI reports list pricing of $15,000/year for Matrix, simplifyaitools.com (2026). Annualized to monthly figures shown above.