European Luminance alternative for
confidential legal AI.
Contract review, M&A due diligence and document analytics, sealed inside Intel TDX, controlled from France, priced in the open. From $20/month, no enterprise-only gating.
Credit where credit is due. Luminance has a mature M&A due-diligence workflow, deep firm relationships across the UK and a longstanding reputation in the legal-tech market. This page is not an attempt to dismiss any of that. It is for firms who already know Luminance and want to evaluate a confidential, agentic, RGPD-native substitute on the dimensions that actually matter to a partner running a procurement decision today.
Why firms reconsider
Four frictions UK and EU firms hit when evaluating Luminance.
Pricing-on-request is not pricing
Luminance is enterprise-only. There is no published price list, no self-serve plan, no public solo or small-firm tier. Mid-market firms that ask "what does this cost" are routed into a sales cycle before the question gets a number. For partners running a budget conversation, that opacity is a real friction, even when the underlying product is good.
Private SaaS is not hardware-sealed
Luminance markets a "private" deployment posture. That is process-based confidentiality: contracts, sub-processor lists, network isolation. It is not the same as Intel TDX, where AES-256 memory encryption keys are fused into the CPU at boot and the operator is cryptographically excluded from the data path. For firms that want technical evidence over commercial promises, that gap matters.
Analytics is not agentic
Luminance is strong at passive analytics, clustering documents, scoring deviations, surfacing anomalies. That is closer to a sophisticated database query than to a junior associate. VoltageGPU agents draft redlines, build deliverable memos, chain tools, and produce structured output ready for partner review. Different paradigm, different output.
Training-data uncertainty post-acquisition
Luminance has been through ownership changes. Sub-processor lists, training-data provenance and model-update governance can shift with corporate structure. Some firms are choosing alternatives where the controller chain, the model provenance and the deployment are stable and disclosed in one document.
Our answer
Four differences that change the procurement conversation.
European controller, French jurisdiction
VOLTAGE EI is registered in Solaize, France (SIREN 943 808 824). The legal entity, founders, bank accounts and operational team are all inside the EU. There is no US holding company, no offshore reseller, no acquisition pipeline complicating the data-protection chain.
Intel TDX with per-session attestation
Inference runs on Intel TDX-equipped GPUs we operate. The enclave keys are fused into the CPU at boot, the cloud operator is excluded from the trust domain, and every Pro and Enterprise session can produce an ECDSA-signed attestation report verifiable against Intel root of trust. Evidence, not marketing.
Agentic by design, not analytics-first
The Contract Review agent drafts redlines. The Due Diligence agent builds a memo. The Legal Research agent chains tools and citations. The output is the kind of work-product a partner can review, not a dashboard of clusters and scores.
Bring-your-own-agent (BYOA)
Pro and Enterprise customers can deploy a firm-trained model or LoRA adapter inside the same TDX enclave, isolated to a single tenant. That preserves the firm's playbook, terminology and house style, while still benefiting from hardware sealing.
Side-by-side
Luminance, Harvey, Spellbook, Legalfly and VoltageGPU.
Sources: vendor public pages, customer-facing security documentation and press coverage. Hardware-sealing comparison reflects publicly disclosed TEE attestation as of 2026.
Use cases
Where firms put VoltageGPU to work today.
M&A due diligence
Drop a virtual data room. The Due Diligence agent ingests PDFs, DOCX and scanned files (OCR), clusters by document type (commercial contracts, leases, IP assignments, employment, litigation), and surfaces deal-relevant clauses: change-of-control, MAC, restrictive covenants, assignment restrictions, exclusivity. Output is a redline-ready deliverable memo, not a dashboard.
NDA and contract triage at scale
Bulk NDA review against a firm playbook. The agent reads each NDA, scores against the playbook, drafts a redline DOCX and produces a one-page summary per contract. A partner reviews exceptions; volume cases pass through without manual touch.
Contract review against a firm playbook
Upload your playbook (markdown or PDF). The agent applies it against any inbound contract, supplier MSA, employment agreement, license, producing a redline plus a structured memo (deviations, missing clauses, risk score, suggested revisions). Pro and Enterprise plans accept custom playbooks as system-prompt extensions.
Knowledge-management Q&A
Index the firm's precedent library inside the enclave. Lawyers ask "do we have a template for change-of-control in a French SaaS supplier deal?" and the agent returns the closest precedents with citation and confidence. Partner approval workflows preserved.
Migration & integration
What ports cleanly. What is still partial.
iManage and NetDocuments
Pro and Enterprise plans support iManage and NetDocuments via managed connectors. Documents flow into the enclave, deliverables flow back into the DMS folder, version history is preserved. SSO via SAML / OIDC and SCIM provisioning are Enterprise-tier.
SharePoint and file watchers
SharePoint Online and on-prem file watchers are supported. Drop a contract into the watched folder, the agent picks it up, returns a redlined DOCX and a memo PDF into a sibling folder.
M&A due diligence at full Luminance maturity
Luminance has years of accumulated playbook depth and a mature data-room workflow. Our Due Diligence agent handles the same shape of work but is younger. Enterprise customers running comparative pilots typically find parity on standard categories (commercial, employment, IP, real-estate) with continued investment on niche categories.
Anomaly detection and clustering UX
Luminance has a mature visual interface for cluster exploration, deviation scoring and anomaly browsing. VoltageGPU emphasizes structured agentic output over visual exploration. The data is there in the API; the equivalent visual UX is on the 2026 roadmap.
We disclose partial-parity areas openly because firms running comparative pilots will find them anyway. Better to surface the trade-off in the procurement conversation than after the contract is signed.
Pricing
Published pricing. Solo to enterprise. No NDA to see a number.
Plus
Solo lawyer · Contract Analyst
Starter
500 analyses / mo
Pro
10 seats + OpenAI-compatible API
Enterprise
SSO, SCIM, R1-TEE, BYOA
Enterprise quotes above $5,000/month are available for 25+ seats, dedicated TDX capacity, BYOA deployments and custom DPA terms, and the starting number is published, not gated.
FAQ
Frequently asked questions.
Is my data used to train models?
No. Inputs to Pro and Enterprise sessions run inside Intel TDX enclaves where AES-256 memory encryption keys are fused into the CPU at boot. Prompts and uploads are not used for training, are not retained for fine-tuning, and are not visible to VoltageGPU operators, the keys do not exist outside the silicon. Each session can produce an ECDSA-signed attestation report verifiable against Intel root of trust.
Do you handle M&A due diligence?
Yes. The Due Diligence agent ingests virtual data rooms (PDF, DOCX, scanned with OCR), clusters by document type, surfaces deal-relevant clauses (change-of-control, MAC, restrictive covenants, assignment restrictions, exclusivity), and builds a redline-ready memo. We are honest about where parity with Luminance is partial, see the migration section above.
Will my Luminance playbook port over?
Most playbooks port with minor reformatting. Pro and Enterprise plans accept custom playbooks (markdown or PDF) as system-prompt extensions. Enterprise customers get a hands-on migration session, we will help you translate playbook structure, deviation logic and exception handling onto the equivalent agent configuration.
How is pricing different from Luminance?
Plus is $20/month for solo lawyers, published, self-serve, no NDA. Starter is $349/month for 500 analyses. Pro is $1,199/month for up to 10 seats with the OpenAI-compatible API. Enterprise starts at $3,499/month with SSO, SCIM, DeepSeek-V3.2-TEE reasoning and BYOA. All prices are public; Enterprise quotes are not gated behind a sales call to see a number.
Why does Intel TDX matter when both vendors are GDPR-compliant on paper?
RGPD Article 32 requires "appropriate technical and organizational measures" against unauthorized access. Hardware sealing, where memory encryption keys are fused into the CPU and the operator is cryptographically excluded from the data path, is the strongest available technical measure. It changes the compliance posture from "trust the operator's contracts" to "verify the silicon's attestation".
Does VoltageGPU integrate with iManage and NetDocuments?
Yes. Pro and Enterprise plans support iManage, NetDocuments, SharePoint Online and on-prem file watchers via the OpenAI-compatible API and managed connectors. SSO via SAML / OIDC and SCIM provisioning are Enterprise-tier features.
What about EU AI Act readiness?
We publish model cards for every TEE model, transparency notices on how outputs are produced, and per-session attestation reports as evidence of the technical posture. Because we are an EU controller, the EU AI Act applies directly to us, and we have aligned our compliance program to the 2026 enforcement timeline. See /eu-ai-act-compliance for the full mapping.
Can I run a pilot before committing?
Yes. Enterprise prospects can run a 30-day pilot on a specific workflow (NDA review, M&A data-room ingestion, KM Q&A) with weekly check-ins. Reach us via /trust to scope a pilot, including a comparative evaluation against your existing Luminance deployment if that is useful.
Run a comparative pilot.
Bring one workflow, NDA triage, an M&A data room, KM Q&A, and run it side-by-side with your existing tooling. Solo lawyers can start on Plus for $20/month.