The ten eDiscovery platforms compared -- April 2026
Updated 21 April 2026 | Independent reference | Not legal advice
The post-2025 pricing reset changed the competitive landscape. aiR and EverlawAI are now included in base subscriptions. The differentiator has shifted from “does this platform have AI?” to “what kind of AI, how auditable, and how isolated?” Here is the vendor-neutral matrix.
Five procurement questions for 2026
- Is the relevance scorer a classical classifier or an LLM? Which LLM?
- Is the LLM hosted in a tenant-isolated environment, or shared?
- Can you export per-document reasoning traces for attorney QA?
- Does the vendor offer contractual zero-retention on prompts and outputs?
- Is the audit log (coding history, model version, prompt) exportable?
| Platform | AI Product | AI Type | Tenant Isolated | Trace Export | Zero-Retention | Pricing | Cost (indicative) | Buyer Focus |
|---|---|---|---|---|---|---|---|---|
| Relativity | aiR for Review / aiR for Privilege / aiR for Case Strategy | GenAI on CAL | Yes (RelativityOne cloud) | Partial (partner API) | Yes (contractual) | Per GB | ~$11-13/GB/mo (aiR included) | AmLaw 200, enterprise lit-support |
| Everlaw | EverlawAI Assistant / Deposition Analyzer / Writing Assistant | GenAI on CAL | Yes (single-tenant) | Limited | Yes | Per user | $250/mo base + $3-5k/user/yr | Mid-market, boutique litigation |
| DISCO | Cecilia AI | GenAI (timeline, narrative) | Yes (cloud-native) | No | Yes | Custom | Custom quote | Mid-market, in-house |
| Reveal | Reveal Ask / Brainspace | GenAI + concept clustering | Yes | Limited | Yes | Custom | Custom quote | AmLaw, enterprise |
| Nuix | Nuix Neo AI | GenAI + agentic workflows | Yes | Yes (audit log) | Yes | Per user + per GB hybrid | Custom enterprise quote | Government, large enterprise |
| Logikcull | AI Tagging | AI tagging (limited GenAI) | Yes | No | Yes | Per matter (flat fee) | $1,500-3,500/matter (small firm) | Solo/small/mid firm |
| Exterro | Exterro AI (legal hold focus) | AI tagging + hold automation | Yes | No | Yes | Custom | Custom quote | In-house legal ops |
| Casepoint | CasepointAI | GenAI scoring | Yes | No | Yes | Custom | Custom quote | Mid-market, government |
| Lighthouse | Lighthouse AI Hub | GenAI + agentic retrieval | Yes | Yes | Yes | Service bundle | Service + platform (custom) | AmLaw, large enterprise |
| Epiq / Consilio | Service AI (varies by engagement) | Service-led (platform pass-through) | Varies | Varies | Contractual | Service bundle | Service + platform pass-through | AmLaw, large in-house |
Indicative. Last verified April 2026. Confirm with vendor.
The competitive state of play
Relativity remains the dominant platform by market share in AmLaw 200 and the large lit-support vendor segment. The October 2025 pricing reset -- including aiR at no added charge -- was a strategic move to defend that position against Everlaw's growth in the mid-market. The result is that Relativity is now meaningfully more accessible for smaller firms, but the “RelativityOne only” limitation for aiR still excludes on-premises customers.
Everlaw gained significant share from 2022-2025 by offering a genuinely integrated platform -- deposition analysis, clustering, and drafting in one environment. Its pricing reset in early 2026 (matching Relativity by making AI features free) preserved competitive parity. Everlaw's per-user model is often better for active-matter firms; worse for large data-at-rest situations.
DISCO and Reveal are competing for the tier below Relativity and Everlaw. DISCO's Cecilia AI has matured but the platform has not matched the pricing aggression of the top two. Reveal Brainspace concept clustering is a genuine differentiator for complex multi-issue regulatory matters where conceptual navigation is more important than raw throughput.
Nuix occupies a distinct position: it is the preferred platform for government, law enforcement, and regulatory investigation use cases where chain-of-custody and audit-trail requirements are strictest. Nuix Neo's agentic investigation workflows are the most advanced in the market for structured evidence analysis.
Logikcull remains the first-mover in per-matter flat-fee pricing and the preferred option for small and solo firms handling individual commercial matters. Its AI capability is limited compared to the top tier, but for a $1,500-3,500 flat fee on a single matter, the comparison point is manual review, not Relativity.
Lighthouse is the standout among service-led providers for its AI Hub -- a curated multi-model environment with reasoning-trace export. For firms that want the Relativity platform but want independent AI validation layered on top, Lighthouse as a platform partner is a viable architecture.