Lex-AR (lex-ar.com) is a conversational legal assistant, in open beta, that brings case law, PJN case files, deadline calculation, and filing drafts into one conversation. Argus Legal is built for production: the complete filing, generated from the case file, with certified case law and a second model that checks every citation, connected to five court portals.
Automatic calendar: reads portal updates, schedules hearings and summonses, and emails you.
Deadline calculator with court holidays and due-date alerts.
Stage
+1,500 active firms.
Open beta: its terms warn that features may change and service may be interrupted.
Price
From ARS 29,000/month.
Free plan (1 case file, no filings). Filings from the Abogado plan: ARS 38,300/month.
Verdict
A chat that drafts, or a flow that produces the filing
Argus Legal
For producing complete filings at volume: from case files on five portals, with certified case law and every citation checked.
Firms that produce filings every day and need the whole document.
Matters in MEV, SRT, SAC Córdoba, or Jujuy, in addition to PJN.
Citations checked by a second model before they reach the filing.
A product used by +1,500 firms, with human support and live trainings.
Lex-AR
A broad conversational assistant, with a statutes database, deadline calculation, and a free plan to start.
Trying a legal assistant for free on the free plan.
Querying INFOLEG statutes alongside case law.
Calculating procedural deadlines with court holidays.
Syncs only PJN for now.
It is in open beta.
Filings require a paid plan, from ARS 38,300/month.
“Lex-AR answers you and helps you draft. Argus delivers the complete filing, with checked case law and the case file connected.”
Frequently asked questions
Does Lex-AR draft filings like Argus?
Lex-AR drafts on request inside the conversation with its assistant, for example an answer to a complaint on a case file, and exports to .docx or .pdf on paid plans. Argus generates the complete procedural filing from the case file, with case law cited and in the firm's style, through a staged review flow.
Which one has more case law?
By reported volume, Lex-AR: more than 895,000 rulings and summaries and more than 418,000 statutes. Argus works with more than 260,000 certified SAIJ and Supreme Court rulings and uses a second model to check that each cited ruling supports the filing's position.
Which portals does each connect to?
Lex-AR works with PJN today, with SCBA and JUSCABA in development. Argus Connect syncs PJN, MEV · SCBA, SRT, SAC Córdoba, and SIGJ Jujuy, and drafts the next filing from that case file.
Is Lex-AR free?
It has a free plan with limited queries and one tracked case file. Filing generation and export are on the paid plans: Abogado (ARS 38,300/month), Pro (ARS 76,600), and Estudio (ARS 153,200). Argus starts at ARS 29,000/month. Prices as published on October 2, 2026.
Does Lex-AR detect made-up citations?
It offers to detect invented citations in the opposing party's filings. Argus applies verification to its own filing: it only cites certified rulings, linked to the source and confirmed by a second model.
Can I use both?
Yes. A conversational assistant can serve for quick questions, and Argus for producing the complete filing from the case file.
Sources
Lex-AR facts were checked on 10/2/2026 against its public pages. If something changed, email soporte@arguslegal.ai and we will fix it.