If you litigate in Argentina, Claude with a legal plugin helps you analyze, summarize, and draft, but setting up the environment (profiles, connectors) and checking every ruling it cites against the official source stay on you. Argus is a legal AI built for that job: it drafts the complete filing from the case file it brings in from eight court portals and grounds it in 350,000+ certified SAIJ, CSJN, JUBA, and PJN rulings, each linked to its source and checked by a second model. Claude for Legal is the open-source plugin suite Anthropic introduced in May 2026, aimed mainly at US practice; its Argentine adaptation, claude-for-legal-argentina, is a community project, not an Anthropic product.
Argentine litigation: from the case file to the complete procedural filing, with case law cited.
Anthropic's general assistant: conversation, document analysis, writing, and code. Claude for Legal adds practice-area plugins.
Argentine law
Every filing starts by choosing filing type, jurisdiction, and court, and learns the firm's style from your sample filings.
Anthropic's plugin targets US practice. The community adaptation adds profiles on the CCCN, LCT, LDC, LGS, and the national and Buenos Aires procedural codes.
Case law
+350,000 certified SAIJ, CSJN, JUBA, and PJN rulings inside the drafting flow, each citation linked to its source.
No built-in database. Optional community connectors query the SAIJ, CSJN, JUBA, and PJN sites from the chat; the README says to test each connector first and go back to the primary source when in doubt.
Citation checking
A second model confirms each ruling supports the position, not just that it exists.
According to Anthropic, its plugins attribute the source of every citation, and every output is a draft a lawyer reviews and verifies before relying on it.
Case file and portals
Argus Connect: PJN, MEV · SCBA, SRT, SAC Córdoba, SIGJ Jujuy, SISFE Santa Fe, IOL Mendoza, and EJE (City of Buenos Aires), with automatic updates and the filing starting from the case.
The Argentine adaptation lists optional connectors for the PJN lookup, Portal PJN updates with your login, and the EJE public lookup, running on a local server you install.
Drafting the filing
Complete filing (facts, law, cited case law, prayer for relief), with versions, changes you accept or reject, and export to Word or PDF.
Drafts whatever you ask. The Argentine adaptation includes templates for some consumer, damages, and family filings; you control structure and format.
General use
Limited to Argentine legal work.
Works for almost any task: ideas, summaries, languages, programming.
Limits and price
Monthly plan in pesos by number of filings (10, 30, or 60 per month, or custom), via Mercado Pago with no lock-in. Certified case law comes with the Profesional and Full options. Prices at /planes.
Pro: USD 20 a month (USD 17 billed annually), with more usage than Free and limits every 5 hours and every week. Max: USD 100. No plan is presented as unlimited.
Your documents
Encrypted at rest and in transit; not used to train models (Ley 25.326).
On personal plans, Anthropic uses your chats to improve Claude if you allow it in settings or if a conversation is flagged for safety review.
Verdict
An assistant you configure or a platform built to litigate
Argus Legal
For producing the Argentine court filing without building anything: certified, checked case law inside the flow, the case file brought in from the portals, and the firm's style.
Firms whose bottleneck is drafting complaints, answers, and appeals with case law cited.
SAIJ, CSJN, JUBA, and PJN citations checked by a second model and linked to the source.
Cases on PJN, MEV, SRT, SAC Córdoba, Jujuy, Santa Fe, Mendoza, or EJE (City of Buenos Aires), synced with no software to install.
Human support in Spanish and free live trainings.
Claude
An excellent general assistant for thinking, analyzing documents, and drafting that, with a legal plugin and connectors, adapts to Argentine practice if you have time to configure it and verify what it produces.
General questions, document analysis, and drafts of any kind.
Lawyers who want to build their own setup: practice-area profiles, their own templates, and connectors.
Work outside Argentine law or outside litigation.
No built-in Argentine case-law database: connectors to official sources are optional and community-made.
Anthropic states that every output of its plugins is a draft for the lawyer to review and verify.
The Pro and Max plans have usage limits every 5 hours and every week.
“Claude is a great general assistant. Argus is the platform for litigating in Argentina: the complete filing, with every citation linked to its source.”
Frequently asked questions
Is Claude with a legal plugin enough to litigate in Argentina?
It is enough to analyze, summarize, and draft, especially with the community's Argentine adaptation (claude-for-legal-argentina), which brings profiles based on the CCCN, LCT, LDC, LGS, and the national and Buenos Aires procedural codes. Installing and maintaining profiles and connectors, loading the case file, and checking every ruling against the official source stay on you. If that takes you hours, Argus handles it in one place: the case file from eight portals and the complete filing with 350,000+ certified SAIJ, CSJN, JUBA, and PJN rulings linked to the source.
I pay about USD 20 for Claude and use it without limits: does a legal AI that caps filings per month make sense?
Claude Pro costs USD 20 a month (USD 17 billed annually) and, according to Anthropic, has usage limits every 5 hours and every week; no Claude plan is presented as unlimited. Argus counts filings per month (packages of 10, 30, or 60, and custom plans) because each one is a complete filing with checked case law, not a message. If you already draft fast with Claude and checking citations is no burden, it may be enough; if your bottleneck is the filing with case law and keeping up with your cases, look at Argus. Prices at arguslegal.ai/planes.
What is Claude for Legal?
It is the set of legal-work tools Anthropic introduced on May 12, 2026: 12 practice-area plugins and more than 20 connectors to legal software, open source (Apache 2.0 license), for use in Claude Cowork or Claude Code. Its agents and connectors mainly target US practice, and its documentation states that every output is a draft for a lawyer to review and verify.
What is claude-for-legal-argentina?
It is an Argentine adaptation of Claude for Legal that Probanza-ar publishes on GitHub; it is not an Anthropic product. It brings practice-area profiles based on Argentine law, a deadline-computation skill, filing templates (consumer, damages, and family, among others), and optional connectors to official sources (SAIJ, CSJN, JUBA, PJN, and the EJE) that you install and run on your computer. As of October 31, 2026 it had 143 stars and 170 forks, and its last published change was from July 23, 2026. License: Apache 2.0 for Anthropic's code and its own license for its content.
If I use Claude, what do I still have to do myself?
Set up the environment (projects with the profiles and, if you want them, connectors), load each case's documents or query them with a connector, check every ruling and norm against the official source (the Argentine adaptation recommends it whenever there is a discrepancy), and give the text the filing's structure and format. In Argus the case file comes from the portals, the case law comes from a certified corpus with a link to the source, and the filing comes out complete; final review and the signature are still yours.
Can I use Claude and Argus together?
Yes. Claude for thinking through the case, summarizing public material, or general writing, and Argus for the filing that goes into the case file, with checked case law and the case synced from the portal.
What do Claude and Argus do with my documents?
On personal Claude plans, Anthropic uses your chats to improve the model if you allow it in settings, if a conversation is flagged for safety review, or if you join a testing program. Argus encrypts your documents and does not use them to train models, in line with Law 25.326.
I can't pay for Claude plus the Thomson Reuters assistant: how does an Argentine legal AI differ?
Thomson Reuters sells Westlaw in Argentina, with more than 1.5 million documents curated by La Ley (902,000 rulings, doctrine, norms, and 1,200 filing and contract templates) and an AI assistant that answers from that content, and CoCounsel Core, which works on your own documents. They publish no price, and they do not publish complete procedural-filing drafting or court-portal connections. Argus combines the complete filing, 350,000+ certified SAIJ, CSJN, JUBA, and PJN rulings, and eight portals in one plan in pesos. Details at arguslegal.ai/argus-vs-cocounsel.
Sources
Claude facts were checked on 10/31/2026 against its public pages. If something changed, email soporte@arguslegal.ai and we will fix it.
