Generative AI vs Agentic AI in the Legal Sector

Artificial intelligence is no longer a promise: it is an everyday tool in law firms. But not all AI is the same. Understanding the difference between Generative AI and Agentic AI is now decisive for any legal professional seeking efficiency without sacrificing rigor.

What is Generative AI

Generative AI is the technology behind models that draft text, summarize documents or answer questions. In the legal context, it shines at:

Drafting briefs and clauses.
Summarizing rulings and lengthy documentation.
Answering specific questions in natural language.

Its limit is clear: it reacts to a prompt and then stops. It produces an answer, but it does not run a full process or make chained decisions. The professional still orchestrates every step.

What is Agentic AI

Agentic AI is a qualitative leap. Instead of merely answering, it plans, decides and acts on a goal, chaining multiple steps and using tools (legal research, evidence analysis, document management) autonomously and under supervision.

Applied to law, an agentic AI can:

Analyze all the evidence in a case and classify it.
Cross-reference facts with applicable case law.
Propose a litigation strategy and draft the corresponding documents.
Track deadlines and next actions.

This is not an isolated answer but a complete workflow that supports the lawyer throughout the proceeding.

Quick comparison

Dimension	Generative AI	Agentic AI
Nature	Reactive	Proactive and goal-oriented
Scope	A single task	End-to-end processes
Autonomy	Low	High (with human oversight)
Tool use	Limited	Integrates search, analysis and documents
Value for the firm	Occasional time savings	Transformation of the procedural workflow

Why Sententia is a reference in the legal sector

Sententia is built on Agentic AI, not on plain generative AI. That architectural decision is what sets us apart: we don't just deliver answers, we automate procedural workflows end to end.

Every case in Sententia has an assistant with persistent context that understands the facts, analyzes the evidence, connects case law and proposes next steps. The lawyer always keeps control and the final word, but stops wasting hours on mechanical tasks.

That is why firms across Spain trust Sententia as a reference in legal AI: because Agentic AI does not replace the lawyer, it empowers them.

Conclusion

Generative AI was the first step; Agentic AI is the present and future of the legal sector. The former answers, the latter executes. And in an environment where time and rigor are everything, that difference defines who leads.

Sententia is already in that future. Shall we take you there?

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