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Casetext vs Helios: Which is Better in 2026?

Choosing between Casetext and Helios comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.

Bottom line: Casetext is our overall pick for AI for legal workflows. Pick Helios if you need AI assistants.

··Methodology
Editor reviewed0 verified reviews comparedPricing checked Jul 2026

Short on time? Here's the quick answer

We've tested both tools. Here's who should pick what:

Casetext

AI-powered legal research that finds relevant authority faster

Best for you if:

  • • You need AI for legal features specifically
  • GPT-4 powered legal assistant acquired by Thomson Reuters for $650M, now integrated with Westlaw
  • CoCounsel analyzes up to 10,000 documents per project for e-discovery, due diligence, and contract review

Helios

AI-powered policy intelligence and advisory support

Best for you if:

  • • You need AI assistants features specifically
  • AI-native platform for policy intelligence and advisory.
  • Automates legislative tracking, regulatory analysis, and policy drafting.
At a Glance
CasetextCasetext
HeliosHelios
Starts at
Custom
Custom
Best For
AI for LegalAI Assistants
Rating
4.5/54.4/5
Free plan
No No

Choose Casetext or Helios?

Casetext

Choose Casetext if

AI-powered legal research that finds relevant authority faster

  • Legal AI platform
  • Good research
  • Active development
  • Your work is AI for legal-shaped, not AI assistants-shaped
Helios

Choose Helios if

AI-powered policy intelligence and advisory support

  • Reduces reliance on external consultants and point solutions.
  • Significantly improves efficiency for policy teams.
  • Provides fully cited and sourced policy documents.
  • Your work is AI assistants-shaped, not AI for legal-shaped
FeatureCasetextHelios
Pricing ModelPaidPaid
User Rating
4.5/5
201 reviews
4.4/5
63 reviews
Categories
AI for LegalAI Research
AI AssistantsAI Research

In-Depth Analysis

CasetextCasetext

AI-powered legal research that finds relevant authority faster

Strengths

  • +Legal AI platform
  • +Good research
  • +Active development
  • +Good features
  • +Time saving

Weaknesses

  • -Expensive
  • -Legal focus only
  • -Learning curve
  • -Thomson Reuters owned
  • -Support varies

Key features

Legal AI researchCoCounsel assistantDocument reviewBrief analysisDeposition prepContract analysis
Starts at Custom

HeliosHelios

AI-powered policy intelligence and advisory support

Strengths

  • +Reduces reliance on external consultants and point solutions.
  • +Significantly improves efficiency for policy teams.
  • +Provides fully cited and sourced policy documents.
  • +Operates 24/7, continuously learning organizational priorities.
  • +Remembers past work and internal context for consistent insights.

Weaknesses

  • -Specific pricing details are not publicly available.
  • -Requires an intelligence assessment to get started, indicating a potentially complex onboarding process.

Key features

AI-native policy intelligence platform (Proxi)Legislation trackingRegulatory shift analysisPolicy document drafting (Scribe)Team briefing capabilitiesAI-powered research aide with source tracing (Consult)
Starts at Custom

Pricing: Casetext vs Helios

PlanCasetextHelios
Tier 1
150
Solo
N/A
Tier 2
225
CoCounsel Core
N/A
Tier 3
500
Unlimited
N/A
Tier 4
428
Westlaw Precision
N/A

Pricing verified from each vendor's public pricing page. Compare in detail on Casetext pricing and Helios pricing.

Who Should Use What?

On a budget?

Both are paid. Compare plans on their websites.

Go with: Casetext

Want the highest-rated option?

Casetext: 4.5/5 (201 reviews). Helios: 4.4/5 (63 reviews).

Go with: Casetext

Value user reviews?

Casetext: 201 reviews (4.5/5). Helios: 63 reviews (4.4/5).

Go with: Casetext

3 Questions to Help You Decide

1

What's your budget?

Both are paid. Pricing won't help you decide here.

2

What's your use case?

Casetext is a AI for legal tool. Helios is in AI assistants. Pick the category that matches your needs.

3

How important are ratings?

Casetext is rated higher: 4.5/5 vs 4.4/5.

Key Takeaways

Casetext

  • Higher user rating: 4.5/5 vs 4.4/5
  • Larger review base (201 reviews)
  • Our pick for this comparison

Helios

  • Better fit for AI assistants

The Bottom Line

Casetext is our pick.

Frequently Asked Questions

Is Casetext or Helios better?

Casetext is rated in our evaluation. Both are paid.

What are Casetext and Helios used for?

Casetext: AI-powered legal research that finds relevant authority faster. Helios: AI-powered policy intelligence and advisory support.

What does Casetext cost vs Helios?

Casetext is a paid tool. Helios is a paid tool. Visit their websites for detailed pricing.

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