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Developer Tools · head to head

Helix vs Silent Eight

Helix logo

Helix

Developer Tools

Post-modern modal text editor for the terminal, written in Rust

From
Free
Free plan
Yes
Full reviewWebsite
Silent Eight logo

Silent Eight

Cybersecurity

AI adjudication of sanctions screening and AML alerts

From
On request
Free plan
No
Full reviewWebsite

The short version

  • Only Helix has a free tier, so it costs nothing to try first.
  • Each has a real cost: Helix no official GUI application yet, so it requires comfort with terminal workflows.; Silent Eight automated disposition has to clear model risk governance and a regulator, and the shadow running period before auto-close is permitted can consume most of the first year of the contract.
  • They diverge on capability: Helix covers Multiple Selections, Silent Eight covers Alert adjudication.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Helix and Silent Eight actually diverge.

Attributes where Helix and Silent Eight differ
AttributeHelixSilent Eight
Starting priceFreeOn request
Pricing modelopen-sourcequote
Free tierYesNo
Platformslinux, mac, windowsWeb, Linux
CategoryDeveloper ToolsCybersecurity

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Helix

  • Multiple Selections
  • Tree-sitter Syntax Trees
  • Built-in LSP Support
  • Fuzzy File Finder
  • Project-wide Search

Only in Silent Eight

  • Alert adjudication
  • Narrative generation
  • Name screening automation
  • Quality assurance
  • Shadow mode
  • Model transparency reporting

What people use each for

The jobs each tool is most often brought in to do.

Helix

  • Editing code over SSH or in tmux sessionsnot Silent Eight
  • Working with syntax-aware selection and navigationnot Silent Eight
  • Getting IDE-like completion and diagnostics without plugin setupnot Silent Eight
  • Lightweight, low-resource code editing on laptopsnot Silent Eight

Silent Eight

  • A bank whose level one screening team spends most of its time closing obvious false name matchesnot Helix
  • A payments institution with alert volumes growing faster than it can recruit and train analystsnot Helix
  • A compliance function asked by a regulator to demonstrate consistency of alert decisions across offshore teamsnot Helix
  • An institution that has just tightened screening thresholds after an enforcement action and cannot staff the resulting alert increasenot Helix

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Helix

  • No official GUI application yet, so it requires comfort with terminal workflows.
  • Plugin ecosystem is far smaller than Vim's or Neovim's, limiting customization.
  • Keybindings differ from both Vim and Kakoune, adding a learning curve for users of either.
  • Configuration is more limited than Neovim's Lua-based extensibility.

Silent Eight

  • Automated disposition has to clear model risk governance and a regulator, and the shadow running period before auto-close is permitted can consume most of the first year of the contract.
  • It does not improve detection, so an institution with a poorly tuned monitoring system automates the handling of bad alerts rather than fixing why they exist.
  • Pricing is tied to alert volume, which means efficiency gains elsewhere that reduce alerts also reduce the vendor bill in a way sales teams structure minimums against.
  • The headcount saving is only realised if the institution actually reduces the analyst pool, and many banks redeploy rather than cut, leaving the business case unrealised on paper.
  • As a mid-sized private vendor serving tier one banks, concentration risk cuts both ways; the loss of one large client materially affects the company, and buyers should ask about financial stability during diligence.

Pricing, plan by plan

Helix

Free
  • FreeFree
    • Full editor, no paid tiers

Silent Eight

On request
  • Iris$undefined/year
    • Priced by alert volume adjudicated
    • Deploys against existing screening and monitoring systems
    • Shadow mode evaluation period

Which should you pick?

Choose Helix if

  • You need multiple selections.
  • You want to start without paying.
  • You work on linux, mac, windows.
  • You also want tree-sitter syntax trees.
Helix review

Choose Silent Eight if

  • You need alert adjudication.
  • You work on Web, Linux.
  • You also want narrative generation.
Silent Eight review

Questions people ask

Is Helix or Silent Eight better?
Neither clearly leads. Helix starts at Free and Silent Eight at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Helix or Silent Eight?
Helix has a free tier; the other does not. Paid plans start at Free for Helix and On request for Silent Eight.
Does Helix or Silent Eight run on more platforms?
Helix runs on linux, mac, windows. Silent Eight runs on Web, Linux.
Can I use Helix for free?
Yes. Helix has a free tier, so you can try it without paying. Silent Eight starts at On request.
What is Helix best used for?
Helix is most often used for editing code over ssh or in tmux sessions, working with syntax-aware selection and navigation, getting ide-like completion and diagnostics without plugin setup, lightweight, low-resource code editing on laptops. Of those, editing code over ssh or in tmux sessions and working with syntax-aware selection and navigation are not what Silent Eight is typically brought in for.
What can Helix do that Silent Eight cannot?
Helix covers Multiple Selections, Tree-sitter Syntax Trees, Built-in LSP Support, Fuzzy File Finder. Silent Eight covers Alert adjudication, Narrative generation, Name screening automation, Quality assurance.

Answered from the vendors’ own pages

Helix: Is Helix free to use?

Yes, Helix is free and open source, licensed under the Mozilla Public License 2.0 (MPL-2.0), with no paid tiers or subscriptions.

Source
Silent Eight: Does Silent Eight replace our screening system?

No. It consumes alerts from your existing screening and monitoring systems and decides them. The detection layer stays where it is.

Helix: How do I install Helix?

Install via your operating system's package manager, or download pre-built binaries from GitHub Releases; the nightly version requires building from source.

Source
Silent Eight: Will a regulator accept AI closing alerts?

It depends on your jurisdiction and your model governance evidence. Banks typically run extended shadow mode first and phase auto-closure by alert type.

Helix: Does Helix support plugins?

Not yet. Helix currently has no plugin system, though the project intends to add one eventually; it instead ships with built-in LSP and tree-sitter support out of the box.

Source
Silent Eight: Where is the company based?

Singapore, with offices in New York, London and Warsaw.

Helix: How do I configure Helix?

Helix ships with sane modern defaults requiring much less config-file fiddling than Vim, though settings can still be customized in a config.toml file.

Source
Helix: Where can I get help or support?

Support is community-driven via GitHub for code and issues, the Matrix chat for discussion, and OpenCollective for funding ongoing development.

Source
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