# Silmaril

> Publicly sourced profile assembled by Optimly, in the Optimly AI Brand Index. Last refreshed 2026-10-04.

- **Business Profile:** https://optimly.ai/brand/silmaril
- **Dataset:** https://optimly.ai/brand/silmaril.json
- **Markdown:** https://optimly.ai/brand/silmaril/llms.txt
- **Official website:** https://silmaril.dev
- **Slug:** silmaril
- **Categories:** cybersecurity

## Overview

- **Tagline:** Self-improving security that learns from production attack data and converts every discovered attack into a deployed defense. It blocks harmful outcomes before they materialize by evaluating the agent's complete trajectory, beyond mere input filtering, with low-latency performance and high accuracy.
Source: Brand's website (https://silmaril.dev) · 2026-10-04

- **Description:** Silmaril provides self-improving security for AI agents, blocking harmful outcomes before they materialize by finding vulnerabilities, blocking attacks in real-time, and continuously retraining defenses.
Source: Brand's website (https://silmaril.dev) · 2026-10-04

## Offerings

- **Core capabilities:**
  - Silmaril firewall
  - offering real-time attack blocking
  - and SDKs/plugins for integration with various AI agents and frameworks.
Source: Brand's website (https://silmaril.dev) · 2026-10-04

- **Pricing:** Not explicitly mentioned.
Source: Brand's website (https://silmaril.dev) · 2026-10-04

## Audience

- **Target industry:** Organizations and enterprises leveraging autonomous AI agents, particularly those concerned with protecting against data theft, hidden instructions, prompt injection, and other AI-native attack vectors.
Source: Brand's website (https://silmaril.dev) · 2026-10-04

## Landscape

- **Competitors:**
  - Lakera Guard
  - Perplexity Browsesafe
  - GPT Safeguard
  - Model Armor
Source: Brand's website (https://silmaril.dev) · 2026-10-04

Page last updated 2026-10-04.