CISO Tribune

Vendor comparison · 2 companies

Asymptote Labs vs Prompt Security

Asymptote Labs sells a runtime data platform for AI agents. Prompt Security offers protection for both employee use of AI tools and the apps an organization builds. CISO Tribune files both under AI model and agent security and Workforce AI usage security. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • Asymptote Labs
  • Prompt Security
Asymptote Labs vs Prompt Security: Products, Customers and Funding Compared
Asymptote LabsAsymptote Labs sells a runtime data platform for AI agents.asymptotelabs.aiPrompt SecurityPrompt Security offers protection for both employee use of AI tools and the apps an organization builds.prompt.security
What it sells
  • Agent Beacon[2][3][4]An open-source telemetry layer for capturing and normalizing agent activity across every environment.
  • Asymptote Platform[4]A managed runtime data platform for operating AI agents across the organization.
  • Asymptote Guard[7][9]Controls that steer behavior, block actions inline, revoke access, contain sessions, or terminate agents.
  • Prompt Fuzzer[4]An open source tool for AI vulnerability assessment.
Categories
Headquarters
New York City, United States[2]Not stated on its pages
Founded
Not stated on its pages2023[1]
Ownership and funding
Privately heldOwned by SentinelOne since 2025[3][7][8][10]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • October 20, 2026Asymptote Labs announced an oversubscribed $5.5 million seed round led by Tower Research Ventures.[12]
Not stated on its pages
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 10, 2026[10]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Not written yetNot written yet
Last verified
October 21, 2026September 27, 2026

Where they overlap

  • Asymptote Labs and Prompt Security are both filed under AI model and agent security and Workforce AI usage security.

Where they differ, field by field

  • Asymptote Labs's primary category is AI model and agent security; Prompt Security's is AI firewalls and guardrails.
  • Asymptote Labs is also filed under AI governance.
  • Asymptote Labs lists Agent Beacon, Asymptote Platform and Asymptote Guard. Prompt Security lists Prompt Fuzzer.
  • Asymptote Labs is headquartered in New York City, United States.
  • Prompt Security was founded in 2023.
  • Asymptote Labs is privately held. Prompt Security is owned by SentinelOne, since 2025.

What it sells: Asymptote Labs

What Agent Beacon does[2][3][4]
Agent Beacon captures activity across 20+ agent harnesses including Claude Code, Cursor, Codex, and OpenClaw. Agent Beacon forwards normalized telemetry to Splunk, Datadog, CrowdStrike, and other existing systems. Agent Beacon stores a portable local activity record in JSONL.
What Asymptote Platform does[4]
Asymptote Platform is a managed runtime data platform for operating AI agents across the organization. Asymptote Platform includes managed ingest, retention, search, and analytics. Asymptote Platform includes fleet-wide agent inventory and usage visibility.
What Asymptote Guard does[7][9]
Asymptote Guard steers behavior, blocks actions inline, revokes access, contains sessions, or terminates agents when needed. Asymptote Guard enforces model, budget, and session-level controls so teams can limit expensive usage, stop runaway workflows, and keep AI spend within policy.

What it sells: Prompt Security

What Prompt Fuzzer does[4]
Prompt Fuzzer is listed under AI Security Tools on the Prompt Security site. The site describes it as an open source tool for AI vulnerability assessment.

Questions about Asymptote Labs and Prompt Security

What do Asymptote Labs and Prompt Security sell?
Asymptote Labs sells Agent Beacon, Asymptote Platform and Asymptote Guard. Prompt Security sells Prompt Fuzzer.
Are Asymptote Labs and Prompt Security in the same category?
They share AI model and agent security and Workforce AI usage security. Asymptote Labs's primary category is AI model and agent security and Prompt Security's is AI firewalls and guardrails.
Where are Asymptote Labs and Prompt Security headquartered?
Asymptote Labs is headquartered in New York City, United States.
When were Asymptote Labs and Prompt Security founded?
Prompt Security was founded in 2023.
Who owns Asymptote Labs and Prompt Security?
Asymptote Labs is privately held. Prompt Security is owned by SentinelOne, since 2025.
What have Asymptote Labs and Prompt Security announced recently?
October 20, 2026: Asymptote Labs announced an oversubscribed $5.5 million seed round led by Tower Research Ventures.

About Asymptote Labs

Asymptote Labs sells a runtime data platform for AI agents. Asymptote gives teams one place to understand agent activity, investigate behavior, enforce controls, and analyze usage across tools and environments. Asymptote provides enterprise security and engineering teams a unified AI telemetry layer to see what agents are doing, govern how they operate, and continuously improve them over time.[3]

Asymptote says agents are spreading across tools and teams faster than organizations can track them. Asymptote says agents can access data and take actions without enough real-time oversight or control. Asymptote says teams can't see which agents are effective, failing, or wasting spend.[3]

Beacon is the open-source part of the offering. Asymptote is powered by Beacon, an open-source telemetry layer for capturing and normalizing agent activity across every environment. Agent Beacon is the open-source telemetry foundation, and the Asymptote platform builds on it with the managed control enterprises need to govern agent activity at scale. Agent Beacon captures activity across 20+ agent harnesses including Claude Code, Cursor, Codex, and OpenClaw. Agent Beacon forwards normalized telemetry to Splunk, Datadog, CrowdStrike, and other existing systems. Agent Beacon stores a portable local activity record in JSONL. Beacon gives Security and IT teams local endpoint visibility into supported agent harnesses. Beacon normalizes captured activity into a stable endpoint event schema and writes JSONL for local inspection or customer-managed forwarding.[3][4][5]

Beacon is deployed to endpoints in several ways. Asymptote deploys Beacon across endpoints with Jamf, Fleet, and other MDM workflows. Beacon macOS deployment uses a signed and notarized package distributed through Jamf Pro, Fleet, or another MDM. On Linux, the Beacon collector runs as a systemd service. Beacon browser chat telemetry is limited to the Claude.ai and ChatGPT conversation streams captured by the optional Agent Beacon browser extension.[4][5][6][10]

Asymptote Platform is the managed layer. Asymptote Platform is a managed runtime data platform for operating AI agents across the organization. Asymptote Platform includes managed ingest, retention, search, and analytics. Asymptote Platform includes fleet-wide agent inventory and usage visibility. Asymptote captures prompts, tool calls, file edits, approvals, and runtime events. Asymptote inventories Claude Code, Codex, Cursor, and other agent harnesses. Asymptote normalizes activity into one consistent source of agent runtime data.[3][4]

Asymptote builds a complete inventory of agents and the environments they run in across an organization. Asymptote detects malicious and suspicious agent behavior in real time, with the full execution context needed to understand what happened. Asymptote surfaces threats like secret access, prompt injection, malicious tool use, suspicious commands, and data exfiltration across the complete agent session. Asymptote Guard steers behavior, blocks actions inline, revokes access, contains sessions, or terminates agents when needed. Asymptote adds visibility into the agent runtime, including the harness, prompt context, tool calls, resources accessed, and policy decisions behind each action.[1][7]

Asymptote correlates every action in an agent session so engineers can pinpoint failed commands, retries, tool errors, slow steps, and execution loops. Asymptote lets engineering teams understand which agents, models, and workflows developers rely on across the organization. Asymptote connects model spend to the teams, agents, users, and workflows that generated it. Asymptote adds runtime context, connecting AI spend to specific users, agents, repositories, sessions, and workflows. Asymptote Guard enforces model, budget, and session-level controls so teams can limit expensive usage, stop runaway workflows, and keep AI spend within policy.[8][9]

Asymptote can be self-hosted in AWS, Azure, or GCP for tighter control over infrastructure, networking, and data residency. Asymptote offers dedicated infrastructure for organizations that need tighter control over how agent data is stored and operated. Asymptote integrates with providers like Okta for secure access without additional passwords. Asymptote protects data with AES-256 for storage and backups and TLS 1.2+ for all data in transit. Asymptote enforces zero-day retention with providers such as OpenAI and Anthropic, ensuring customer data is not stored or used for training. Asymptote connects to the tools teams already use and extends with custom actions for workflows and systems unique to a business.[4][10][11]

Asymptote Labs on the record

Sources

Asymptote Labs full record

  1. [1]asymptotelabs.aiAsymptote Labs · asymptotelabs.ai · undated page, accessed October 21, 2026 · Tier A
  2. [2]Asymptote labs raises 5 5m seed roundAsymptote Labs · asymptotelabs.ai · published October 20, 2026 · Tier A
  3. [3]Asymptote: Real-time Visibility & Control for AI AgentsAsymptote Labs · undated page, accessed November 10, 2026 · Tier A
  4. [4]PricingAsymptote Labs · undated page, accessed November 10, 2026 · Tier A
  5. [5]Security & IT Rollout Guide - AsymptoteAsymptote Labs · undated page, accessed November 10, 2026 · Tier A
  6. [6]Linux Install - AsymptoteAsymptote Labs · undated page, accessed November 10, 2026 · Tier A
  7. [7]Asymptote For Security & ITAsymptote Labs · undated page, accessed November 10, 2026 · Tier A
  8. [8]Asymptote For EngineeringAsymptote Labs · undated page, accessed November 10, 2026 · Tier A
  9. [9]Asymptote For AI FinOpsAsymptote Labs · undated page, accessed November 10, 2026 · Tier A
  10. [10]SecurityAsymptote Labs · undated page, accessed November 10, 2026 · Tier A
  11. [11]IntegrationsAsymptote Labs · undated page, accessed November 10, 2026 · Tier A
  12. [12]Asymptote Labs Raises $5.5M to Build Runtime Infrastructure for AI Agents | AsymptoteAsymptote Labs · published October 20, 2026 · Tier A

Prompt Security full record

  1. [1]Prompt security partners with f5 to secure genai applications with a firewall for ai 302131373Prompt Security via PR Newswire · prnewswire.com · published April 30, 2024 · Tier A
  2. [2]Securing ai promptSentinelOne · sentinelone.com · undated page, accessed September 27, 2026 · Tier A
  3. [3]Sentinelone completes acquisition of prompt securitySentinelOne via The Globe and Mail · theglobeandmail.com · published September 5, 2025 · Tier A
  4. [4]Prompt Security | From SentinelOnePrompt Security · undated page, accessed October 27, 2026 · Tier A
  5. [5]AI Security | AI Glossary | Prompt SecurityPrompt Security · undated page, accessed October 27, 2026 · Tier A
  6. [6]ClawSec: A Security Skill Suite for OpenClaw AgentsPrompt Security · undated page, accessed October 27, 2026 · Tier A
  7. [7]AI Security Startups Map — Agentic AI Vendors by CategoryPrompt Security · undated page, accessed October 27, 2026 · Tier A
  8. [8]About this Map & Methodology — AI Security Startups MapPrompt Security · undated page, accessed October 27, 2026 · Tier A
  9. [9]OneClaw DashboardPrompt Security · undated page, accessed November 10, 2026 · Tier A
  10. [10]Prompt Security Pros and Cons | User Likes & DislikesG2 · undated page, accessed November 10, 2026 · Tier C

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