Duelpilot
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Comparison · Agentic CRO

Duelpilot vs Fibr AI

An "agentic web experience platform" for AI personalization and experimentation, especially landing pages for ad traffic, for enterprise marketing and CRO teams. Duelpilot is A/B testing run by your own AI agent over MCP, with a person approving every launch. Fibr AI is priced by traffic (visitors or users); Duelpilot is flat per site, without AI credits.

Last reviewed Markdown version

At a glance

DuelpilotFibr AI
MCP server or agent API
Yes

Remote MCP server with 48 tools; OAuth for claude.ai and ChatGPT, bearer token elsewhere.

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Unknown

No MCP server or public API mentioned.

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Your own agent designs variants
Yes

Your agent designs 2–4 variants per idea, each with a preview and a device check.

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Unknown

Fibr's own AI generates variants; no route for a customer's agent documented.

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An agent can launch tests without a person
No

A person approves every launch; an owner can switch on an autopilot policy with guardrails, never an agent.

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Unknown

Not documented for external agents; in the platform, variants are approved with one click and winners can be auto-promoted.

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Visual tests on any website
Yes

One script tag; works with React/Next.js, Vue, Astro, SPAs and strict CSP.

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Yes

Fibr script on the page.

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Server-side / code experiments
Yes

Code plan only: your agent builds the arms in your repo behind Duelpilot flags.

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Unknown

Not mentioned.

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Sequential (peek-safe) statistics
Yes

mSPRT: always-valid p-values, safe to check daily.

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Unknown

Bayesian, Fisher's exact or Z-test with adaptive traffic routing; sequential not stated.

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Charges for AI usage / credits
No

The AI runs in your own agent's subscription.

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Unknown

Not mentioned.

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Free plan
No

No free plan; your first test is free on every plan, Starter from €9/month.

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Unknown

No free plan found.

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Pricing modelflat per siteby traffic (visitors or users)
Duelpilot and Fibr AI side by side. Each cell links to its source.

Pricing

Duelpilot

Pricing: flat per site

Starter €9/month (€7 billed yearly); Pro €49/month (€39 billed yearly); Team €149/month (€119 billed yearly, 5 sites); Code €199/month (€159 billed yearly, 5 sites); Enterprise on request. No free plan; the first test is free on every plan.

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Fibr AI

Pricing: by traffic (visitors or users)

Starter $239/month (1 website, up to 50K visitor sessions); Pro $479/month (up to 5 websites, 200K sessions); Enterprise starting at $999/month; billed annually. The homepage says "Plans start at $1,000 for low-traffic websites."

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Prices as published by each vendor on the date checked, excluding VAT. Duelpilot has no visitor meters and no AI credits: the AI runs in your own agent's subscription.

What Fibr AI does well

  • Built-in AI generates variants and can auto-promote winners (fibr.ai/experimentation).
  • Personalization by ad and by LLM traffic (fibr.ai/pricing).
  • Several statistical methods chosen per test (fibr.ai/experimentation).

What Duelpilot does well

  • Your own agent does the research, design, checks and monitoring over MCP (48 tools); no AI bill from Duelpilot.
  • A person approves every launch: no MCP tool can approve, launch, pick a winner or ship.
  • Always-valid sequential statistics (mSPRT) with Holm correction, sample-ratio-mismatch checks and guardrail metrics.
  • Every variant gets a preview link and a site check on phone, tablet and desktop before anyone can approve it.
  • Flat price per site, published, from €9/month, and your first test is free on every plan; no visitor meters.

Where Duelpilot falls short

  • You need an AI agent that speaks MCP; without one there is no visual editor to build variants by hand.
  • No heatmaps or session recordings: Duelpilot counts results and sends variants to your own analytics.
  • A young product (2026): fewer integrations and a shorter track record than established tools.

Which one should you choose?

Choose Fibr AI if…

Choose Fibr if you run large paid campaigns and want a vendor AI to personalize landing pages per ad, keyword or audience at scale.

Fibr AI website

Choose Duelpilot if…

Choose Duelpilot if you want your own agent to run classic site-wide A/B tests with sequential statistics, a person approving each launch, and a flat €49 per site.

How Duelpilot works

Try Duelpilot with your own agent

Give your agent one line: set up Duelpilot for my site using /agents.md. It opens a workspace, installs and verifies the script, and drafts the first test; you approve what goes live. Try your first test free or see pricing.

Questions

Does Fibr have an MCP server?

We found none (checked 17 Oct 2026); its agents run inside the Fibr platform. Duelpilot is run by your own agent over MCP.

What does Fibr cost?

Its pricing page lists Starter $239/month and Pro $479/month billed annually, while its homepage says plans start at $1,000; confirm with Fibr. Duelpilot is €9, €49, €149 or €199 per month flat, first test free.

Is Fibr an A/B testing tool or a personalization tool?

Both, with a focus on AI personalization of landing pages for ad traffic. Duelpilot focuses on controlled A/B tests.

Sources

Last reviewed 2026-10-17. Spot an error? Tell us.

  1. Fibr AI (checked 2026-10-17)
  2. Fibr AI Experimentation (checked 2026-10-17)
  3. Fibr Ai Pricing (checked 2026-10-17)
  4. Duelpilot instructions for AI agents (checked 2026-10-17)
  5. Duelpilot overview (checked 2026-10-17)
  6. Duelpilot pricing (checked 2026-10-17)