# 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: 2026-10-17 · HTML version: https://duelpilot.com/compare/duelpilot-vs-fibr

## At a glance

Duelpilot and Fibr AI side by side. Each cell links to its source.

|  | Duelpilot | Fibr AI |
|---|---|---|
| MCP server or agent API | Yes — Remote MCP server with 48 tools; OAuth for claude.ai and ChatGPT, bearer token elsewhere. [source](https://duelpilot.com/agents.md) | Unknown — No MCP server or public API mentioned. [source](https://fibr.ai) |
| Your own agent designs variants | Yes — Your agent designs 2–4 variants per idea, each with a preview and a device check. [source](https://duelpilot.com/agents.md) | Unknown — Fibr's own AI generates variants; no route for a customer's agent documented. [source](https://fibr.ai/experimentation) |
| 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. [source](https://duelpilot.com/index.md) | Unknown — Not documented for external agents; in the platform, variants are approved with one click and winners can be auto-promoted. [source](https://fibr.ai/experimentation) |
| Visual tests on any website | Yes — One script tag; works with React/Next.js, Vue, Astro, SPAs and strict CSP. [source](https://duelpilot.com/index.md) | Yes — Fibr script on the page. [source](https://fibr.ai/experimentation) |
| Server-side / code experiments | Yes — Code plan only: your agent builds the arms in your repo behind Duelpilot flags. [source](https://duelpilot.com/agents.md) | Unknown — Not mentioned. [source](https://fibr.ai) |
| Sequential (peek-safe) statistics | Yes — mSPRT: always-valid p-values, safe to check daily. [source](https://duelpilot.com/index.md) | Unknown — Bayesian, Fisher's exact or Z-test with adaptive traffic routing; sequential not stated. [source](https://fibr.ai/experimentation) |
| Charges for AI usage / credits | No — The AI runs in your own agent's subscription. [source](https://duelpilot.com/pricing.md) | Unknown — Not mentioned. [source](https://fibr.ai/pricing) |
| Free plan | No — No free plan; your first test is free on every plan, Starter from €9/month. [source](https://duelpilot.com/pricing.md) | Unknown — No free plan found. [source](https://fibr.ai/pricing) |
| Pricing model | flat per site | by traffic (visitors or users) |

## 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.

[source](https://duelpilot.com/pricing.md)

### 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."

[source](https://fibr.ai/pricing) · [source](https://fibr.ai)

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](https://fibr.ai)

### 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](https://duelpilot.com/#how)

## Try Duelpilot with your own agent

Give your agent one line: [set up Duelpilot for my site using /agents.md](https://duelpilot.com/agents.md). It opens a workspace, installs and verifies the script, and drafts the first test; you approve what goes live. Or [see pricing](https://duelpilot.com/#pricing).

**[Start for €0](https://duelpilot.com/login) · [Give it to your agent](https://duelpilot.com/#start)** (€0 today · plan starts after your first test)

## FAQ

### 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

- [Fibr AI](https://fibr.ai) (checked 2026-10-17)
- [Fibr AI Experimentation](https://fibr.ai/experimentation) (checked 2026-10-17)
- [Fibr Ai Pricing](https://fibr.ai/pricing) (checked 2026-10-17)
- [Duelpilot instructions for AI agents](https://duelpilot.com/agents.md) (checked 2026-10-17)
- [Duelpilot overview](https://duelpilot.com/index.md) (checked 2026-10-17)
- [Duelpilot pricing](https://duelpilot.com/pricing.md) (checked 2026-10-17)

## Related

- [Duelpilot vs Coframe](https://duelpilot.com/compare/duelpilot-vs-coframe)
- [Duelpilot vs Humblytics](https://duelpilot.com/compare/duelpilot-vs-humblytics)
- [Duelpilot vs pagent](https://duelpilot.com/compare/duelpilot-vs-pagent)
- [Duelpilot vs Tailor](https://duelpilot.com/compare/duelpilot-vs-tailor)
- [Best Fibr AI alternatives](https://duelpilot.com/alternatives/fibr-alternatives)
- [Agentic A/B testing explained](https://duelpilot.com/agentic-ab-testing)
- [All comparisons](https://duelpilot.com/compare)