# Duelpilot vs LaunchDarkly

> Feature management and release platform with experimentation, guarded rollouts and AI configs, for engineering teams. Duelpilot is A/B testing run by your own AI agent over MCP, with a person approving every launch. Both can be used by an AI agent over MCP. The biggest difference is who launches: in LaunchDarkly an agent can start tests itself, in Duelpilot a person approves (or an owner's autopilot policy, within guardrails). LaunchDarkly is priced by usage; Duelpilot is flat per site, without AI credits.

Last reviewed: 2026-10-17 · HTML version: https://duelpilot.com/compare/duelpilot-vs-launchdarkly

## At a glance

Duelpilot and LaunchDarkly side by side. Each cell links to its source.

|  | Duelpilot | LaunchDarkly |
|---|---|---|
| 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) | Yes — Hosted MCP at mcp.launchdarkly.com with OAuth. [source](https://launchdarkly.com/docs/home/getting-started/mcp-hosted) |
| 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) | Yes — create-flag, create-experiment, update-experiment. [source](https://launchdarkly.com/docs/home/getting-started/mcp-hosted) |
| 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) | Yes — Tools such as toggle-flag, update-rollout and start-experiment-iteration exist; where an environment requires approval, the agent can only file an approval request for a reviewer. [source](https://launchdarkly.com/docs/home/getting-started/mcp-hosted) |
| 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) | No — No visual editor for website tests found. [source](https://launchdarkly.com/pricing/) |
| 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) | Yes — Feature flags are the core product. [source](https://launchdarkly.com/pricing/) |
| Sequential (peek-safe) statistics | Yes — mSPRT: always-valid p-values, safe to check daily. [source](https://duelpilot.com/index.md) | Yes — Sequential testing available with the frequentist method. [source](https://launchdarkly.com/docs/home/experimentation/analyze) |
| Charges for AI usage / credits | No — The AI runs in your own agent's subscription. [source](https://duelpilot.com/pricing.md) | Partly — AI runs (LLM tracking/evals): 5K/month included, then $5 per additional 1K runs. [source](https://launchdarkly.com/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) | Yes — Developer plan. [source](https://launchdarkly.com/pricing/) |
| Pricing model | flat per site | by usage |

## 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)

### LaunchDarkly

*Pricing: by usage*

Developer: $0/mo (100K experimentation MAU, 1 project); Foundation: $10 per service connection/mo and $8.33 per 1K client-side MAU/mo; Enterprise: custom; Guardian: add-on.

[source](https://launchdarkly.com/pricing/)

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 LaunchDarkly does well

- Mature feature flags, targeting and guarded rollouts with automatic rollback (launchdarkly.com/pricing).
- Hosted MCP server with around 170 tools that respects approval workflows (launchdarkly.com/docs).
- Frequentist or Bayesian analysis, sequential testing and CUPED (launchdarkly.com/docs).

## 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 LaunchDarkly if…

Choose LaunchDarkly if you need enterprise-grade feature management, progressive and guarded rollouts, and experiments on features your engineers ship.

[LaunchDarkly website](https://launchdarkly.com)

### Choose Duelpilot if…

Choose Duelpilot if what you want to test is the website marketing owns, without an SDK, run by your own AI agent at a flat price 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. [Try your first test free](https://duelpilot.com/login) or [see pricing](https://duelpilot.com/#pricing).

## FAQ

### Is LaunchDarkly an A/B testing tool for marketers?

It is a feature-management platform with experimentation for engineering teams; we found no visual editor for website tests. Duelpilot is built for website tests on any site.

### Can an agent ship a flag in LaunchDarkly?

Its MCP has tools to toggle flags and change rollouts; in environments with approvals enabled (an Enterprise feature) the agent can only file a request. In Duelpilot no agent can launch or ship, on any plan.

### Can Duelpilot do feature flags?

Only for A/B tests, on the Code plan: your own agent builds the variants behind Duelpilot flags in your repo. For general feature management LaunchDarkly is the better tool.

## Sources

- [LaunchDarkly hosted MCP server](https://launchdarkly.com/docs/home/getting-started/mcp-hosted) (checked 2026-10-17)
- [Pricing | LaunchDarkly](https://launchdarkly.com/pricing/) (checked 2026-10-17)
- [Analyzing experiments | LaunchDarkly](https://launchdarkly.com/docs/home/experimentation/analyze) (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 Amplitude Experiment](https://duelpilot.com/compare/duelpilot-vs-amplitude-experiment)
- [Duelpilot vs Eppo (Datadog Experiments)](https://duelpilot.com/compare/duelpilot-vs-eppo)
- [Duelpilot vs GrowthBook](https://duelpilot.com/compare/duelpilot-vs-growthbook)
- [Duelpilot vs PostHog Experiments](https://duelpilot.com/compare/duelpilot-vs-posthog)
- [Best LaunchDarkly alternatives](https://duelpilot.com/alternatives/launchdarkly-alternatives)
- [Agentic A/B testing explained](https://duelpilot.com/agentic-ab-testing)
- [All comparisons](https://duelpilot.com/compare)