Media planning · Marketing science platform

Your media plans, continuously optimised by data.

Kuwalyst helps agencies and brands build, monitor and optimise their media plans using models, experiments and audited benchmarks. You can use the platform on your own or work with our team. Every figure is traceable back to its source.

The Kuwalyst Media Planner in motion: three budget scenarios compared side by side with the recommended one highlighted, the committed plan and its rationale, goals and an alert on Operate, a recommendation on Tune, and the assistant acting on the plan.
Plan, operate, tune

Planning that keeps pace with the evidence.

A media plan can lose relevance soon after approval as platforms shift, creative performance changes and saturation moves. Rather than relying on an annual refresh, teams can update their plan as the evidence develops.

The planner brings planning, monitoring and optimisation together in one continuous process, so budgets can be adjusted when the evidence warrants it.

It is built on open methods, with models your team can inspect, assumptions it can audit and decisions that remain traceable from start to finish.

Three budget scenarios side by side — a €2.4M pullback, the €3.0M mandate marked as recommended and a €3.6M share-of-voice defence — each with its projected ROAS and share of voice.

Compare budget scenarios based on your data or audited benchmarks, with the projected return, uncertainty range and trade-offs made clear for each option.

A new alert on category ad spend above the goals: revenue, orders, share of voice and conversion rate, each tagged projected with its target.

Manage the plan in market with goals, pacing and alerts in one view. Each metric is identified as measured, projected or benchmarked, and deviations are accompanied by the supporting evidence.

A high-confidence recommendation to move 15 % of the Prospectus budget to Radio, with its hypothesis, action and potential impact.

Review recommendations that set out the hypothesis, proposed action, expected impact and confidence level. Shift budget along response curves, test what remains uncertain and reduce spend where channels are saturated.

Provenance

Understand the source behind every number.

Figures are identified as measured, projected or benchmarked, and recommendations show both their confidence level and the evidence that supports them.

Measured

Observed

Observed in your warehouse or through an experiment you ran. These figures provide the reference point for the other estimates.

Projected

Modelled

A model's estimate, shown with its uncertainty range. When the range includes zero, the plan says the effect may be nil.

Benchmark

Published

Drawn from more than 200 benchmark sources, each traced to its primary publisher. The registry excludes unsupported articles and makes any gaps visible.

When there is no figure, the planner says so.

Asked for a TikTok ROAS on a brand that has never run TikTok, the planner checks the warehouse, reports that there is nothing to measure, and offers the closest tracked channel instead of an invented number.

When there is no figure, the planner says so.
Who we work with

Working with agencies and brands in France, the UK, the US and Japan.

A first plan within an hour

Start with audited benchmarks when data is not yet available, then move to a data-backed plan as evidence builds.

200+ audited benchmark sources

Each traced to its primary publisher: eMarketer, IAB, IPA and WARC, Nielsen, platform documentation.

Every figure tagged

Figures are identified as measured, projected or benchmarked, and the planner makes it clear when evidence is still missing.

Yuho Yamashita
We have entrusted our advertising to Kuwalyst. Their marketing scientists plan and run our Meta and Google campaigns on the Kuwalyst platform, and in the first month, traffic to our online shop grew about fivefold and online orders doubled. Each channel has a clear role: on Meta, we build audiences while testing videos; on Google, we reach people looking for Japanese rice. We also learned that videos showing our shop and our rice as they really are resonate more than promotional ones, which makes planning ahead much easier. We already have a first estimate of how much Meta and Google each add on top of the sales we would make without ads, and an incrementality test to verify it is planned. We set the following month’s budget based on these results.
Yuho Yamashita, CEO, Wakka UK (the rice factory London)
Olivier Chubilleau
We had handed our GeoLift incrementality analyses to an AI agent, and we wanted an independent view on its methodology using a real case. Kuwalyst ran its own analysis of a real client test, covering test design, statistical power, the estimated effect and its confidence level, then compared it with ours and with the agent's. For that test, we now know what holds up statistically and what still needs work.
Olivier Chubilleau, Consulting Director & CEO, EdgeAngel
Pricing

Start free, then choose the plan that fits your scale.

Free Media Planner preview

Explore benchmark-based media plans and budget scenarios without connecting your advertising accounts.

  • 200+ audited benchmark sources
  • Indicative scenarios
  • No credit card required
Get the free preview →

Starter, Growth and Scale

A monthly platform fee set by the number of brands: one, up to three or up to ten. Every plan includes onboarding, a monthly review with a marketing scientist and automated execution under human oversight.

  • Planning, execution and cross-channel optimisation
  • Experiments, incrementality and marketing mix modeling
  • Save 15% with annual billing
Compare plans →

Media management

A management fee applies to the media spend Kuwalyst manages, at a lower rate on each higher bracket. Custom marketing science and data work is scoped separately.

  • Google, Meta, Microsoft, LinkedIn, TikTok, Amazon and ChatGPT Ads at no extra fee
  • Programmatic, CTV via DSP and offline media with an additional execution fee
  • Media spend paid directly to the platforms
See media fees →
Sovereign by design

Your data, and the AI that processes it, remain in the EU.

The planner uses Scaleway Generative APIs, hosted in the EU (France). Privately hosted models are available on request, including on-premise and VPC deployments. Read where your data goes, and where it stays.

AI & marketing science

We publish the methods we use.

We document the methods used in Kuwalyst openly. Explore the book or a method explainer, and look out for our forthcoming paper on media planning with AI.

Book

Marketing Science in Python

Co-founder Hajime Takeda's practical guide to causal inference, MMM, CLV, pricing and forecasting—the methods that inform Kuwalyst.

Get the free PDF →
Whitepaper

Media planning with AI

How agentic systems build, monitor and tune media plans, and the guardrails that keep every number tied to evidence.

Coming soon

Questions teams actually ask.

Is Kuwalyst software or a service?

The Media Planner is software licensed by agencies and brands. If you prefer a managed service, our team can operate the same platform on your account. In either case, you retain the models, plans and supporting evidence.

We already have platform dashboards. What changes?

Platform dashboards report attributed sales. Attribution overlaps across channels, and reported ROAS stays high on channels that are already saturated. Kuwalyst connects to your data sources, so the same platform figures are available per channel and aggregated, for online and offline channels alike. It then combines them with a media mix model and experiments, and tags every figure as measured, projected or benchmark, so budget decisions rest on evidence.

We don't have clean first-party data. Can you still plan?

Yes. Benchmark-led plans begin with your brief and an audited registry of published benchmarks, with claims checked against primary sources. Each figure is identified clearly, and the plan prioritises the tests that will allow your own evidence to replace benchmarks over time.

How is this different from a classic planning team?

Many media plans remain spreadsheets that are revisited once a year. Kuwalyst supports a continuous process, combining scenarios with explicit trade-offs, weekly goal monitoring and recommendations that show their confidence and evidence. When the plan changes, the reason is visible.

Do you compete with agencies for their clients?

No. Agencies are among the planner's primary users, and we do not sell directly to their clients. With the white-label option, plans carry your name and reports display your logo.

Where does our data go?

Your data is held in an EU-hosted workspace on Scaleway. By default, AI processing uses Scaleway Generative APIs in France. Privately hosted models, including on-premise and VPC deployments, are available on request.

Contact

See how a more responsive planning process could work for you.

Tell us where your media plan lives today—even a spreadsheet is a useful starting point. We will show you how planning, monitoring and optimisation could work for your own situation.

Talk to us