ONE PLATFORM FOR EVERY RECOMMENDER

NSL sits between your product and the messy world of recommendation models. Understand your audience, test what works, see why recommendations happen and control what gets shown.

Train leading architectures on your own data, switch models or embedding providers without changing your integration, and safely promote better models when they prove themselves.

The control layer for recommendations

Train and compare different architectures, bring your own embeddings, inspect user interests and recommendation logic, then safely promote, roll back or override models without changing your application integration.

ReactSwiftAndroidNext.jsNode.jsFlutterShopifyWordPressWebflowVue.jsNuxtAngularSvelteAstroLaravelDjangoRuby on RailsKotlinUnityRokuContentfulWooCommerceExpo.NETGo
NeuronSearchLab
  • Collaborative
  • Content-based
  • Sequential
  • Graph
  • Generative
News · Top storiesStreaming · Home railMarketplace · Related itemsShort video · For youMusic · Up nextGrocery · Buy it againFashion · Complete the lookGames · Recommended
  • suppress
  • boost
  • exclude
  • suppress
  • pin
  • boost
  • exclude
  • editor's pickboost
  • over a day oldsuppress
  • already readexclude
  • new releasepin
  • licence endsexclude
  • in stockboost
  • margin under 8%suppress
  • seen it alreadysuppress
  • creator mutedexclude
  • on the playlistpin
  • skipped oftensuppress
  • on offerboost
  • out of stockexclude
  • in their sizeboost
  • sold outexclude
  • just launchedboost

Deployed across media, commerce, and publishing

  • Streaming
  • Marketplace
  • Publishing
  • Retail media
  • Music
  • Games
  • Classifieds
  • News
  • Podcasts
  • Grocery
  • Fashion
  • Learning

See it on your own site

A working preview, from the pages you already publish. How it works

We only read pages that are already public, and we follow your robots.txt.

The control layer

Understand, test, explain, control

The console plotting every indexed user in its embedding space, one point per person, with the communities showing as density rather than as labels.The console plotting every indexed user in its embedding space, one point per person, with the communities showing as density rather than as labels.

The control layer

NSL does not replace the recommender - it is what sits above it. Every leading architecture trained on your own data and compared on the same footing, the winner promoted only while it keeps winning, and one API in front of all of it that does not change when the model underneath does.

  • Understand

    A living map of your audience

    Users, content, interests and behavioural clusters in one space you can actually look at. The communities in your data are found rather than defined, so the groups you did not know to look for turn up beside the ones you did.

    The console plotting every indexed user in its embedding space, one point per person, with the communities showing as density rather than as labels.The console plotting every indexed user in its embedding space, one point per person, with the communities showing as density rather than as labels.
  • Interests that change over time

    Follow one person's interests as they move, and tell a settled taste apart from a single unusual session. Fragmented signals become one profile that keeps up - not an average of everything they have ever done.

    A user opened in the console: their current interests ranked by share, each with the evidence behind it and the decay weight that is ageing it.A user opened in the console: their current interests ranked by share, each with the evidence behind it and the decay weight that is ageing it.
  • Deep understanding of the content

    Multimodal embeddings - TwelveLabs' Marengo, OpenAI, or your own - let ranking read scenes, actions, dialogue, sound, objects and themes rather than titles and tags. A new item can be placed the day it is published, with no interaction history at all.

    An item opened in the catalogue, with the metadata, embedding model and source fields the ranking reads it by.An item opened in the catalogue, with the metadata, embedding model and source fields the ranking reads it by.
  • Test

    The best model for your data

    Collaborative, content-based, sequential, graph and generative recommenders, trained on your actual behaviour and evaluated the same way on the same split. Replayed over your history first, and scored towards your outcome - watch time, completion, retention, purchases - not a fixed list of generic signals.

    The console listing the recommenders trained on this account beside the platform base models, with the version of each that is serving.The console listing the recommenders trained on this account beside the platform base models, with the version of each that is serving.
  • Automated promotion and rollback

    A candidate only goes live when it beats the incumbent on the agreed metrics and stays inside your quality, diversity, latency and cost guardrails. Shadow first, then a canary on a slice of traffic, with automatic rollback if the live numbers move the wrong way.

    The A/B testing screen comparing ranking strategies, model variants and rule combinations against live traffic splits.The A/B testing screen comparing ranking strategies, model variants and rule combinations against live traffic splits.
  • Explain

    A reason attached to every result

    Any position decomposes into the interests, interactions, similarities and rules that produced it, with confidence attached. When a feed changes, see what changed it - and where the candidate models disagree about the same user.

    The explainability screen for a single item: the final score broken into the model similarity and each rule that moved it, with the pipeline trace beneath.The explainability screen for a single item: the final score broken into the model similarity and each rule that moved it, with the pipeline trace beneath.
  • Control

    The final say over what is shown

    Boost, suppress, exclude, pin, guarantee or quota content, and set how hard an editorial decision pushes against personalisation. Simulate the change against real traffic before it ships, so exposure across the catalogue is a decision rather than a side effect.

    The rules engine listing the boost, bury, filter, pin, cap and diversity rules in force, each with its scope, priority and switch.The rules engine listing the boost, bury, filter, pin, cap and diversity rules in force, each with its scope, priority and switch.

Multimodal · TwelveLabs Marengo

Read in sequence, not in stills

A thumbnail says what is in the shot. It cannot say what the shot is doing. Multimodal embeddings read a clip the way it plays - frame after frame, with sound and dialogue alongside - so an item is placed by what happens in it rather than by the one image chosen to represent it.

Order is part of the content

The same objects in a different order are a different clip. A reading taken over the run separates what is in an item from what happens in it.

Rankable before it is watched

Because relevance is judged from the item itself, a clip can be placed the day it is published - no views, no tags, no interaction history behind it.

Whose embeddings is your choice

Marengo covers video, audio, image, text and document. OpenAI, an open-weights model you host, or one your own team trained attach the same way.

Ranking that works on behalf of catalogues

Can your recommender do this?

Not a different recommender - the layer above whichever one you run.

CapabilityWith NSLOff-the-shelf engine

Content it can see

Scenes, dialogue, sound and objects read from the item itself, so a new one is rankable before it has a single view.

Model selection

Collaborative, content-based, sequential, graph and generative architectures trained on your behaviour and compared like for like, rather than one fixed model for every catalogue.

Safe releases

Shadow, then canary, then promotion - and automatic rollback the moment live performance drops.

Editorial control

Boost, suppress, pin or guarantee at request time, with the strength of the override set by you.

A traceable result

Every position decomposed into the interests, similarities and rules that produced it, with confidence attached and model disagreement shown.

Serving, not reporting

Built for the request path

Recommendations need to arrive while the experience is still happening. NSL is designed for low-latency serving, with behavioural signals continuously feeding back into what a user sees next.

One API can sit behind your homepage, feed, search, related content, product pages or any other recommendation surface - without your application needing to know which model, embedding provider or ranking pipeline is running underneath.

Respond in real time

Use live session behaviour to adjust ranking while the user is still browsing, watching or shopping.

One interface everywhere

The same recommendation contract across products, surfaces and model architectures.

Change the model, not your code

Rules resolve at request time and models sit behind the same call, so what surfaces can change with no retrain, redeploy or release on your side.

Adaptive relevance, in the open

Most engines guess.
NSL measures.

This sandbox is a real feed. A cursor hovers, adds to cart, and favourites items, emitting weak and strong signals that re-rank the grid as they land. Switch between two users to see the same catalogue resolve to two different front pages.

Live sandboxhome-feed
Personalised home
Trending
Wireless Headset
0%
Wireless Headset
4K Action Cam
0%
4K Action Cam
Smart Speaker
0%
Smart Speaker
Noise Buds Pro
0%
Noise Buds Pro
For you
relevance updated
4K Action Cam
0%
4K Action Cam
Fitness Watch
0%
Fitness Watch
Gaming Mouse
0%
Gaming Mouse
Mirrorless Camera
0%
Mirrorless Camera
Noise Buds Pro
0%
Noise Buds Pro
Portable Projector
0%
Portable Projector
Smart Speaker
0%
Smart Speaker
Wireless Headset
0%
Wireless Headset

Operate the whole system in natural language

An MCP server over the same control surface the console uses. An AI operator can inspect analytics and catalogue data, or work with pipelines, rules and training runs directly - no separate, weaker API to fall back on.

Read the docs

Recommender Performance Index · v3.1

Put your catalogue to work

27 systems, scored against a frozen field on the same datasets and the same budget. Every number below is reproducible, and the ones we did not measure ourselves say so.

Find the next one

Eight histories.
One next item each.

Every clue is what somebody did. The answer is what they reached for next, hidden in the grid, and the history is enough to work it out: the rest of a director’s run, the writer behind the last three, the tool the previous purchases were building towards. Drag across a word to claim it, or mark its first letter and its last.

0 of 8 found
  • Watched

    Breaking Bad · Better Call Saul (8)

  • Watched

    Arrival · Blade Runner 2049 · Sicario (4)

  • Watched

    Black Mirror · Devs · Mr. Robot (9)

  • Watched

    Planet Earth · Blue Planet II · Frozen Planet (9)

  • Purchased

    Espresso machine · Burr grinder · Milk jug (6)

  • Watched

    The Wire · Generation Kill · Show Me a Hero (5)

  • Read

    Dune · Neuromancer · Snow Crash (8)

  • Purchased

    Cast-iron skillet · Carbon steel chef's knife · Dutch oven (9)

Running at scale across media, commerce, and publishing

Index frozen 19 September 2026 · 27 systems measured