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Ecommerce search and merchandising · October 2026 Edition

Klevu vs Luigi's Box

One of fourteen models named Klevu first on the direct prompt; zero named Luigi's Box. Klevu was named by thirteen of the fourteen models and Luigi's Box by seven and Klevu carries 43 labels and Luigi's Box 11, so the shares are not directly comparable.

Klevu

accepted challenger

Named in one category this edition.

Luigi's Box

accepted challenger

Named in one category this edition.

First-choice share10%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate16%0%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#3#8A position in a field of 11; printed, not drawn.
Labels4311A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Klevu reading right to left. Rank and label count are printed, not drawn.Searchspring was named alongside these two in eight of the fourteen direct answers. Algolia vs Klevu · Algolia vs Luigi's Box · Doofinder vs Klevu

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the ecommerce search and merchandising page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
KlevuFirst choices, of fourteen modelsLuigi's Box
Direct10
Paraphrase30
Comparative00
Budget-constrained012 against Klevu
Scale-constrained10
Negative005 against Klevu
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.

Across every category in the October 2026 Edition, Klevu and Luigi's Box were named in the same answer twenty times, of the 105 answers naming Klevu and the 37 naming Luigi's Box. In those answers Luigi's Box took the first choice zero times and Klevu two.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where Klevu and Luigi's Box stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
Claude Haiku 4.5
GPT-5.4 mini
Gemini 3.5 Flash
Perplexity Sonar
Grok 4.1 Fast
Mistral Small
DeepSeek V4 Flash
Llama 4 Maverick
Qwen 3.7 Flash
Kimi K2
GLM 4.7 FlashX
MiniMax M2.5
GPT-6 Luna
Muse Glimmer 30B
Klevu Luigi's Box first choice named as an alternative argued againstblank: not namedEach cell is one answer, Klevu on the left and Luigi's Box on the right.

The direct prompt

The plain question, one answer per model, grouped by where Klevu and Luigi's Box stood in it.

Klevu first, Luigi's Box not the choice

1 of 14 modelsLuigi's Box was named in the answer but not as the choice, or not at all.
Grok 4.1 FastKlevu alternatives: Algolia, Searchspring

Neither was the first choice, one was named

5 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Gemini 3.5 FlashHawksearch alternatives: Algolia, Klevu, Searchspring
DeepSeek V4 FlashCoveo, Searchspring alternatives: Algolia, Klevu
Qwen 3.7 FlashBigCommerce alternatives: Algolia, Klevu
MiniMax M2.5Clerk.io, Searchspring alternatives: Experro, Klevu, Nosto
GPT-6 LunaAlgolia alternatives: Coveo, Hawksearch, Klevu

Neither was named

8 of 14 modelsThe answer made no first choice from these two in this category.
Claude Haiku 4.5BigCommerce B2B Edition alternatives: Bloomreach Discovery, Nosto, OroCommerce, Searchspring
GPT-5.4 miniHawksearch alternatives: BigCommerce, Bloomreach Discovery, Constructor
Perplexity SonarCoveo alternatives: Algolia, Bloomreach Discovery, Constructor, Doofinder
Mistral SmallExperro alternatives: Clerk.io, Hawksearch
Llama 4 Maverickno first choice
Kimi K2Algolia, Bloomreach Discovery alternatives: Clerk.io, Constructor, Searchspring
GLM 4.7 FlashXShopify Plus with B2B Suite alternatives: Algolia, Bloomreach Discovery, Clerk.io, Searchspring
Muse Glimmer 30BSearchspring alternatives: Clerk.io, Coveo

Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Klevu leads by eleven points.
Klevu11%#3 of 13
Luigi's Box0%#8 of 13
The full small business standing →
Mid-marketThe figures above
Klevu leads by eight points.
Klevu10%#3 of 11
Luigi's Box2%#8 of 11
The full mid-market standing →
Enterprise
Level: the same share of first choices.
Klevu0%#9 of 9
Luigi's Box0%#– of 9
The full enterprise standing →

What the models said about Klevu

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.

“Klevu's G2 review sample is very small, so individual complaints—including one about renewal terms—aren't enough to establish a general pattern” GPT-6 Luna · negative prompt · soft negative
“Klevu has less robust analytics and recommendations compared to other tools... may not scale well or support large catalogs” Claude Haiku 4.5 · negative prompt · soft negative
“Limited advanced merchandising — Strong on search basics, but users note gaps in complex merchandising features.” DeepSeek V4 Flash · negative prompt · soft negative
“Often top for mid-market B2B/B2C hybrids... "Mid-market value champion" with 32% conversion lifts” Grok 4.1 Fast · direct prompt · first choice
“Klevu: Best AI-First Option for Modern B2B ... Klevu is the gold standard” Gemini 3.5 Flash · paraphrase prompt · first choice
“I recommend Klevu as the best onsite product search engine” Mistral Small · paraphrase prompt · first choice

What the models said about Luigi's Box

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Three of four in this category shown.

“the best ecommerce search and merchandising platform for a company with a limited budget is Luigi's Box” Llama 4 Maverick · budget prompt · first choice
“High-rated alternatives like Algolia, Klevu, Clerk.io, Luigi's Box, or Fast Simon score well on G2” Grok 4.1 Fast · negative prompt · alternative
“Luigi's Box | Merchandising-led teams wanting strong relevance tuning” DeepSeek V4 Flash · scale prompt · alternative
Also compared

Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.