Ecommerce search and merchandising · October 2026 Edition
Klevu vs Clerk.io
One of fourteen models named Klevu first on the direct prompt; one named Clerk.io. Klevu was named by thirteen of the fourteen models and Clerk.io by nine and Klevu carries 43 labels and Clerk.io 16, so the shares are not directly comparable.
Named in one category this edition.
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%6%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#3#6A position in a field of 11; printed, not drawn.
Labels4316A 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 Clerk.io · 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 modelsClerk.io
Direct11
Paraphrase30
Comparative01
Budget-constrained002 against Klevu · 1 against Clerk.io
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.
Every model, every framing
The eighty-four answers behind the chart above, one cell each: where Klevu and Clerk.io stood in it.
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| 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 Clerk.io first choice named as an alternative argued againstblank: not namedEach cell is one answer, Klevu on the left and Clerk.io on the right.The direct prompt
The plain question, one answer per model, grouped by where Klevu and Clerk.io stood in it.
Klevu first, Clerk.io not the choice
1 of 14 modelsClerk.io was named in the answer but not as the choice, or not at all.Grok 4.1 FastKlevu alternatives: Algolia, Searchspring
Clerk.io first, Klevu an alternative
1 of 14 modelsKlevu was named in the answer but not as the choice, or not at all.MiniMax M2.5Clerk.io, Searchspring alternatives: Experro, Klevu, Nosto
Neither was the first choice, one was named
8 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
Mistral SmallExperro alternatives: Clerk.io, Hawksearch
DeepSeek V4 FlashCoveo, Searchspring alternatives: Algolia, Klevu
Qwen 3.7 FlashBigCommerce alternatives: Algolia, Klevu
Kimi K2Algolia, Bloomreach Discovery alternatives: Clerk.io, Constructor, Searchspring
GLM 4.7 FlashXShopify Plus with B2B Suite alternatives: Algolia, Bloomreach Discovery, Clerk.io, Searchspring
GPT-6 LunaAlgolia alternatives: Coveo, Hawksearch, Klevu
Muse Glimmer 30BSearchspring alternatives: Clerk.io, Coveo
Neither was named
4 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
Llama 4 Maverickno first choice
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
Mid-marketThe figures above
Enterprise
Level: the same share of first choices.
Klevu0%#9 of 9Clerk.io0%#– of 9What 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 Clerk.io
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of five in this category shown.
“avoid highly customizable API-first tools like Algolia or Clerk.io unless they have pre-built themes” Qwen 3.7 Flash · budget prompt · soft negative
“If you want to stop managing 4 different vendors: Choose Clerk.io or Nosto.” GLM 4.7 FlashX · comparative prompt · first choice
“Clerk.io (Top Pick for Mid-Market)” MiniMax M2.5 · direct prompt · first choice
“Clerk.io is also worth considering if you want a unified platform that includes email and audience automation.” Mistral Small · direct prompt · alternative
Also compared
Algolia vs KlevuAlgolia vs Clerk.ioDoofinder vs KlevuDoofinder vs Clerk.ioKlevu vs SearchspringKlevu vs CoveoKlevu vs Bloomreach DiscoveryKlevu vs Luigi's BoxSearchspring vs Clerk.ioCoveo vs Clerk.ioClerk.io vs Bloomreach DiscoveryClerk.io vs Luigi's BoxAll twenty-eight head-to-head pages and the full ecommerce search standing
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.