GTM AI Index
Index Marketing Experimentation › Convert Experiences vs Optimizely CMS
Experimentation and personalization · September 2026 Edition

Convert Experiences vs Optimizely CMS

One of twelve models named Convert Experiences first on the direct prompt; one named Optimizely CMS. Convert Experiences was named by seven of the twelve models and Optimizely CMS by twelve and Convert Experiences carries 11 labels and Optimizely CMS 47, so the shares are not directly comparable.

Convert Experiences

accepted challenger

Named in one category this edition.

Optimizely CMS

criticized challenger

By Optimizely, San Francisco, United States, founded 2010. Named in eight categories this edition.

First-choice share8%8%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate0%51%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#4#5A position in a field of 14; printed, not drawn.
Labels1147A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Convert Experiences reading right to left. Rank and label count are printed, not drawn.VWO was named alongside these two in eleven of the twelve direct answers. VWO vs Convert Experiences · VWO vs Optimizely CMS · Mida vs Convert Experiences

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all twelve 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 experimentation and personalization page.

By framing

How many of the twelve models made each the first choice, per way of asking, and how many argued against it.
Convert ExperiencesFirst choices, of twelve modelsOptimizely CMS
Direct117 against Optimizely CMS
Paraphrase314 against Optimizely CMS
Comparative06
Budget-constrained004 against Optimizely CMS
Scale-constrained021 against Optimizely CMS
Negative008 against Optimizely CMS
Bars are first choices, 0 to 12 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to twelve.

Every model, every framing

The seventy-two answers behind the chart above, one cell each: where Convert Experiences and Optimizely CMS 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
Convert Experiences Optimizely CMS first choice named as an alternative argued againstblank: not namedEach cell is one answer, Convert Experiences on the left and Optimizely CMS on the right.

The direct prompt

The plain question, one answer per model, grouped by where Convert Experiences and Optimizely CMS stood in it.

Convert Experiences first, Optimizely CMS not the choice

1 of 12 modelsOptimizely CMS was named in the answer but not as the choice, or not at all.
GLM 4.7 FlashXConvert Experiences alternatives: Kameleoon, VWO

Optimizely CMS first, Convert Experiences not the choice

1 of 12 modelsConvert Experiences was named in the answer but not as the choice, or not at all.
GPT-5.4 miniOptimizely CMS alternatives: Kameleoon, VWO

Neither was the first choice, one was named

2 of 12 modelsThe answer put something else first and named one of the two as an alternative.
Grok 4.1 FastVWO alternatives: Convert Experiences, Kameleoon, Personyze
DeepSeek V4 FlashVWO alternatives: Convert Experiences, Kameleoon, Mutiny

Neither was named

8 of 12 modelsThe answer made no first choice from these two in this category.
Claude Haiku 4.5Mutiny alternatives: AB Tasty, Abmatic AI, Mida, VWO
Gemini 3.5 FlashVWO alternatives: Abmatic AI, Markettailor, Userled, Webflow Optimize
Perplexity SonarVWO alternatives: Convert, Mutiny
Mistral SmallPersonyze alternatives: Abmatic AI, VWO
Llama 4 MaverickPersonizely, Personyze, VWO
Qwen 3.7 FlashKameleoon, VWO alternatives: Mutiny, Personizely
Kimi K2VWO alternatives: Intellimize, Mutiny
MiniMax M2.5Personizely, Personyze alternatives: Convert

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
Convert Experiences leads by four points.
Convert Experiences6%#6 of 15
Optimizely CMS2%#9 of 15
The full small business standing →
Mid-marketThe figures above
Level: the same share of first choices.
Convert Experiences8%#4 of 14
Optimizely CMS8%#5 of 14
The full mid-market standing →
Enterprise
The order flips: Optimizely CMS leads at enterprise.
Optimizely CMS45%#1 of 11
Convert Experiences4%#– of 11
The full enterprise standing →

What the models said about Convert Experiences

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 website experimentation and personalization platform for a mid-market B2B company is Convert Experiences” GLM 4.7 FlashX · direct prompt · first choice
“If you must pick just one to start: Go with Convert or VWO.” Qwen 3.7 Flash · paraphrase prompt · first choice
“1. Convert Experiences ⭐ BEST OVERALL CHOICE” Mistral Small · paraphrase prompt · first choice

What the models said about Optimizely CMS

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

“Major Structural / Commercial Red Flags ... Optimizely ... Extreme pricing opacity ... Security incidents” Kimi K2 · negative prompt · hard negative
“High Cost, Declining Support, Rigid Platform... Be very cautious | Optimizely (for SMB/mid-market)” DeepSeek V4 Flash · negative prompt · hard negative
“Platforms to Avoid or Be Very Cautious About ... 1. Optimizely (Now part of Episerver)” Mistral Small · negative prompt · hard negative
“Deepest experimentation infrastructure - considered the enterprise standard for A/B testing... The most mature experimentation platform” Mistral Small · comparative prompt · first choice
“The category reference point for statistical rigor... Choose Optimizely if: You need the most rigorous experimentation program” Kimi K2 · comparative prompt · first choice
“Optimizely — best-in-class statistical rigor + feature experimentation; needs some engineering support; enterprise pricing” DeepSeek V4 Flash · scale prompt · first choice
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.