# Experimentation and personalization for small business buyers: what AI models recommend, September 2026

GTM AI Recommendation Index, September 2026 Edition. Asked as "website experimentation and personalization platform" and as "A/B testing and personalization tool", six framings each, to twelve models with search on, on behalf of a small B2B company. Page: https://gtm-ai-index.com/marketing/experimentation-and-personalization/smb/

**Standing:** VWO leads with 38% of first choices; verdict contested. 52 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| # | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | VWO | 38% | 15% | 52 |
| 2 | Mida | 10% | 0% | 19 |
| 3 | Mutiny | 10% | 36% | 25 |
| 4 | Convert | 8% | 4% | 26 |
| 5 | PostHog | 8% | 0% | 22 |
| 6 | Convert Experiences | 6% | 0% | 11 |
| 7 | GrowthBook | 2% | 5% | 22 |
| 8 | Personyze | 2% | 0% | 10 |
| 9 | Optimizely CMS | 2% | 75% | 40 |
| 10 | Statsig | 0% | 11% | 19 |
| 11 | AB Tasty | 0% | 43% | 23 |
| 12 | Kameleoon | 0% | 55% | 11 |

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: Claspo, Mutiny; alternatives OptiMonk
- GPT-5.4 mini: VWO; alternatives Optimizely CMS
- Gemini 3.5 Flash: VWO; alternatives Convert, HubSpot, Webflow Optimize
- Perplexity Sonar: VWO; alternatives Mida, Mutiny
- Grok 4.1 Fast: Convert Experiences; alternatives Crazy Egg, VWO
- Mistral Small: VWO; alternatives Convert, PostHog, Statsig
- DeepSeek V4 Flash: VWO; alternatives Convert, Mida, Personyze, Recotap
- Llama 4 Maverick: Mutiny, Optimizely CMS, VWO
- Qwen 3.7 Flash: Convert, VWO; alternatives Mutiny, PostHog, Statsig, Zoho PageSense
- Kimi K2: Mida, Mutiny; alternatives GrowthBook
- GLM 4.7 FlashX: Personyze; alternatives Croct, Hyperise, Proof, RightMessage
- MiniMax M2.5: Convert, VWO; alternatives Optimizely CMS

## Sources the answers cite

20 of 72 answers came back with a source list, from 4 of 12 models. Sites named in the most answers:

- vwo.com: 11 answers, 15 citations
- convert.com: 9 answers, 11 citations
- optimizely.com: 6 answers, 8 citations
- statsig.com: 5 answers, 12 citations
- amplitude.com: 5 answers, 7 citations
- growthbook.io: 4 answers, 7 citations
- contentsquare.com: 4 answers, 5 citations
- mida.so: 4 answers, 4 citations

Pages named in the most answers:

- https://convert.com/blog/a-b-testing/ab-testing-tools-for-growth-teams (5 answers)
- https://statsig.com/comparison/best-experimentation-tools-marketers (5 answers)
- https://amplitude.com/compare/best-product-experimentation-tools-for-startups (3 answers)
- https://amplitude.com/compare/top-ab-testing-platforms (3 answers)
- https://contentsquare.com/guides/product-experimentation/tools (3 answers)
- https://cxl.com/blog/ab-testing-tools (3 answers)
- https://geteppo.com/blog/best-ab-testing-tools (3 answers)
- https://growthbook.io/insights/best-ai-experimentation-platforms (3 answers)
- https://guideflow.com/blog/best-personalization-software (3 answers)
- https://kameleoon.com/blog/best-ab-testing-tools (3 answers)

## Warned against

- Optimizely CMS: 30 of 40 labels negative. "Optimizely — multiple sources flag high cost, implementation overhead, and enterprise-focused packaging as a poor fit for smaller teams." (Perplexity Sonar, negative prompt)
- Adobe Target: 23 of 25 labels negative. "Why to avoid them: Prohibitive Pricing... To get the most out of platforms like Adobe Target, you almost always require dedicated software engineers" (Gemini 3.5 Flash, negative prompt)
- Bloomreach: 10 of 11 labels negative. "High-End AI-Driven Personalization Engines (e.g., Dynamic Yield, Bloomreach)... Why to avoid them" (Gemini 3.5 Flash, negative prompt)
- Dynamic Yield: 14 of 20 labels negative. "High-End AI-Driven Personalization Engines (e.g., Dynamic Yield, Bloomreach)... Why to avoid them" (Gemini 3.5 Flash, negative prompt)

## Record

- Method: https://gtm-ai-index.com/methodology/
- Raw judge labels and full responses: https://gtm-ai-index.com/data/
- License: CC BY 4.0. Cite as GTM AI Recommendation Index, September 2026 Edition, gtm-ai-index.com.