# Experimentation and personalization: what AI models recommend, November 2026

Gane Index, November 2026 Edition. Asked as "website experimentation and personalization platform" and as "A/B testing and personalization tool", six framings each, to fourteen models with search on, on behalf of a mid-market B2B company. Page: https://www.gane.ai/index/gtm/marketing/experimentation-and-personalization/2026-11

**Standing:** VWO leads with 31% of first choices; verdict contested. 61 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [VWO](https://www.gane.ai/index/gtm/vendors/vwo/index.md) | 31% | 14% | 65 |
| 2 | [Convert Experiences](https://www.gane.ai/index/gtm/vendors/convert-experiences/index.md) | 16% | 5% | 41 |
| 3 | [GrowthBook](https://www.gane.ai/index/gtm/vendors/growthbook/index.md) | 8% | 0% | 24 |
| 6 | [Personyze](https://www.gane.ai/index/gtm/vendors/personyze/index.md) | 5% | 0% | 18 |
| 8 | [Optimizely CMS](https://www.gane.ai/index/gtm/vendors/optimizely-cms/index.md) | 5% | 46% | 61 |
| 9 | [PostHog](https://www.gane.ai/index/gtm/vendors/posthog/index.md) | 3% | 0% | 21 |
| 11 | [AB Tasty](https://www.gane.ai/index/gtm/vendors/ab-tasty/index.md) | 2% | 17% | 30 |
| 12 | [Mutiny](https://www.gane.ai/index/gtm/vendors/mutiny/index.md) | 2% | 31% | 16 |
| 17 | [Kameleoon](https://www.gane.ai/index/gtm/vendors/kameleoon/index.md) | 0% | 9% | 32 |
| 18 | [Statsig](https://www.gane.ai/index/gtm/vendors/statsig/index.md) | 0% | 5% | 21 |
| 19 | [LaunchDarkly](https://www.gane.ai/index/gtm/vendors/launchdarkly/index.md) | 0% | 0% | 17 |
| 20 | [Dynamic Yield](https://www.gane.ai/index/gtm/vendors/dynamic-yield/index.md) | 0% | 10% | 20 |

Rank is by share of first choices among all 100 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels.

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

- Claude Haiku 4.5: VWO; alternatives Mutiny, Personyze
- GPT-5.4 mini: Optimizely CMS; alternatives Adobe Target, Dynamic Yield, VWO
- Gemini 3.5 Flash: VWO; alternatives AB Tasty, HubSpot Marketing Hub, Kameleoon
- Perplexity Sonar: HubSpot Content Hub; alternatives Abmatic AI, Croct, Mutiny, VWO
- Grok 4.20: Croct; alternatives AB Tasty, Kameleoon, VWO
- Mistral Small: HubSpot Content Hub; alternatives Optimizely CMS, Personyze, VWO
- DeepSeek V4 Flash: Convert Experiences, VWO; alternatives Mutiny, Personyze
- Llama 4 Maverick: HubSpot Content Hub
- Qwen 3.7 Flash: VWO; alternatives Convert Experiences, Mutiny
- Kimi K2: VWO; alternatives Mutiny, Personyze
- GLM 4.7 FlashX: Personyze; alternatives HubSpot Content Hub, Optimizely CMS, Right Message, VWO
- MiniMax M2.5: Personyze; alternatives Convert Experiences, VWO
- GPT-6 Luna: VWO; alternatives AB Tasty
- Muse Glimmer 30B: VWO; alternatives Convert Experiences, Mutiny, Optimizely CMS, Personyze

## Sources the answers cite

76 of 84 answers came back with a source list, from 14 of 14 models. Sites named in the most answers:

- convert.com: 36 answers, 69 citations
- personyze.com: 29 answers, 34 citations
- blog.croct.com: 26 answers, 36 citations
- optimizely.com: 23 answers, 31 citations
- smarte.pro: 17 answers, 17 citations
- growthbook.io: 15 answers, 22 citations
- webflow.com: 15 answers, 15 citations
- mida.so: 14 answers, 14 citations

Pages named in the most answers:

- https://convert.com/blog/a-b-testing/top-ab-testing-tools (19 answers)
- https://convert.com/blog/a-b-testing/ab-testing-tools-for-growth-teams (17 answers)
- https://smarte.pro/blog/website-personalization-software (17 answers)
- https://personyze.com/best-website-personalization-tools (15 answers)
- https://personyze.com/best-ab-testing-tools (14 answers)
- https://webflow.com/blog/a-b-testing-tools (14 answers)
- https://blog.croct.com/post/best-website-personalization-platforms (12 answers)
- https://blog.croct.com/post/best-personalization-platforms-mid-market (11 answers)
- https://speero.com/ab-testing-tools (11 answers)
- https://optimizely.com/field-notes/guides/experimentation-buyers-guide (10 answers)

## Warned against

- Optimizely CMS: 28 of 61 labels negative. "you should exercise significant caution with Optimizely, particularly regarding its cost structure, support quality, and technical performance" (Qwen 3.7 Flash, negative prompt)
- Adobe Target: 20 of 40 labels negative. "Avoid beginning with Optimizely, Adobe Target, Kameleoon, or AB Tasty" (Perplexity Sonar, budget prompt)
- VWO: 9 of 65 labels negative. "Avoid VWO if page speed and user trust are critical, or if you have limited technical support." (GLM 4.7 FlashX, negative prompt)
- Google Optimize: 9 of 13 labels negative. "Why avoid: Google discontinued the product entirely. If you're still using it, you're running on unsupported infrastructure." (Kimi K2, negative prompt)

## Movement since October 2026

Floor: 11 points of share, measured on the calibration repeat.
Same leader: VWO at 31%.

- Convert Experiences: 24% to 16%, −8. Inside the floor by 3 points · rank 2 of 100, unchanged.
- GrowthBook: 15% to 8%, −7. Inside the floor by 4 points · rank 3 of 100, unchanged.
- Mutiny: 7% to 2%, −5. Inside the floor by 6 points · rank 4 → 12 of 100.
- VWO: 27% to 31%, +4. Inside the floor by 7 points · rank 1 of 100, unchanged.
- Kameleoon: 4% to 0%, −4. Inside the floor by 7 points · rank 6 → 17 of 100.
- Personyze: 2% to 5%, +3. Inside the floor by 8 points · rank 9 → 6 of 100.
- Optimizely CMS: 7% to 5%, −2. Inside the floor by 9 points · rank 5 → 8 of 100.
- AB Tasty: 0% to 2%, +2. Inside the floor by 9 points · rank 14 → 11 of 100.
- PostHog: 4% to 3%, −1. Inside the floor by 10 points · rank 7 → 9 of 100.
- Statsig: 0% to 0%, ±0. Inside the floor by 11 points · rank 15 → 18 of 100.
- LaunchDarkly: 0% to 0%, ±0. Inside the floor by 11 points · rank 16 → 19 of 100.
- Dynamic Yield: 0% to 0%, ±0. Inside the floor by 11 points · rank 26 → 20 of 100.

## Record

- Method: https://www.gane.ai/index/gtm/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/gtm.