# Content management systems for marketing sites: what AI models recommend, September 2026

Gane Index, September 2026 Edition. Asked as "marketing website CMS" and as "CMS for a marketing site", six framings each, to six frontier models with search on, on behalf of a mid-market B2B software company. Page: https://www.gane.ai/index/gtm/marketing/marketing-cms/2026-09-expanded

This is the permanent record of the September 2026 Edition, published September 9, 2026 and superseded since. The current standing: https://www.gane.ai/index/gtm/marketing/marketing-cms/index.md

**Standing:** Webflow CMS leads with 44% of first choices; verdict clear leader. 27 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [Webflow CMS](https://www.gane.ai/index/gtm/vendors/webflow-cms/index.md) | 44% | 7% | 29 |
| 2 | [HubSpot Content Hub](https://www.gane.ai/index/gtm/vendors/hubspot-content-hub/index.md) | 22% | 17% | 29 |
| 3 | [WordPress](https://www.gane.ai/index/gtm/vendors/wordpress/index.md) | 22% | 24% | 37 |
| 4 | [Storyblok](https://www.gane.ai/index/gtm/vendors/storyblok/index.md) | 7% | 13% | 15 |
| 5 | [Contentful](https://www.gane.ai/index/gtm/vendors/contentful/index.md) | 4% | 35% | 26 |
| 6 | [Sanity](https://www.gane.ai/index/gtm/vendors/sanity/index.md) | 0% | 16% | 25 |
| 7 | [Squarespace](https://www.gane.ai/index/gtm/vendors/squarespace/index.md) | 0% | 33% | 12 |
| 8 | [Wix](https://www.gane.ai/index/gtm/vendors/wix/index.md) | 0% | 40% | 15 |
| 34 | [Sitecore Experience Platform](https://www.gane.ai/index/gtm/vendors/sitecore-experience-platform/index.md) | 0% | 50% | 10 |
| 38 | [Drupal](https://www.gane.ai/index/gtm/vendors/drupal/index.md) | 0% | 64% | 11 |
| 39 | [Adobe Experience Manager](https://www.gane.ai/index/gtm/vendors/adobe-experience-manager/index.md) | 0% | 69% | 13 |

Rank is by share of first choices among all 39 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 Opus 5: Webflow CMS; alternatives HubSpot Content Hub, Next.js, Sanity, Storyblok
- Claude Opus 4.8: HubSpot Content Hub, Webflow CMS; alternatives Contentful, Sanity, Storyblok, WordPress
- GPT-6 Astra: Webflow CMS; alternatives HubSpot Content Hub, Storyblok, WordPress
- GPT-5.6 Sol: Webflow CMS; alternatives HubSpot Content Hub, Sanity, Storyblok
- Gemini 3.1 Pro: HubSpot Content Hub; alternatives Contentful, Pantheon, Sanity, WP Engine
- Perplexity Sonar Pro: HubSpot Content Hub; alternatives Contentful, Kentico Xperience, Optimizely CMS, Sanity

## Sources the answers cite

28 of 36 answers came back with a source list, from 6 of 6 models. Sites named in the most answers:

- webflow.com: 8 answers, 10 citations
- storyblok.com: 7 answers, 9 citations
- contentful.com: 7 answers, 8 citations
- help.webflow.com: 7 answers, 8 citations
- hubspot.com: 7 answers, 7 citations
- sanity.io: 7 answers, 7 citations
- wordpress.org: 6 answers, 8 citations
- blog.hubspot.com: 6 answers, 6 citations

Pages named in the most answers:

- https://cleardigital.com/insights/best-cms-enterprise-websites-2026 (5 answers)
- https://coremedia.com/blog/the-7-best-cms-platforms-for-enterprises (5 answers)
- https://help.webflow.com/hc/en-us/articles/51059955082387-Updated-pricing-and-simplified-plans-for-May-2026 (5 answers)
- https://sellingsignals.com/best-cms-platforms (5 answers)
- https://hubspot.com/products/content (4 answers)
- https://storyblok.com/docs/concepts/visual-editor.html (4 answers)
- https://therankmasters.com/insights/seo-tools/best-content-management-systems-b2b-saas (4 answers)
- https://wordpress.org/about/features (4 answers)
- https://blog.hubspot.com/website/hubspot-content-hub-pricing (3 answers)
- https://gemeosagency.com/en/blog/webflow-vs-hubspot-cms-comparison (3 answers)

## Warned against

- Wix: 6 of 15 labels negative. "can be fine for simple sites, but you should be cautious if you expect frequent content changes, advanced SEO needs, or future scaling" (Perplexity Sonar Pro, negative prompt)
- WordPress: 9 of 37 labels negative. "Traditional/Monolithic (e.g., WordPress): ... Easier to set up, but can become bloated." ... "Prone to security vulnerabilities if plugins aren't strictly managed." (Gemini 3.1 Pro, scale prompt)
- Drupal: 7 of 11 labels negative. "community security support ended on January 5, 2025... I would not choose it for a new marketing website" (GPT-6 Astra, negative prompt)
- Contentful: 9 of 26 labels negative. "Contentful's free community tier disappeared in Q2 2025 and it now starts at $300/month" (Claude Opus 5, budget prompt)

## Record

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