# Consent and privacy management: what AI models recommend, September 2026

Gane Index, September 2026 Edition. Asked as "consent management platform" and as "cookie consent and privacy compliance tool", 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/gtm-data/consent-and-privacy-management/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This is the permanent record of the September 2026 Edition, published September 9, 2026 and superseded since.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/gtm-data/consent-and-privacy-management/index.md

**Standing:** Osano leads with 30% of first choices; verdict contested. 23 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [Osano](https://www.gane.ai/index/gtm/vendors/osano/index.md) | 30% | 9% | 23 |
| 2 | [CookieYes](https://www.gane.ai/index/gtm/vendors/cookieyes/index.md) | 26% | 13% | 15 |
| 3 | [Cookiebot](https://www.gane.ai/index/gtm/vendors/cookiebot/index.md) | 17% | 13% | 31 |
| 4 | [Usercentrics CMP](https://www.gane.ai/index/gtm/vendors/usercentrics-cmp/index.md) | 17% | 12% | 26 |
| 6 | [Didomi](https://www.gane.ai/index/gtm/vendors/didomi/index.md) | 0% | 0% | 18 |
| 7 | [Ketch](https://www.gane.ai/index/gtm/vendors/ketch/index.md) | 0% | 13% | 15 |
| 8 | [iubenda](https://www.gane.ai/index/gtm/vendors/iubenda/index.md) | 0% | 0% | 11 |
| 10 | [TrustArc](https://www.gane.ai/index/gtm/vendors/trustarc/index.md) | 0% | 20% | 15 |
| 33 | [OneTrust](https://www.gane.ai/index/gtm/vendors/onetrust/index.md) | 0% | 59% | 27 |

Rank is by share of first choices among all 33 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: Cookiebot, Osano, Usercentrics CMP; alternatives Didomi, Ethyca, Transcend
- Claude Opus 4.8: Cookiebot, Osano; alternatives Termly, iubenda
- GPT-6 Astra: Usercentrics CMP; alternatives Didomi, Ketch
- GPT-5.6 Sol: Usercentrics CMP; alternatives Didomi, Osano, Transcend
- Gemini 3.1 Pro: Osano; alternatives Didomi, Ketch, Usercentrics CMP
- Perplexity Sonar Pro: Enzuzo; alternatives Cookiebot, Ketch, Osano, Usercentrics CMP

## Sources the answers cite

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

- usercentrics.com: 21 answers, 33 citations
- osano.com: 18 answers, 22 citations
- enzuzo.com: 15 answers, 40 citations
- ketch.com: 15 answers, 15 citations
- secureprivacy.ai: 14 answers, 20 citations
- cookieyes.com: 14 answers, 16 citations
- onetrust.com: 13 answers, 16 citations
- iubenda.com: 12 answers, 18 citations

Pages named in the most answers:

- https://usercentrics.com/knowledge-hub/consent-management-platforms (13 answers)
- https://enzuzo.com/blog/best-consent-management-platforms (12 answers)
- https://iubenda.com/en/blog/best-consent-management-platform (9 answers)
- https://ketch.com/blog/posts/consent-management-platforms (8 answers)
- https://consentik.com/best-consent-management-platforms (6 answers)
- https://cookieyes.com/blog/best-consent-management-platforms (6 answers)
- https://ethyca.com/news/top-consent-management-platforms-for-compliance (6 answers)
- https://learn.g2.com/best-consent-management-platforms (6 answers)
- https://secureprivacy.ai/blog/best-cmp-2026 (6 answers)
- https://secureprivacy.ai/blog/best-consent-management-platforms-in-2025 (6 answers)

## Warned against

- OneTrust: 16 of 27 labels negative. "OneTrust is raising its minimum annual contract to $10,000 in 2026 — so both are poor fits for a tight budget right now" (Claude Opus 5, budget prompt)
- Cookiebot: 4 of 31 labels negative. "If predictable costs matter, especially across multiple domains or growing content libraries. Pricing depends on domains and subpage counts, and plans can upgrade automatically after scans." (GPT-6 Astra, negative prompt)
- Usercentrics CMP: 3 of 26 labels negative. "NOYB specifically called out the configurations allowed by massive enterprise platforms like OneTrust, TrustArc, Usercentrics, Quantcast, and Cookiebot." (Gemini 3.1 Pro, negative prompt)
- CookieYes: 2 of 15 labels negative. "specific examples flagged as limited include CookieYes... “not suited to enterprise governance requirements,”" (Perplexity Sonar Pro, negative 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.