# Email on Acid: how AI models rank it, October 2026

GTM AI Recommendation Index, October 2026 Edition. Named in 13 judge labels across 1 categories by 8 of 14 models. Page: https://gtm-ai-index.com/vendors/email-on-acid/

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| Email deliverability and testing tools | 0% | 25 | 8% | 13 |

## What the models said for it

- "Mid-sized teams looking for a more cost-effective alternative to Litmus with a strong focus on accessibility." (Gemini 3.5 Flash, Email deliverability)
- "Email on Acid (~$99/mo) – for cross-client rendering previews and accessibility checks" (Kimi K2, Email deliverability)
- "If your team prioritizes rendering over placement, consider Litmus as a close second." (Grok 4.1 Fast, Email deliverability)
- "100+ client rendering, WCAG 2.2 accessibility, B2B/B2C spam analysis. ~$99/month." (Muse Glimmer 30B, Email deliverability)

## And against it

- "User sentiment includes reports of inaccurate renderings, occasional bugs and glitches." (Claude Haiku 4.5, Email deliverability)

## What it publishes

Every page emailonacid.com exposes, read 2026-10-05: 859 addresses. By kind, pages and the last 90 days:

- blog: 532 pages, 0 in the last 90 days, latest 2026-05-26
- case study: 5 pages, 0 in the last 90 days, latest undated
- webinar or virtual event: 10 pages, 0 in the last 90 days, latest 2021-01-13
- report or ebook: 1 pages, 0 in the last 90 days, latest undated
- comparison: 11 pages, 0 in the last 90 days, latest 2023-07-27
- template or tool: 5 pages, 0 in the last 90 days, latest 2023-07-17
- glossary or explainer: 53 pages, 0 in the last 90 days, latest 2024-08-01
- podcast or video: 1 pages, 0 in the last 90 days, latest 2024-07-23
- news or press: 1 pages, 0 in the last 90 days, latest 2019-10-02
- Recent: 2026-05-26 blog: Email authentication protocols https://www.emailonacid.com/blog/article/email-deliverability/email-authentication-protocols
- Recent: 2026-03-12 blog: History of email https://www.emailonacid.com/blog/article/email-marketing/history-of-email
- Recent: 2026-03-12 blog: History of email https://www.emailonacid.com/blog/article/needs-improvement/history-of-email/
- Recent: 2026-02-25 blog: Email rendering deliverability https://www.emailonacid.com/blog/article/email-deliverability/email-rendering-deliverability
- Recent: 2026-02-17 blog: A practical guide to using emojis in email https://www.emailonacid.com/blog/article/email-marketing/a-practical-guide-to-using-emojis-in-email
- Recent: 2026-02-05 blog: Valentines subject lines https://www.emailonacid.com/blog/article/email-marketing/valentines-subject-lines

## 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, October 2026 Edition, gtm-ai-index.com.