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

Gane Index, November 2026 Edition. Named in 14 judge labels across 1 category by 11 of 14 models. Page: https://www.gane.ai/index/gtm/vendors/email-on-acid

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| [Email deliverability and testing tools](https://www.gane.ai/index/gtm/marketing/email-deliverability-and-testing/index.md) | 0% | 23 | 7% | 14 |

## What the models said for it

- "Secondary Recommendation: Email on Acid
Best for email rendering and cross-client compatibility" (GLM 4.7 FlashX, Email deliverability)
- "Similar to Litmus, offering pre-send testing for rendering, spam scores, and link checking." (Mistral Small, Email deliverability)
- "similar category to Litmus; typically used for client previews, QA, and pre-send checks" (GPT-5.4 mini, Email deliverability)
- "Offers unlimited preview testing on all plans, making it more cost-effective for agencies" (Gemini 3.5 Flash, Email deliverability)

## And against it

- "Caveat: These are primarily design/rendering testing tools. Their inbox placement features are secondary." (Kimi K2, Email deliverability)

## By model

| Model | First choice | Alternative | Mention | Warning | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 0 | 0 | 0 | 0 | 0 |
| GPT-5.4 mini | 0 | 1 | 1 | 0 | 2 |
| Gemini 3.5 Flash | 0 | 2 | 0 | 0 | 2 |
| Perplexity Sonar | 0 | 1 | 0 | 0 | 1 |
| Grok 4.20 | 0 | 0 | 1 | 0 | 1 |
| Mistral Small | 0 | 1 | 0 | 0 | 1 |
| DeepSeek V4 Flash | 0 | 1 | 0 | 0 | 1 |
| Llama 4 Maverick | 0 | 0 | 0 | 0 | 0 |
| Qwen 3.7 Flash | 0 | 0 | 0 | 0 | 0 |
| Kimi K2 | 0 | 0 | 0 | 1 | 1 |
| GLM 4.7 FlashX | 0 | 1 | 1 | 0 | 2 |
| MiniMax M2.5 | 0 | 1 | 0 | 0 | 1 |
| GPT-6 Luna | 0 | 1 | 0 | 0 | 1 |
| Muse Glimmer 30B | 0 | 0 | 1 | 0 | 1 |

## Sources returned with these answers

The sites and pages cited by the answers that named Email on Acid, from 31 of the 37 answers that named it (only the models that return a source list).

### Domains cited

- glockapps.com: 13
- unspam.email: 13
- myemailverifier.com: 12
- emailtooltester.com: 11
- mailgun.com: 11
- prospeo.io: 10
- g2.com: 9
- saleshandy.com: 9
- sendlayer.com: 8
- github.com: 7

### Pages cited

- https://myemailverifier.com/blog/email-deliverability-tools: 12
- https://glockapps.com/: 10
- https://emailtooltester.com/en/email-deliverability-test: 8
- https://sendlayer.com/blog/best-email-deliverability-tools: 8
- https://softwaresuggest.com/email-testing-tools: 7
- https://unspam.email/articles/email-deliverability-softwares: 7
- https://wiredmessenger.com/blogs/best-email-deliverability-tools: 7
- https://saleshandy.com/blog/email-deliverability-tools: 6

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