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  1. Home
  2. Best For
  3. Email Copywriting

Best AI for Email Copywriting

Which AI writes the most compelling email copy? Ranked across marketing sequences, newsletters, and persuasive outreach content.

Updated Apr 2026
3 challenges
20 models
#1 Gemini 3.1 Pro Preview

How Email Copywriting rankings are computed

Rankings are based on 20 models tested across 3 email copywriting challenges. Each model is scored using a five-signal composite: 30% Rival Index (with product-line inheritance for new models), 20% task coverage, 20% challenge-scoped duel performance, 15% model recency, and 15% model tier. Models are deduplicated by product line so only the newest version per model family appears. Gemini 3.1 Pro Preview currently leads with a score of 100.0/100. All ranking data is part of Rival's open dataset of 21,000+ human preference votes.

Rival's Pick
#1 Rival IndexGoogle flagshipSlight edge
Gemini 3.1 Pro Preview
Gemini 3.1 Pro Previewgoogle

Gemini 3.1 Pro Preview edges out the field for Email Copywriting. Claude Opus 4.6 is close but lacks the community consensus.

Claude Opus 4.6
Claude Opus 4.6
anthropic
90score
Gemini 3.1 Pro Preview
Gemini 3.1 Pro Preview
google
100score
Z.ai: GLM 5
Z.ai: GLM 5
zhipu
83score

Head-to-Head

Gemini 3.1 Pro Preview logo
Gemini 3.1 Pro Preview
vs
Claude Opus 4.6
Claude Opus 4.6 logo
Gemini 3.1 Pro Preview logo
Gemini 3.1 Pro Preview
vs
Z.ai: GLM 5
Z.ai: GLM 5 logo
Claude Opus 4.6 logo
Claude Opus 4.6
vs
Z.ai: GLM 5
Z.ai: GLM 5 logo

Full Rankings

20 models
#
Model
Coverage
Index
Score
4
Gemini 3 Flash Preview logo
Gemini 3 Flash Previewgoogle
3/3
#7
82
5
Qwen3 Coder Next logo
Qwen3 Coder Nextqwen
3/3
#16
81
6
Google: Gemma 4 26B A4B logo
Google: Gemma 4 26B A4Bgoogle
3/3
#10
77
7
GPT-5.4 Mini logo
GPT-5.4 Miniopenai
3/3
#64
76
8
Google: Gemma 4 31B logo
Google: Gemma 4 31Bgoogle
2/3
#6
75
9
Claude Haiku 4.5 logo
Claude Haiku 4.5anthropic
3/3
#25
74
10
GPT-5.4 logo
GPT-5.4openai
3/3
#46
74
11
Qwen: Qwen3.6 Plus Preview (free) logo
Qwen: Qwen3.6 Plus Preview (free)qwen
3/3
#2
74
12
Z.ai: GLM 5.1 logo
Z.ai: GLM 5.1z-ai
3/3
73
13
GPT-5.3-Codex logo
GPT-5.3-Codexopenai
3/3
#50
73
14
Grok 4.20 Multi-Agent Beta logo
Grok 4.20 Multi-Agent Betaxai
3/3
#84
73
15
GPT OSS 120B logo
GPT OSS 120Bopenai
3/3
#89
71
16
Healer Alpha logo
Healer Alphaopenrouter
3/3
#33
71
17
Claude 3.7 Thinking Sonnet logo
Claude 3.7 Thinking Sonnetanthropic
2/3
#20
71
18
Bert-Nebulon Alpha logo
Bert-Nebulon Alphaopenrouter
3/3
#110
69
19
Kimi K2 logo
Kimi K2moonshotai
3/3
#45
69
20
Horizon Beta logo
Horizon Betaopenrouter
3/3
#38
69
Challenges3
Satirical Fake News
Requires wit and cultural awareness
AI Manifesto
Tests deep reasoning and creative writing
Futuristic Prediction
Tests analytical and predictive capabilities
Related
Creative WritingHumorSpeculation & Futurism
vs

Ask them anything yourself

Gemini 3.1 Pro PreviewClaude Opus 4.6

Keep exploring

#1 VS #2

Gemini 3.1 Pro Preview vs Claude Opus 4.6

The top two for Email Copywriting, compared directly

RELATED

Best AI for Creative Writing

See which models rank highest here

FAQ

What is the best AI for email copywriting?

Rival ranks AI models for email copywriting using a five-signal composite algorithm across 3 challenges: 30% Rival Index, 20% task coverage, 20% challenge duels, 15% recency, and 15% model tier. Newer models inherit Rival scores from predecessors within their product line, and only the newest version per model family is shown. As of the latest refresh, Gemini 3.1 Pro Preview leads with a composite score of 100.0/100.

How are AI models ranked for email copywriting on Rival?

Each model is scored with a multi-signal composite: 30% Rival Index, 20% task coverage, 20% challenge duels, 15% recency, and 15% model tier, plus a small bonus for major AI providers. Rankings are based on 20 models tested across 3 email copywriting challenges. Models are deduplicated by product line (e.g., only the latest GLM or GPT version appears). All duel votes are blind: voters see responses without knowing which model produced them.

Can I compare AI models for email copywriting?

Yes. Each model in the ranking links to its profile page, and you can compare any two models side-by-side on Rival's Compare page to see their actual responses to email copywriting challenges.

How often are the email copywriting rankings updated?

Rankings are refreshed every few hours. They incorporate the latest Rival Index scores from community duels, model recency, and any new model responses added to the platform. All ranking data is part of Rival's open dataset.

We compare AI models for a living. On purpose. We chose this.

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