AI for Email

300 models ranked for email writing. Scored with bonuses for streaming, JSON mode (templates), function calling (CRM), web search (personalization), budget pricing, and large context windows.

How we rank: composite score (benchmark scores 90%, capabilities 5%, context window 5%) adjusted with use-case-specific capability bonuses.

#1 for Email

Claude Fable 5.1

Anthropic

Best Budget

GPT-5.6 Luna Pro (batch)

300

Total Ranked

300

Streaming

286

CRM Ready

Free

Email AI - Ranked by Email Score

#	Model	Provider	Score	$/1M Out	Context
1	Claude Fable 5.1Anthropic	Anthropic	96	$50.00	1M
2	Claude Fable 5.1 (batch)Anthropic	Anthropic	96	$25.00	1M
3	Claude Fable 5Anthropic	Anthropic	96	$50.00	1M
4	Claude Fable 5 (batch)Anthropic	Anthropic	96	$25.00	1M
5	Claude Opus 5.5Anthropic	Anthropic	95	$20.00	1M
6	Claude Opus 5Anthropic	Anthropic	95	$25.00	1M
7	Claude Opus 4.8Anthropic	Anthropic	95	$25.00	1M
8	Claude Opus 4.7Anthropic	Anthropic	95	$25.00	1M
9	GPT-5.5 ProOpenAI	OpenAI	93	$180.00	1.1M
10	GPT-5.5 Pro (batch)OpenAI	OpenAI	93	$90.00	1.1M
11	GPT-5.5OpenAI	OpenAI	93	$30.00	1.1M
12	Gemini 3.1 Pro Preview Custom ToolsGoogle	Google	92	$12.00	1.0M
13	Gemini 3.1 Pro PreviewGoogle	Google	92	$12.00	1.0M
14	Gemini 3.1 Pro Preview (batch)Google	Google	92	$6.00	1.0M
15	GPT-5.6 Luna Pro (batch)OpenAI	OpenAI	89	$0.60	1.1M
16	GPT-5.6 Luna (batch)OpenAI	OpenAI	89	$0.60	1.1M
17	GPT-5.4 ProOpenAI	OpenAI	92	$180.00	1.1M
18	GPT-5.4 Pro (batch)OpenAI	OpenAI	92	$90.00	1.1M
19	GPT-5.4OpenAI	OpenAI	92	$15.00	1.1M
20	GPT-5.3-CodexOpenAI	OpenAI	91	$14.00	400K
21	GPT-5.2-CodexOpenAI	OpenAI	91	$14.00	400K
22	GPT-5.2 ChatOpenAI	OpenAI	91	$14.00	128K
23	GPT-5.2 ProOpenAI	OpenAI	91	$168.00	400K
24	GPT-5.2 Pro (batch)OpenAI	OpenAI	91	$84.00	400K
25	GPT-5.2OpenAI	OpenAI	91	$14.00	400K
26	Claude Opus 4.6Anthropic	Anthropic	90	$25.00	1M
27	GPT-5.6 Luna ProOpenAI	OpenAI	89	$1.20	1.1M
28	GPT-5.6 LunaOpenAI	OpenAI	89	$1.20	1.1M
29	GPT-5.6 Terra ProOpenAI	OpenAI	89	$12.00	1.1M
30	GPT-5.6 Terra Pro (batch)OpenAI	OpenAI	89	$6.00	1.1M

AI Email Use Cases

Cold Outreach & Prospecting

Web search models research prospects before drafting personalized outreach. Function calling pulls CRM data to customize every email with relevant company details.

Newsletter Writing

Large output models generate full newsletter drafts with sections, CTAs, and formatting. Streaming lets you review and edit content as it appears in real-time.

Email Campaigns at Scale

JSON mode outputs structured email templates for bulk campaigns. Budget models under $1/1M tokens make it affordable to generate thousands of personalized variations.

Reply & Follow-Up Management

Large context windows process entire email threads for context-aware replies. Models analyze tone, extract action items, and draft appropriate follow-ups automatically.

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Frequently Asked Questions

Top models produce natural-sounding email drafts across tones (formal, friendly, urgent). Provide context about the recipient relationship and purpose for best results. Streaming lets you watch and edit in real-time. Models with large context remember prior email thread content.

Models categorize, prioritize, and summarize incoming emails. They draft replies, flag action items, and extract key information into structured formats. Function calling integrates with Gmail/Outlook APIs for end-to-end email automation.

Yes, models generate personalized subject lines, body copy, and CTAs based on customer segments. They create A/B test variants and adapt messaging for different personas. JSON mode outputs structured email templates for marketing platforms.

Streaming enables instant draft generation. Function calling integrates with email APIs and CRM for context. Large context processes entire email threads. Web search adds current information to replies. Together these cut average reply drafting from 10 minutes to 30 seconds.