| 1 |
Postmark |
|
10/10 |
1 | 2 | 1 | 1 | 3 | 3 | 1 | 1 | 1 | 3 |
- Claude Haiku 5.5 (#1) Excellent deliverability and fast support, focused purely on transactional email.
- Gemini 4 Argon (#1) Unmatched deliverability and speed by strictly separating transactional from promotional email traffic.
- Qwen 3.8 Flash (#1) Best-in-class transactional deliverability and speed.
- Kimi K3 (#1) Best-in-class deliverability and speed focused purely on transactional email.
- MiniMax M3 (#1) Fastest delivery, excellent reliability for transactional emails.
- Mistral Large 4 (#1) Best deliverability and speed for transactional emails, trusted by developers.
- GPT-6 Luna (#2) Strong deliverability, excellent diagnostics, and a straightforward transactional-email developer experience.
- DeepSeek V4 Pro (#3) Blazing-fast delivery, 45-day content history, stellar support
- GLM-5.3 (#3) Best-in-class deliverability for transactional email specifically.
- Nemotron 3 Ultra (#3) Best-in-class deliverability, focus on transactional, lightning fast
|
| 2 |
SendGrid |
|
10/10 |
3 | 3 | 5 | 2 | 1 | 1 | 2 | 2 | 2 | 1 |
- DeepSeek V4 Pro (#1) Best deliverability, intuitive API, generous free tier, deep analytics
- GLM-5.3 (#1) Industry standard reliability, great deliverability, and scale.
- Nemotron 3 Ultra (#1) Market leader, excellent deliverability, robust APIs, scalable pricing
- Qwen 3.8 Flash (#2) Industry standard, scalable, huge developer adoption.
- Kimi K3 (#2) Proven scale, strong APIs, solid analytics and deliverability tooling.
- MiniMax M3 (#2) Robust API, strong deliverability, great developer docs.
- Mistral Large 4 (#2) Reliable, scalable, and well-documented with strong API and analytics.
- Claude Haiku 5.5 (#3) Mature API and broad feature set, backed by Twilio.
- GPT-6 Luna (#3) Mature API, extensive integrations, and scalable infrastructure for a wide range of sending needs.
- Gemini 4 Argon (#5) Battle-tested enterprise scale with comprehensive analytics and wide platform integrations.
|
| 3 |
Amazon SES |
|
10/10 |
2 | 1 | 2 | 4 | 4 | 2 | 3 | 4 | 4 | 4 |
- GPT-6 Luna (#1) Excellent deliverability and low cost at scale, with flexible APIs and broad cloud infrastructure.
- Claude Haiku 5.5 (#2) Extremely cheap at scale, though it requires more setup and tuning.
- Gemini 4 Argon (#2) Unbeatable cost-efficiency and massive scalability for teams comfortable managing AWS infrastructure.
- GLM-5.3 (#2) Cheapest at scale, deeply integrated with AWS.
- Kimi K3 (#3) Unbeatable cost at scale, reliable deliverability, tight AWS integration.
- Qwen 3.8 Flash (#4) Cheapest at scale with excellent deliverability.
- DeepSeek V4 Pro (#4) Dirt cheap at scale, tight AWS integration, highly reliable
- MiniMax M3 (#4) Extremely cheap, highly scalable, integrates with AWS.
- Mistral Large 4 (#4) Lowest cost option for high-volume sending with AWS integration.
- Nemotron 3 Ultra (#4) Ultra-low cost, massive scale, AWS integration, bare-bones
|
| 4 |
Mailgun |
|
10/10 |
4 | 5 | 4 | 5 | 2 | 4 | 4 | 3 | 3 | 2 |
- DeepSeek V4 Pro (#2) Developer-first, powerful API, excellent email validation and routing
- Nemotron 3 Ultra (#2) Developer-friendly, powerful APIs, great inbound processing, flexible
- MiniMax M3 (#3) Powerful email API, flexible routing, good for devs.
- Mistral Large 4 (#3) Developer-friendly with powerful APIs ideal for transactional email at scale.
- Claude Haiku 5.5 (#4) Developer-friendly API with flexible routing and solid deliverability.
- Gemini 4 Argon (#4) Powerful routing rules, detailed logs, and robust APIs built specifically for developers.
- GLM-5.3 (#4) Developer-friendly APIs with strong inbound parsing tools.
- Kimi K3 (#4) Powerful API-first platform with strong routing and validation features.
- GPT-6 Luna (#5) Powerful APIs, useful delivery analytics, and flexible tools for technical teams.
- Qwen 3.8 Flash (#5) Powerful routing and APIs for developers.
|
| 5 |
Resend |
|
9/10 |
5 | 4 | 3 | 6 | 8 | 6 | 5 | 5 | 5 | |
- Gemini 4 Argon (#3) Best-in-class developer experience with modern APIs and seamless React Email integration.
- GPT-6 Luna (#4) Modern developer-focused API and clean workflows make implementation especially quick.
- Claude Haiku 5.5 (#5) Modern developer experience with clean APIs and React email support.
- Kimi K3 (#5) Modern developer experience, excellent docs, React email support.
- MiniMax M3 (#5) Modern DX, React Email support, clean API.
- Mistral Large 4 (#5) Modern, developer-first with beautiful docs and exceptional DX.
- Qwen 3.8 Flash (#6) Modern developer-first API, fast setup.
- DeepSeek V4 Pro (#8) Modern developer experience, React email support, clean dashboard
|
| 6 |
Brevo |
|
10/10 |
6 | 6 | 6 | 3 | 6 | 7 | 6 | 6 | 7 | 8 |
- Qwen 3.8 Flash (#3) Generous free tier, solid SMTP/API offering.
- Claude Haiku 5.5 (#6) Generous free tier and combines transactional with marketing email.
- GPT-6 Luna (#6) Combines transactional sending with accessible tools and competitive pricing for smaller teams.
- Gemini 4 Argon (#6) Great all-in-one value combining reliable transactional APIs with built-in CRM and SMS capabilities.
- DeepSeek V4 Pro (#6) Simple UI, built-in CRM, solid deliverability on free plan
- Kimi K3 (#6) Generous free tier, affordable pricing, transactional plus marketing combined.
- MiniMax M3 (#6) Affordable pricing, solid deliverability, EU-friendly.
- GLM-5.3 (#7) Generous free tier combining transactional and marketing email.
- Mistral Large 4 (#7) Great value with generous free tier and solid transactional features.
- Nemotron 3 Ultra (#8) All-in-one marketing + transactional, generous free tier, easy UI
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| 7 |
SparkPost |
|
10/10 |
8 | 7 | 8 | 10 | 5 | 9 | 9 | 7 | 8 | 5 |
- DeepSeek V4 Pro (#5) Advanced analytics, predictive inbox placement, high throughput
- Nemotron 3 Ultra (#5) Enterprise-grade, predictive analytics, high throughput, reliable
- GPT-6 Luna (#7) Robust delivery analytics and high-volume sending capabilities suit demanding workloads.
- MiniMax M3 (#7) Enterprise-grade deliverability, detailed analytics.
- Claude Haiku 5.5 (#8) Strong enterprise deliverability and analytics for high-volume senders.
- Gemini 4 Argon (#8) Enterprise-grade throughput and predictive deliverability intelligence for high-volume senders.
- Mistral Large 4 (#8) Enterprise-grade deliverability with excellent real-time analytics.
- GLM-5.3 (#9) Powerful analytics and deliverability insight, used by senders at scale.
- Kimi K3 (#9) High-volume deliverability with strong analytics and competitive pricing.
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| 8 |
Mandrill |
|
8/10 |
| | 10 | 8 | 7 | 5 | 8 | 10 | 6 | 6 |
- GLM-5.3 (#5) Transactional add-on beloved by Mailchimp users.
- Mistral Large 4 (#6) Deep Mailchimp integration with solid deliverability and templates.
- Nemotron 3 Ultra (#6) Tight Mailchimp integration, trusted brand, pay-as-you-go
- DeepSeek V4 Pro (#7) Familiar Mandrill heritage, tight Mailchimp marketing integration
- Qwen 3.8 Flash (#8) Convenient if already on Mailchimp ecosystem.
- Gemini 4 Argon (#10) Seamless integration and solid reliability for businesses already standardized on Mailchimp.
|
| 9 |
Mailjet |
|
7/10 |
7 | 8 | | 7 | 10 | 8 | | 8 | | 7 |
- Claude Haiku 5.5 (#7) Reliable sending with a useful template editor and reasonable pricing.
- Qwen 3.8 Flash (#7) Reliable transactional plus marketing combined.
- Nemotron 3 Ultra (#7) Strong EU compliance, collaborative features, good deliverability
- GPT-6 Luna (#8) Reliable API and collaboration features offer a practical option for varied team sizes.
- GLM-5.3 (#8) Easy setup, good API, collaborative editing tools.
- MiniMax M3 (#8) Good templating, real-time monitoring, EU servers.
- DeepSeek V4 Pro (#10) Real-time collaboration, drag-and-drop editor, good EU compliance
|
| 10 |
SMTP2GO |
|
4/10 |
| 9 | | | 9 | 10 | 7 | | | |
- Kimi K3 (#7) Reliable, simple setup, responsive support for straightforward needs.
- GPT-6 Luna (#9) Dependable SMTP relay with clear monitoring and a relatively simple setup.
- DeepSeek V4 Pro (#9) Global servers, detailed reporting, no-nonsense delivery focus
- GLM-5.3 (#10) Simple, reliable SMTP relay with great support.
|
| 11 |
Mailtrap |
|
2/10 |
| | 7 | | | | 10 | | | |
- Gemini 4 Argon (#7) Combines safe email sandbox testing with reliable production transactional sending and analytics.
- Kimi K3 (#10) Great sandbox testing plus production sending with solid deliverability.
|
| 12 |
Customer.io |
|
2/10 |
| | | | | | | 9 | 9 | |
- MiniMax M3 (#9) Reliable API, solid segmentation, good for SaaS.
- Mistral Large 4 (#9) Excellent for data-driven transactional and lifecycle email automation.
|
| 13 |
Elastic Email |
|
2/10 |
| | | | | | | | 10 | 9 |
- Nemotron 3 Ultra (#9) Very affordable, simple API, decent deliverability, no-frills
|
| 14 |
MailerSend |
|
2/10 |
| 10 | 9 | | | | | | | |
- Gemini 4 Argon (#9) Intuitive interface and collaborative template builders that bridge developers and non-technical teams.
- GPT-6 Luna (#10) Approachable APIs and templates make transactional messaging easy to set up.
|
| 15 |
Emailoctopus |
|
1/10 |
| | | 9 | | | | | | |
|