AI Agent Index
ByHeather MacAvelia·Independently reviewed·Published Mar 18, 2026·Updated Jul 5, 2026
Independently verified against live vendor data on Jul 5, 2026.

AI email send-time optimization for HubSpot and Marketo. Analyzes each contact for optimal delivery time, staggers sends accordingly. HubSpot from $80/mo, Marketo from $450/mo.

How we scored it

Autonomy

4/5

Integrations

2/5

Pricing clarity

5/5

Evidence

3/5

Setup

5/5

The facts

Seventh Sense is an AI email delivery optimization system built exclusively for HubSpot and Marketo users. The product solves a single, highly specific problem: it does not write emails, manage content, or run sequences. Instead, it analyzes each contact in a database individually and determines the optimal send time and frequency to maximize engagement. The AI builds a behavioral profile for each contact based on historical open and click patterns, then staggers email delivery to reach each recipient at their personal peak engagement window. Telepath Data, Inc. has operated Seventh Sense since 2014, making it one of the longest-running AI email optimization tools in its niche. The product is used by B2B marketing teams running HubSpot Pro or Enterprise and Marketo Engage at companies sending high-volume email programs to large contact databases. Integration depth is deliberately narrow by design. HubSpot and Marketo are the only two supported platforms. For HubSpot, the integration syncs contact engagement history bidirectionally: historical open and click data flows into Seventh Sense to build per-contact models, and send-time decisions flow back into HubSpot's sending infrastructure. For Marketo, the same model applies using Marketo Engage as the underlying ESP. No third-party platform connection, Zapier integration, or API endpoint for other ESPs exists. No MCP server support as of July 2026. Teams not on HubSpot or Marketo cannot use Seventh Sense under any circumstance. Pricing uses a single Business tier with contact-based scaling. HubSpot pricing starts at $80/month billed annually ($960/year) for 5,000 marketing contacts at $0.192 per contact per year, stair-stepped in 5,000-contact increments. At 25,000 contacts the price scales to $180/month ($2,160/year at $0.086/contact/year). Enterprise tier starts at 150,000 marketing contacts with custom pricing, SSO, dedicated CSM, and custom MSA/DPA/SLA. Marketo pricing starts at $450/month for 50,000 leads. The subscription is additive to existing HubSpot or Marketo platform costs. A free trial is available for both platforms. All four AI capabilities are included in every Business plan: AI Orchestration, AI Send-Time Optimization, AI Audience Recycling, and AI-Surfaced Insights. Seventh Sense is not for teams not on HubSpot or Marketo. Salesforce Marketing Cloud, Klaviyo AI, Mailchimp, ActiveCampaign, and all other ESP users cannot use this product. Teams expecting content improvements or subject line optimization should look elsewhere: Jasper (from $49/month) for AI content generation or Persado for language optimization. Teams wanting a full email marketing intelligence suite should evaluate HubSpot Marketing Hub's native AI features before adding a specialist send-time layer. Teams with fewer than 5,000 HubSpot marketing contacts are below the minimum threshold for the pricing calculator. As of Q3 2026, Seventh Sense has expanded from send-time optimization to four branded AI capabilities: AI Orchestration (caps, blackouts, priority lanes, cross-campaign coordination), AI Send-Time Optimization (per-person, updated in real time), AI Audience Recycling (automated suppression and reactivation), and AI-Surfaced Insights (per-inbox-provider performance and audience health). The platform orchestrates 500M+ personalized emails monthly. G2 profile shows 18 reviews at 4.8/5; the profile is unclaimed. Seventh Sense holds SOC 2 Type II certification. GDPR compliance confirmed via privacy policy. No MCP server support as of July 2026.

Pricing

subscription · $80/mo

View pricing ↗

Segment

b2b

Setup

easy

Verified

Jul 5, 2026

Transparency

Public

Contract

Annual Only

Data training

Not Disclosed

Autonomy

Autonomous

Capabilities

email-optimizationpersonalizationcampaign-automationdata-analysisreporting

Pros & Limitations

Editorial assessment

Pros

  • Individual send-time personalization at the contact level. Delivers each email at the precise engagement window for that specific recipient rather than a single blast time for the entire list, without any manual scheduling intervention.
  • Documented open rate lift from 4-5% to 18-37% in customer case studies. One of the most consistently measurable ROI improvements in email marketing tooling, with lift attributable to timing precision rather than content changes.
  • Deep HubSpot and Marketo integration with no migration required. Installs on top of existing setup and inherits existing workflows and reporting without disrupting current email operations or requiring list migration.

Limitations

  • HubSpot and Marketo only. Teams on Salesforce Marketing Cloud, Klaviyo AI, ActiveCampaign, Mailchimp, or any other ESP cannot use Seventh Sense regardless of database size or budget.
  • Optimizes timing only and does not improve email content, subject lines, or list quality. If emails are poorly written or the list is stale, Seventh Sense will not fix underlying engagement problems.
  • Pricing scales with contact database size. Teams with large lists face significant cost increases as the database grows, with pricing for 150,000+ contacts shifting to custom enterprise quotes requiring a sales conversation.

Technical Details

Deployment
web
Model architectureProprietary
Avg setup time5 minutes to connect HubSpot or Marketo. Optimal send times generated within 24 hours of first data sync.
Autonomous rateFour AI capabilities run fully autonomously: AI Orchestration manages caps, blackouts, and cross-campaign coordination; AI Send-Time Optimization schedules every email per contact; AI Audience Recycling handles automated suppression and reactivation; AI-Surfaced Insights surfaces per-inbox-provider performance.
Integrations
HubSpotMarketo
Security
SOC 2 Type IIGDPR

Similar agents

Rating

3.3/ 5

Editorial score

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Recognition

Transparent PricingListed 2026
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Industries

B2BSaaSEnterpriseSMBAgencies

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