Key takeaways
- Instantly is sending infrastructure: unlimited email accounts with warm-up.
- Pebbles Ai offers no sending infrastructure, warm-up or rotation.
- Instantly's lead database comes with waterfall enrichment across several providers.
- Pebbles Ai's assistants write from Company Intel and work in Auto, Plan or Manual mode.
- Lead lists move across as a CSV.
What is the main difference between Pebbles Ai and Instantly
Instantly is built to send cold email at volume, while Pebbles Ai is built to decide who to write to and what to say. Instantly offers unlimited email accounts with warm-up, a B2B leads database the vendor sizes at 450M+, waterfall enrichment and AI agents, on flat monthly plans.
Pebbles Ai's assistants research accounts, find people at the companies you name and write outreach from Company Intel. Emails land as drafts in Gmail or Outlook, so you choose what goes out and when.
Where is Instantly stronger
Instantly is stronger for high-volume sending. Connecting unlimited email accounts and warming them is the core of the product, and Pebbles Ai does neither.
Its lead side adds waterfall enrichment across 5+ providers, which helps fill the gaps one source leaves. An agency running campaigns for several clients at once gets sending and lead data from one vendor.
How does Pebbles Ai work differently
Pebbles Ai works upstream of sending. You describe your ideal customer, an assistant finds matching companies, and Find fresh leads looks for people by role and location at up to ten named companies, each landing in the Pebbles Ai CRM, labelled Beta, with a work email where one is found, a confidence score and a catch-all flag.
The assistants work in Auto, Plan or Manual mode, and the web app starts in Manual, where actions wait for your approval. Replies come back to Smartbox, which handles Gmail and Outlook with more than one inbox per provider and Write with AI replies in Fast, Balanced or Comprehensive mode.
Which teams should choose Instantly and which Pebbles Ai
Choose Instantly if your model is volume: many inboxes, many contacts and constant testing of angles. Choose Pebbles Ai if you write to a smaller set of well-chosen people and want each message grounded in research and your own brand voice.
An illustrative lead generation agency running campaigns for six clients needs Instantly's sending side. A two-person software company courting fifteen named hospital groups needs to understand each one and write well, which is the work Pebbles Ai is built for.
What should you check before switching from Instantly
Check whether sending is the reason you use Instantly, because Pebbles Ai does not offer sending infrastructure, warm-up or rotation. If it is, keep Instantly for sending and consider Pebbles Ai for research, leads and drafts.
- Export your Instantly lead lists as a CSV and import them into the Pebbles Ai CRM.
- Decide which mailboxes you will connect to Pebbles Ai for drafts and replies.
- Check that a work email with a confidence score covers what you used enrichment for.
- Agree who approves actions while the web app runs in Manual mode.
Pebbles Ai and Instantly side by side
How each product approaches the same jobs, in its own terms.
| Pebbles Ai | Instantly | |
|---|---|---|
| Primary job | A workspace of AI assistants for research, leads, outreach drafting, CRM and inboxes | A cold email platform for sending at volume, with leads and AI agents |
| Sending | Drafts saved in Gmail or Outlook; no sending infrastructure or warm-up | Unlimited email accounts with warm-up |
| Finding prospects | Describe your ideal customer, then find people by role and location at up to ten named companies | A B2B leads database the vendor sizes at 450M+ |
| Enrichment | A work email where one is found, a confidence score and a catch-all flag | Waterfall enrichment across 5+ providers |
| AI | Marketing and Strategy assistants in Auto, Plan or Manual mode | AI agents |
| Inboxes | Smartbox for Gmail and Outlook; Socialbox for LinkedIn, WhatsApp, Instagram and Telegram chats | See their site |
| Pricing structure | Per-seat plans with monthly AI credits and leads | Separate Outreach, Leads and bundle plans, flat monthly or annual |
Checked 2 November 2026 on each vendor's public pages. The other product's cells state only what its own site says; where it says nothing on a point, the cell reads See their site.
About Instantly
Cold email sending and lead platform
A cold email platform built for sending at volume across unlimited email accounts with warm-up, plus a B2B lead database, waterfall enrichment and AI agents, on flat monthly plans.
Best for: Agencies and outbound teams sending cold email at scale across many inboxes.
What its own pages say
- Unlimited email accounts and warm-up. Source: Instantly
- A B2B leads database the vendor sizes at 450M+, with waterfall enrichment across 5+ providers. Source: Instantly
- AI agents. Source: Instantly
- Separate Outreach, Leads (credits) and bundle plans, flat monthly or annual, plus VIP and Enterprise. Source: Instantly
Where Instantly is stronger
- High-volume sending across unlimited mailboxes with warm-up.
- Waterfall enrichment across several data providers.
Where Pebbles Ai differs
- One workspace spans research, lead generation, CRM, outreach drafting, two inboxes, assistants, company knowledge, connections and memory, rather than a single point tool.
- Company Intel holds business knowledge and brand voice built from your website, files and pasted text, and the assistants write from it.
- Smartbox works across Gmail and Outlook, with more than one inbox per provider, and Write with AI in Fast, Balanced and Comprehensive modes that use the thread and your brand voice.
- Marketing and Strategy assistants plus the Guider, with Auto, Plan and Manual execution modes; the web app starts in Manual, where actions wait for your approval.
Before you switch
- Lead lists export as CSV into the Pebbles Ai CRM.
- Pebbles Ai does not offer sending infrastructure, warm-up or rotation.
We make Pebbles Ai. Facts about other products come from their own public pages, checked on .
Where Pebbles Ai fits
- CapabilityProspecting & customer recordsFind fresh leads looks for people by role and location at up to ten named companies and adds each to the CRM with a work email where one is found and a confidence score.
- CapabilitySmartboxSmartbox connects Gmail and Outlook, more than one inbox per provider, and writes or refines replies from the thread, the recipients and your brand voice.
- CapabilityAI workspaceThe assistants work in Auto, Plan or Manual mode; the web app starts in Manual, where actions that reach the outside world wait for your approval.
Common questions
Can Pebbles Ai send cold email at volume like Instantly?
No. Pebbles Ai saves emails as drafts in your connected mailbox and offers no sending infrastructure, warm-up or mailbox rotation.
Does Pebbles Ai connect more than one inbox?
Yes. Smartbox connects Gmail and Outlook, with more than one inbox per provider, and outreach drafts land in the connected mailbox.
Can I bring my Instantly leads into Pebbles Ai?
Yes. Export the lead list as a CSV and import it into the Pebbles Ai CRM.
About this page. Written by the Pebbles Ai team for people who run sales, marketing and growth. Last updated .
