GTM Flow vs Zero: two AI CRMs for small sales teams, compared honestly

A note on transparency. This comparison is written by the GTM Flow team, so read it knowing one of the two products is ours. Everything we say about Zero comes from its own website (zero.inc), checked on 23 October 2026, and every source is linked at the end. Where Zero's site does not say something, we say that instead of guessing.

Zero's model is a seat plus a credit meter. The seat buys the CRM, the sequencer, the agents and access to the lead database; credits pay for the data you pull out of it and for the AI steps your agents run. The 14-day trial includes 2,000 credits, and the pricing page says credits double in your first month.

GTM Flow does the opposite on purpose: one planned price per seat, with the CRM, all four channels and the Copilot in every plan, and nothing counted per email, per LinkedIn step, per call or per AI action. Plans differ in Copilot requests (500, 1,000 or 3,000 a month) and seats. The full breakdown is on the pricing page.

Which model costs less depends on how you work. If you pull hundreds of verified contacts a month from a database, Zero's credits buy you data GTM Flow does not sell at all. If you already have your lists and mostly need to work them across channels, a flat seat is easier to forecast.

• You can start today. A 14-day trial with no credit card and 2,000 credits, then Pro self-serve. GTM Flow has no self-serve sign-up: you join the waitlist.
• Its own lead database. Zero lists 350M+ contacts with verified data and unlimited searches, so you can build lists by ICP and buying signals without a separate data tool. GTM Flow has no contact database of its own.
• API, MCP and agents you configure. Pro includes full access to agent context, an MCP server and an API, plus agents with triggers, schedules, research and actions, and a Slack agent. GTM Flow has no public API or MCP server for customers yet.
• Microsoft and more integrations. Zero connects Outlook and Outlook Calendar, notetakers such as Fathom, Granola and Fireflies.ai, support tools, Stripe and PostHog, and keeps a two-way sync with HubSpot. GTM Flow does not support Microsoft 365.
• Migration help. Zero migrates from HubSpot, Attio, Pipedrive, Affinity and CSV, and Scale adds white-glove onboarding. GTM Flow imports CSV files only.
• Funding and runway. Zero raised a $2.7M pre-seed led by 20VC in December 2024 and a $10.3M seed led by Primary Venture Partners on 15 September 2026. GTM Flow has announced no funding.

• WhatsApp as a channel. GTM Flow puts WhatsApp on the company and contact record and as a sequence step with its own daily cap, only for people who gave you their number and permission. Zero's sequencer covers email and LinkedIn; its site shows WhatsApp messages in the activity timeline but does not list it as a sequence channel. Our WhatsApp CRM guide explains the rules.
• Four channels in one sequence. Email from your own mailboxes, LinkedIn steps with per-profile limits (daily cap, three-week ramp, pending invitations) or as manual tasks, WhatsApp and calls, in one cadence that stops when someone replies. See how prospecting works.
• No credit meter. Sends, LinkedIn steps, calls and AI actions are not counted. You plan one number per seat.
• Spanish. The interface is in English and Spanish, and the team behind it sells in Spain every day. Zero's site does not mention languages.
• A plan for one person. Solo is a planned €39 a month for a founder who sells alone. Zero has one self-serve plan, Pro, priced per seat.

Calls are close to a draw. Zero has a built-in dialer and its agents read call transcripts to create or update deals. GTM Flow calls from the browser with recording, transcription and automatic notes, and its agents read every reply and every call to create the task and stop the cadence. The difference is cost, not capability: in GTM Flow none of it uses credits.

A note on LinkedIn: neither tool should be read as a way to bypass LinkedIn's own limits. In GTM Flow each profile has a daily cap and a ramp-up, and any step can be done by hand instead. The multichannel outreach CRM guide covers the rules each channel has to respect.

1. Do you need to buy now? If yes, Zero. GTM Flow opens in waitlist order.
2. Where do your contacts come from? If you need a database to find them, Zero includes one. If you bring them from your own lists, events or inbound, that part of Zero's price buys you little.
3. Which channels answer? If your buyers reply on WhatsApp, GTM Flow. If email and LinkedIn are enough, both work.
4. How do you want to pay? Seat plus credits (Zero) or a flat seat with no meter (GTM Flow).
5. Which tools must it connect to? Outlook, HubSpot sync, an API or MCP point to Zero today.

If you are weighing more options, our Attio alternatives comparison covers the other new CRMs, the AI GTM platforms guide covers the wider category, and the comparisons page lists every tool we compare GTM Flow with.