A3 · Comparison · FAQPage schema
PLG vs Sales-Led Growth
At a glance
| Dimension | PLG | SLG |
|---|---|---|
| Primary path | Self-service evaluation and purchase | Human-assisted evaluation and purchase |
| Buyer constraints | User can activate and purchase without substantial coordination | Stakeholders, integration or contracting need coordination |
| Costs to include | Product growth, free users, onboarding, service and support | Acquisition labor, tools, commissions, evaluation and support |
| Price units | Report annual ACV or monthly price explicitly | Same convention; no universal price cutoff |
| Capacity | Product/service resources and support | Sales, solution and implementation resources |
| Outcome | Paid activation and retained contribution | Accepted paid outcomes and retained contribution |
| Hybrid decision | Test assistance for eligible product users | Use assistance where incremental contribution justifies cost |
| Forecast limit | No guaranteed virality or zero marginal cost | No guaranteed linear headcount-to-revenue relationship |
When to use PLG
Use self-service when eligible users can activate, evaluate and purchase through the product. Include onboarding, free-user service, inference, support and product-growth investment in the economic comparison. Test assistance for users whose constraints differ.
When to use SLG
Use sales assistance when buyer coordination, integration, evaluation or contracting requires it and expected incremental contribution justifies the added cost. A high annual contract value alone does not require a particular motion, and sales headcount alone does not guarantee predictable output.
Trade-offs
PLG shifts work into product, onboarding and service; sales assistance adds labor, coordination and possible delay. Neither has a guaranteed CAC or conversion advantage. Free-user costs can be material, especially for AI products. PQLs identify a defined product-behavior segment, not the causal effect of contacting it. Users who activate may already be more likely to buy. Test assistance among comparable eligible accounts, measure accepted paid outcomes and contribution, and track contamination across accounts. Hybrid routing needs explicit eligibility, ownership and capacity. Compare incremental outcomes under feasible routing policies rather than multiplying a chain of unverified conversion rates.
Frequently asked questions
What is a PQL?
A product-qualified lead meets a defined usage or activation criterion. Validate predictive performance on held-out data, and evaluate sales assistance separately; prediction of purchase is not the treatment effect of outreach.
Can enterprise buyers use self-service?
Yes, a team can adopt independently while organization-wide use needs assistance. Routing depends on authority, procurement, security, integration and support constraints.
What payback is acceptable?
Set a policy using contribution, uncertainty, runway and customer/cash timing. Historical motion-specific bands are heuristics; neither contract length nor a universal month limit determines the decision.
How can PLG readiness be evaluated?
Measure whether eligible users reach a defined valuable outcome, can purchase, and remain economically worthwhile. Inspect failure reasons and compare feasible product or assistance changes.
How should staffing be planned?
Estimate workload, capacity and accepted outcomes per staffed period for your motion. ARR per rep is a descriptive ratio affected by routing and segment, not a universal hiring rule.
Where this sits in the GTM World Model
Motion selection is conditional on buyer constraints, service costs, feasible capacity and incremental contribution. Monthly constant-contribution payback is CAC/c; annual ACV must be divided by 12 before reporting months. No universal PLG cost saving or ACV cutoff is used.
How to cite this
@misc{shalvi_gtm_plg_vs_sales_led_growth_2026,
author = {Singh, Shalvi},
title = {PLG vs Sales-Led Growth — GTM World Model Comparison},
year = {2026},
url = {https://shalvisingh.com/gtm/vs/plg-vs-sales-led-growth}
} Singh, Shalvi. "PLG vs Sales-Led Growth — GTM World Model Comparison." shalvisingh.com, 2026. https://shalvisingh.com/gtm/vs/plg-vs-sales-led-growth