SAASPOCALYPSEcase · head-to-head
wedge comparison
subjects of investigation

grammarly.comvsharvey.ai

which is stronger?

clone time
8 weeks
contested

grammarly.com

AI writing assistant & grammar checker

47/ 100
wedge scorefull report ↗
clone time
10 weeks
contested

harvey.ai

AI platform for legal professionals

59/ 100
wedge scorefull report ↗
moat

how deep is each moat.

grammarly.com · aggregate
5.3/10real moat
moat delta-1.2
harvey.ai · aggregate
4.1/10shallow moat
5.0
capital±0
5.0
6.0
technical-3.0 →
3.0
2.0
network±0
2.0
4.0
switching+1.0 →
5.0
7.0
data-3.0 →
4.0
1.0
regulatory+4.0 →
5.0
8.0
distribution-4.7 →
3.3
floor

cost + time, side by side.

monthly floorgrammarly.com wins
grammarly.com
$24 + usage
harvey.ai
$47 + usage
delta −$23grammarly.com costs less per month to keep the lights on.
time to clonegrammarly.com wins
grammarly.com
8 weeks
harvey.ai
10 weeks
8 weeks vs. 10 weeks.
overlap

where they fight, where they don't.

features only one ships, plus the small middle they share.
only grammarly.com · 33
frontend cloud platformintegrationsrich text editor
shared · 33
cloud file storagellm inferencetransactional email
only harvey.ai · 88
audit logversion history & creative timelinegdpr complianceocrretrieval-augmented generationsocial loginsso (saml/oidc)user data storage
stack

what they're built on.

shared infra and the differentiating bits.
only grammarly.com · 44
Cloudflare PagesCloudFrontSupabase AuthTiptap
shared infra · 99
AnthropicCloudflareNext.jsOpenAICloudflare R2ResendSentrySupabaseVercel
only harvey.ai · 11
Postgres
the verdict
ATTACK HARVEY FIRST

same comparison surface, two different walls. give the harvey attack a month. circle back to grammarly only if you genuinely need what it does that the other doesn't.

the case
shallower moatsmaller stack
read the harvey report →
full reportcontested · 47
→ read the grammarly.com report
full reportcontested · 59
→ read the harvey.ai report