Harvey AI vs CoCounsel, honestly

One is enterprise legal AI sold by contract; the other is Westlaw’s assistant sold per seat. Here’s the real comparison — and the answer nobody else gives you if you’re a small firm: it might be neither.

The short answer: large firm building AI into workflows → Harvey (enterprise contract, reported ~$1,200/user/mo, seat minimums). Firm that already pays for Westlaw → CoCounsel ($75–$500/user/mo, published tiers). Solo or small firm → usually neither first: pair a self-serve research tool with BeforeNine ($99/mo) to run the practice itself.

Harvey vs CoCounsel at a glance

Harvey AI

CoCounsel

Built by

Harvey (backed by GIC, Sequoia, a16z)

Thomson Reuters (Westlaw)

Core strength

Custom agents for enterprise legal workflows

Research grounded in Westlaw content

Reported pricing

~$1,200/user/mo, enterprise contract

$75–$500/user/mo published tiers

Seat minimums

Reportedly ~25–50 seats

None published; sold per user

Self-serve signup

Partly (sales-assisted for full suite)

Free trial

Limited/varies

Best for

AmLaw 100, enterprise legal, in-house at scale

Firms already paying for Westlaw

Small-firm fit

Generally can’t buy it

Buyable, research-focused only

Pricing per public reporting and published tiers as of 2026; confirm with each vendor. BeforeNine is not affiliated with or endorsed by Harvey or Thomson Reuters.

The question under the question

Most people comparing Harvey and CoCounsel are really asking: “what AI should my firm buy?” If you’re a large firm, compare away — both are excellent at what they do. If you’re a 1–10 person firm, the honest answer is that both are research-and-drafting tools, and your bigger constraint is usually operational: the unanswered client email, the deadline nobody’s watching, the intake that sat overnight. Fix that first — it’s cheaper and it compounds daily.

BeforeNine is that fix: inbox triage, deadline early-warning, matter prep and drafted client replies inside your Gmail and Calendar — approval-gated, $99/mo, self-serve, free trial. Not a research engine; the back office around whichever research tool you pick.

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Questions, answered plainly.

Which is better, Harvey AI or CoCounsel?

Different jobs. Harvey is enterprise legal AI — custom agents for due diligence, contract work and review, sold by enterprise contract at reported ~$1,200/user/month with seat minimums. CoCounsel is Thomson Reuters’ assistant built on Westlaw, with published tiers from $75 to $500 per user per month. Big firm building AI workflows: Harvey. Firm that lives in Westlaw: CoCounsel.

Which is cheaper, Harvey or CoCounsel?

CoCounsel, by a wide margin for small teams. CoCounsel publishes per-user tiers ($75–$500/user/mo) with no reported seat minimums. Harvey is quote-only, reportedly ~$1,200/user/month with 25–50 seat minimums on annual terms — an effective six-figure floor.

Can a small firm buy Harvey or CoCounsel?

CoCounsel: yes — it’s sold per user. Harvey: generally no — seat minimums and enterprise-only sales exclude most solo and small firms.

What if I’m a solo or small firm — should I buy either?

Often neither is the right first purchase. Both are research/drafting tools; in a 1–10 person firm the bigger time sink is usually operations — the inbox, deadlines, client follow-ups, matter prep. A common small-firm stack: a self-serve research tool when you need one (Paxton, Spellbook for contracts, or CoCounsel if you already have Westlaw) plus BeforeNine at $99/mo to run the back office. See the full list of Harvey AI alternatives.

Whichever you pick, someone still has to run the firm.

$99/mo. Free for a week. No card, no contract, no demo.

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