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Recruitment · head to head

Codility vs Gem

Codility logo

Codility

Recruitment

Technical coding assessment platform priced by annual invite volume, not by seat count alone

From
On request
Rated
-
Full reviewWebsite
Gem logo

Gem

Recruitment

Recruiting CRM and AI sourcing tool that layers onto an existing ATS or replaces it

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Codility pricing is capped by candidate invites per year, not by hiring headcount, so a busy recruiting quarter or hiring surge can exhaust the allowance faster than a company's growth plan anticipated.; Gem pricing outside the small-startup tier is entirely custom and not published, so mid-size and enterprise buyers cannot benchmark cost before a sales call
  • They diverge on capability: Codility covers Coding task library, Gem covers AI sourcing.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Codility and Gem actually diverge.

Attributes where Codility and Gem differ
AttributeCodilityGem
Pricing modelPer year by candidate invite volume, with platform user limits per tierPer user per month, by company size and seat type
PlatformsWebWeb, Chrome Extension

Identical on both: starting price (On request), free tier (No), user rating (Not yet rated), category (Recruitment).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Codility

  • Coding task library
  • Automated scoring
  • Plagiarism detection
  • Live coding interviews
  • ATS integrations
  • Candidate experience reporting

Only in Gem

  • AI sourcing
  • Outreach sequences
  • ATS sync or replace
  • Analytics
  • Talent rediscovery

What people use each for

The jobs each tool is most often brought in to do.

Codility

  • An engineering team with a steady, moderate hiring volume that fits comfortably within the Starter or Scale invite allowancenot Gem
  • A company that wants automated coding assessments integrated directly into an existing applicant tracking systemnot Gem
  • A hiring team concerned about AI-generated or copied solutions wanting built-in plagiarism detectionnot Gem
  • An organisation running live, interviewer-led coding sessions in addition to take-home assessmentsnot Gem

Gem

  • A talent acquisition team that wants sourcing, outreach and pipeline analytics without replacing an existing ATS such as Greenhouse or Workdaynot Codility
  • An early-stage startup under 30 employees that qualifies for Gem's startup discount programme and wants sourcing tooling from day onenot Codility
  • A company evaluating whether to consolidate its recruiting stack by moving off a separate ATS entirely onto Gem All-in-Onenot Codility
  • A recruiting team that wants to resurface past applicants already in their data before opening a new external sourcing campaignnot Codility

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Codility

  • Pricing is capped by candidate invites per year, not by hiring headcount, so a busy recruiting quarter or hiring surge can exhaust the allowance faster than a company's growth plan anticipated.
  • The Starter plan supports only one platform user, making it impractical for any team with more than a single recruiter or hiring manager needing direct access.
  • Annual-only billing on the Starter tier requires a full year's commitment before a company knows whether its actual invite usage matches the plan it bought.
  • As with any automated coding assessment, over-reliance on it as an early filter risks screening out strong candidates who do not perform well under artificial timed test conditions.
  • Its assessment format is squarely aimed at software engineering roles, so it offers no coverage for non-technical or adjacent technical hiring needs that HackerRank's broader question library covers.

Gem

  • Pricing outside the small-startup tier is entirely custom and not published, so mid-size and enterprise buyers cannot benchmark cost before a sales call
  • Choosing Gem All-in-One as an ATS replacement is a much larger migration decision than adding a sourcing layer, and the sales process does not surface that distinction clearly upfront
  • Seat types (standard versus AI-powered) gate which features a given recruiter can use, so a team can under-provision seats and lose access to sourcing features they assumed were included
  • The startup discount programme has eligibility cutoffs by employee count and age of company, so growing past 30 employees or beyond early stage removes the cheaper pricing path
  • Outreach effectiveness depends on email deliverability and candidate response rates that Gem does not control, so ROI varies by how saturated a company's target talent pool already is with recruiter outreach
  • Switching from Gem back to a standalone ATS after adopting All-in-One means re-migrating hiring pipeline data a second time, which is a cost most buyers do not model at signup

Pricing, plan by plan

Codility

On request
  • Starter$1200/year
    • Up to 120 assessment invites per year
    • 1 platform user
    • Annual billing only
  • Scale$500/month
    • Up to 300 assessment invites per year (25 a month)
    • 3 platform users
    • Discount available on annual billing
  • Custom$undefined/year
    • Custom quote
    • Unlimited or high-volume invites
    • Unlimited users, SSO, integrations and dedicated support

Gem

On request
  • Startup (1-10 FTE)$130/month
    • AI sourcing and CRM
    • Analytics
    • Scheduling
  • Gem + Your ATS / All-in-One$undefined/year
    • Custom pricing by FTE count and seat type

Which should you pick?

Choose Codility if

  • You need coding task library.
  • You also want automated scoring.
Codility review

Choose Gem if

  • You need ai sourcing.
  • You work on Web, Chrome Extension.
  • You also want outreach sequences.
Gem review

Questions people ask

Is Codility or Gem better?
Neither clearly leads. Codility starts at On request and Gem at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Codility or Gem?
Codility starts at On request and Gem at On request.
Does Codility or Gem run on more platforms?
Codility runs on Web. Gem runs on Web, Chrome Extension.
What is Codility best used for?
Codility is most often used for an engineering team with a steady, moderate hiring volume that fits comfortably within the starter or scale invite allowance, a company that wants automated coding assessments integrated directly into an existing applicant tracking system, a hiring team concerned about ai-generated or copied solutions wanting built-in plagiarism detection, an organisation running live, interviewer-led coding sessions in addition to take-home assessments. Of those, an engineering team with a steady, moderate hiring volume that fits comfortably within the starter or scale invite allowance and a company that wants automated coding assessments integrated directly into an existing applicant tracking system are not what Gem is typically brought in for.
What can Codility do that Gem cannot?
Codility covers Coding task library, Automated scoring, Plagiarism detection, Live coding interviews. Gem covers AI sourcing, Outreach sequences, ATS sync or replace, Analytics.

Answered from the vendors’ own pages

Codility: What counts against the invite limit?

Each candidate assessment invitation sent counts toward the plan's annual (or monthly, for Scale) invite allowance.

Gem: Do we need to replace our ATS to use Gem?

No, Gem can run alongside an existing ATS purely for sourcing and CRM; Gem All-in-One is a separate option that includes its own ATS.

Codility: What happens if we exceed our invite allowance?

Additional invites beyond the plan limit typically incur per-invite charges or require an upgrade to a higher tier.

Gem: Is there a published price for larger teams?

Only the 1-10 employee startup tier has a public price; larger teams are quoted based on FTE count and seat mix.

Codility: Is there a free tier?

No published free tier exists; all plans require payment, with Starter billed annually only.

Gem: What is the difference between a standard and AI-powered seat?

Standard seats cover core sourcing, email-finding and ATS sync; AI-powered seats add sourcing agents, application review and fraud detection.

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