Compare/Head to head

CodeSignal vs Lemonsignal

Same facts, side by side: starting price, free tier, MCP, API and what each one is actually built for.

Starting price

CodeSignal

$79/mo

Skills assessments and AI interviewers on a credit meter. Hire Build is $79/mo billed annually, or $99/mo monthly.

Where CodeSignal fits

  • Small teams making first technical hires on Build
  • Growing orgs that need GTM assessments on Grow
  • Companies that want AI interviewers plus live tech screens
  • Enterprises that need SSO, RBAC, and validated content on Pro

Lemonsignal

$299/20 candidates Free trial

AI skills assessment for hiring: candidates do a real task in Claude Code, Claude Cowork, ChatGPT or Codex in the browser, and you get the finished work plus every prompt, command and edit as a session replay. Each candidate gets a role score and six AI skill ratings, each linked to the moment it is based on, and a question to ask in the interview. It is free on 3 candidates; packages start at $299 for 20 candidates and monthly plans at $449.

Where Lemonsignal fits

  • Teams hiring engineers who will code with AI assistants
  • Marketing and analyst roles where AI fluency matters
  • Hiring managers who want evidence of AI skill, not a self-rating

At a glance

DetailCodeSignalLemonsignal
Starting price$79/mo$299/20 candidates
Free tier–No–No
Free trialNot on recordYes
MCP server✓Yes–No
Public API✓Yes–No
Listed underAssessmentsAssessments, AI screening
Capterra4.6 from 48 reviewsNot enough reviews

Where they pull apart

CodeSignal

Stands out: One credit pool for certified assessments and role-based AI interviewers, with Grow adding basic ATS hooks.

Watch out: Build includes 60 annual credits, or 5 a month on monthly billing. Extra credits are $20 each. ATS integrations and API access start on Grow.

Not the right fit for

  • Teams that only need a free coding-practice product
  • Buyers who need ATS integrations on the cheapest Hire plan

Lemonsignal

Stands out: It tests how someone works with AI tools instead of banning them. Every score links to a timestamp in the session, so a hiring manager can watch the moment a candidate caught an AI edit nobody asked for, and the result ends with an interview question about the weakest moment. Tasks cover engineers, marketers and analysts, or you bring a real piece of work from your team.

Watch out: Pricing is per candidate who hands in the task, so screening at volume gets expensive ($10 per extra candidate on monthly plans). Getting started means a 30-minute setup call rather than self-serve signup, unused monthly candidates do not carry over, and it is a new product with no outside reviews yet.

Not the right fit for

  • High volume screening on a tight budget
  • Roles where AI tools are not used on the job

Pros and cons

CodeSignal

  • Public Hire prices with annual 20% off
  • AI interviewers included on Build, not only Pro
  • Hosted MCP server plus API and webhooks
  • Build is light on credits (60/year or 5/month)
  • ATS integrations and API start on Grow
  • Pro plan is quote-only

Lemonsignal

  • Candidates use real AI tools in the browser with nothing to install
  • Full session replay with every prompt
  • Only pay for candidates who hand in the task
  • Free on 3 candidates, no card
  • Per candidate pricing adds up at volume
  • Setup call required to start
  • New product with no outside reviews yet

What each one costs

CodeSignal

$79/mo

Hire Build is $79/mo billed annually ($948/year, 60 credits) or $99/mo billed monthly (5 credits a month). Grow is $479/mo annual or $599/mo monthly. Pro is custom; extra credits are $20 each. Confirm current terms on the vendor site.

Checked 4 Nov 2026

Lemonsignal

$299/20 candidates

Try it free on 3 candidates, no card. Packages are paid once and used within 12 months: $299 for 20 candidates or $599 for 50. Monthly plans are $449/mo for 50 candidates, $799/mo for 100 and $1,399/mo for 200, with extra candidates at $10 each; paying yearly gives 2 months free. A candidate counts only once they hand in the task. Confirm current terms on the vendor site.

Checked 6 Nov 2026

Common questions

Is CodeSignal cheaper than Lemonsignal?
CodeSignal starts lower, at $79/mo against $299/20 candidates for Lemonsignal. That is the entry plan on each side, so the real number depends on seats and the tier you land on.
Can you try CodeSignal or Lemonsignal for free?
Neither carries a free tier on our listing. Lemonsignal offers a free trial.
Does CodeSignal or Lemonsignal have an MCP server?
CodeSignal ships a first party MCP server, so an AI assistant can work the product directly.

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Editorial listings, never paid rankings. Prices checked 4 Nov 2026. Confirm current terms on the vendor site. Spot an error?