Is 100Networks a replacement for Greenhouse?

Not necessarily. Greenhouse is a system of record; 100Networks is an AI-native layer that does the recruiting work (screening, interviews, grading, automation). They sync bidirectionally — 100Networks pulls jobs and candidates from Greenhouse and pushes its AI verdict back as activity-feed notes — so most teams run them together.

What's the core difference between Greenhouse and 100Networks?

Greenhouse tracks the hiring process; a human still sources, screens, interviews, and schedules. 100Networks runs that work itself through Pilot, an autonomous co-pilot, with a human approving every action. One is record-keeping, the other is execution.

Does 100Networks integrate with Greenhouse?

Yes — bidirectional sync via the Greenhouse Harvest API, with HMAC-verified webhooks for real-time updates. The 100Networks verdict is written back to the candidate as activity-feed notes, so Greenhouse stays the system of record.

Which should I choose?

If you only need to track and report on a hiring process, a traditional ATS is enough. If you want the screening, interviewing, grading, and follow-ups actually done for you — with a human in the loop — that's what 100Networks adds, alongside the ATS you already run.

100Networks vs Greenhouse: AI-Native Hiring vs a Traditional ATS

Greenhouse and 100Networks solve different problems. Greenhouse is a traditional applicant tracking system (ATS) — a system of record where your team does the sourcing, screening, interviewing, and scheduling. 100Networks is AI-native — an autonomous co-pilot called Pilot does that work for you, with a human approving every action. The practical answer for most teams isn't "either/or": 100Networks syncs bidirectionally with Greenhouse, so you can keep Greenhouse as your record of truth and let Pilot do the heavy lifting on top.

Greenhouse is a genuinely good ATS. It's widely used, it's strong at structured interviews, scorecards, and reporting, and plenty of great teams run their entire hiring on it. The question this post answers isn't "which ATS wins" — it's "what category is each product in, and what changes when the work itself runs inside the tool."

Two different categories

A traditional ATS is record-keeping infrastructure. It stores candidates, moves them through stages, and reports on the pipeline. The actual work — finding people, reading resumes, running interviews, grading take-homes, booking calls, chasing follow-ups — is done by recruiters and hiring managers.

100Networks is built the other way around. The work runs inside the product:

Pilot, an autonomous recruiting co-pilot with 75 specialized tools, operates directly in the recruiter workflow.
It screens resumes, sends AI interviews and take-homes, advances or rejects candidates, proposes interview slots, drafts scorecards, runs background verification, and extends offers.
Every mutating action is staged as a proposed action a recruiter confirms — or lets run and undoes within a 5-minute window. So AI never quietly changes a hiring outcome; a human stays accountable.

That's the difference between a system that records your process and one that runs it.

Side by side

	Traditional ATS (e.g. Greenhouse)	100Networks
Primary job	Track and report on hiring	Run the hiring work, supervised
Resume screening	Manual, recruiter reads each one	AI screening, JD-aligned, seniority-weighted
Interviews	You schedule and run every round	Live AI interviews (coding, system design, behavioral) in one session
Take-homes	Manual review	Rubric-based AI auto-grading
Automation	Rules and templates	Visual n8n-style workflow engine + an autonomous agent
Candidate search	Keyword/boolean	Semantic search over embeddings
Reach	Email	WhatsApp + email + Slack
System of record	Yes	Syncs to your ATS, which stays canonical

You don't have to choose

The most important point: 100Networks is designed to sit on top of Greenhouse, not rip it out.

Bidirectional sync runs over the Greenhouse Harvest API.
100Networks pulls your jobs and candidates, runs AI screening and interviews, and writes the verdict back to Greenhouse as activity-feed notes.
HMAC-verified webhooks keep both sides current in real time.

So your recruiters keep working in Greenhouse if they want to, your reporting stays intact, and Pilot quietly does the screening, interviewing, grading, and follow-ups in the background — surfacing decisions for a human to approve.

When each makes sense

A traditional ATS alone is enough if your bottleneck is tracking — you have the recruiter capacity to do the work and just need structure and reporting.
100Networks is for when the bottleneck is the work itself: too many roles, too many applicants, not enough recruiter hours to screen and interview them all fairly. Pilot's automation compounds across open roles, which is exactly where teams feel the squeeze.

If you're already on Greenhouse, the lowest-risk way to feel the difference is to connect it and let Pilot screen the next batch of applicants on one role — then confirm or undo what it proposes.