A Field Report for VPs of Engineering

Get the AI ROI answer
Jellyfish's AI Impact module
can't give you.

Jellyfish counts Cursor licenses and Copilot seats. That's adoption, not impact. GitClear performs commit-level AI authorship attribution — line by line — so when finance asks "what is AI actually shipping?" you have an answer with receipts.

Same-day setup Published methodology List pricing on the page No 6-week onboarding

What Jellyfish customers say — in their own words, counted.

Source: G2 Pros & Cons review aggregation
Pulled from g2.com/products/jellyfish
36 ×
G2 Review Mentions
"Metrics Issues"
21 ×
G2 Review Mentions
"Complex Configuration"
19 ×
G2 Review Mentions
"Lack of Customization"

"The complexity of the product can be overwhelming."

— Gartner Peer Insights · verified review

"Interpreting some of the more advanced metrics still requires manual context-setting."

— Gartner Peer Insights · verified review
01 The AI ROI Question

Adoption metrics don't survive a CFO meeting. Authorship metrics do.

Every AI Impact dashboard on the market starts by asking the wrong question — "who has a Copilot seat?" — and ends by reporting suggestion-acceptance rates that don't track to anything finance recognizes as output.

The DX team — Jellyfish's most thoughtful competitor in this category — admitted this directly in their Q4 2025 report:

"The percentage of AI-authored code is one of the most talked-about metrics in the industry right now — and also one of the hardest to measure accurately… we've also introduced a self-reported measure to establish a consistent baseline."

— DX, Q4 2025 AI Impact Report

"Self-reported" is the tell. When the leading vendor concedes the metric is too hard to measure and falls back to surveys, the question for buyers becomes: who actually measured it?

Jellyfish · AI Impact Module

License & seat telemetry. Suggestion-acceptance rates.

Counts how many engineers have Copilot or Cursor seats. Pulls suggestion-acceptance percentages from IDE plugins. Tells you adoption is up.

It does not — and structurally cannot — tell you which lines of merged code came from an AI tool versus a human.

→ Measures intent to use, not output produced
GitClear · Diff Delta Attribution

Line-level AI authorship. Computed from the diff. Per commit.

GitClear analyzes every merged line and classifies authorship — AI-assisted vs human — using a published, defensible methodology built on 211M lines of research.

payments_service.rb · commit a3f2e1c
+42 ▮▮▮▮▮▮▮▮▮▮▮▮ AI-assisted (87%)
+11 ▮▮▮ Human-authored
9 ▮ Boilerplate / churn
→ The answer that survives the CFO meeting

And about that "21 mentions of complex configuration."

A side-by-side of the actual setup paths. We're not editorializing — these are the steps each tool requires before a metric appears on a dashboard.

GitClear · Setup
From signup to dashboard
Same session · 4 steps · self-serve
  1. 01 Sign up with GitHub / GitLab / Bitbucket OAuth ~30s
  2. 02 Select repos to connect ~1m
  3. 03 GitClear backfills 90 days of history ~10m
  4. 04 Diff Delta + AI attribution dashboard live live
Time to first metric Same day
Jellyfish · Setup
From signed contract to dashboard
Multi-week onboarding · per G2 reviewers
  1. 01 Sales call → SOW → procurement → DPA 2–4 wks
  2. 02 CSM kickoff, scoping, Jira/Linear field mapping 1–2 wks
  3. 03 Allocations & investment categories taxonomy 1–2 wks
  4. 04 Repo ingestion, signal calibration, QA passes 1–2 wks
  5. 05 Dashboard go-live, exec readout, training +1 wk
Time to first metric 6–11 weeks
02 Time to Value

Six weeks of onboarding is not a feature.

Day 0 · GitClear
Repo connected.
OAuth handshake; backfill begins.
Day 0 · GitClear
Dashboard populated.
Diff Delta, AI attribution, DORA metrics live.
Week 3 · Jellyfish
Kickoff complete.
Field mappings still being calibrated.
Week 6 · Jellyfish
Allocations modeled.
QA passes; signals being validated.
Week 8+ · Jellyfish
First exec readout.
Two months in. First report to leadership.
By the time a Jellyfish customer sees their first real dashboard, a GitClear customer has already completed two full sprint retros using GitClear data.
Time-to-first-insight · receipt
GitClear value_status_win Same-day
Jellyfish (median, per G2) value_status_lose 6–11 weeks
Sales / procurement layer value_status_lose 2–4 wks
Allocations taxonomy build value_status_lose 1–2 wks
CSM-required setup value_status_win None
Self-serve repo connect value_status_win Yes
03 Defensibility

When the CFO asks "is this metric trustworthy?" — what do you point at?

This is the question that quietly kills engineering analytics rollouts. A dashboard goes up, leadership asks how the numbers are computed, and the answer comes back: "proprietary signals."

That answer doesn't survive a finance review. It doesn't survive a board deck. And it doesn't survive the moment a skeptical staff engineer pokes at one of the charts.

GitClear publishes its Diff Delta methodology, its AI authorship classification rules, and the 211M-line dataset the model was calibrated against. The math is in the open. Engineers can audit it. Finance can trust it. Board members can cite it.

This is not a competitive accident. Jellyfish's most negative G2 reviews — 36 mentions of "metrics issues" — cluster precisely here: numbers that the customer's own engineers couldn't defend in their own building.

# GitClear Diff Delta — published formula sketch
cognitive_load = f(added, deleted, churned, refactored)
ai_authorship = classifier(diff_features, commit_signature, model_provenance)
noise_filter = remove(boilerplate, autoformat, generated_files)
# Auditable. Reproducible. Cited.
"Where did this number come from?"
Answer with GitClear

"Here's the published methodology paper, the diff features used, and the 211M-line dataset it was calibrated against."

Answer with Jellyfish

"It's based on proprietary allocations modeling. I'd need to loop in our CSM to walk through the signal definitions."

04 Pricing Honesty

Our pricing is on the page. Theirs is on a sales call.

GitClear · Published
Elite plan
Listed publicly · per-seat · monthly
$ 24.95 /dev/mo

Volume discounts published. Annual prepay discount published. No "contact sales" wall.

  • Diff Delta + AI authorship attribution
  • DORA + cycle-time analytics
  • Self-serve repo connect, same-day
  • Published methodology — fully auditable
  • No required CSM, no onboarding fees
Jellyfish · "Request a quote"
Enterprise (only)
Sales-gated · annual contract · custom
~$ 95K /yr ACV

Average contract value per Sacra SRC

  • No public pricing — sales call required
  • Annual contract required up front
  • CSM-led implementation (per G2 reviews)
  • 6–11 weeks before first dashboard
  • "Proprietary" allocations methodology

An engineering team of 40 runs on GitClear for roughly $14K/year. The Jellyfish average is ~$95K/year. The difference funds an entire senior engineering hire.

Connect a repo. See your AI ROI today.

No sales call. No SOW. No six-week onboarding. Just OAuth, a repo, and the dashboard you actually came here for.

Same-day setup Published methodology $29/dev/month