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GONATURELLE

Predictable pricing for continuous agent evaluation.

Pay for eval runs and seats, not for tokens you cannot forecast. A HIPAA BAA comes with every plan.

14-day free production trial with 5,000 runs. No card.

Developer

For seed-stage teams putting their first regulated agent under test.

$499/ month

per month, billed monthly

Start free trial
  • 50,000 eval runs / month
  • 2 vertical benchmark packs
  • 3 seats
  • Python and TypeScript SDK
  • Trajectory capture and tool-call assertions
  • GitHub Actions, GitLab CI and CircleCI gates
  • PR comment bot with regression diffs
  • Calibrated judges for your two packs
  • Bring your own test cases (BYOD)
  • HIPAA BAA available
  • Email support, 1 business day

Scale

Most teams start here

For Series A to C teams running several agents through CI every day.

$1,899/ month

per month, billed monthly

Start free trial
  • 250,000 eval runs / month
  • All vertical benchmark packs
  • 10 seats
  • Everything in Developer
  • Synthetic edge-case injector and perturbation suites
  • Trajectory diff timeline across prompt versions
  • Multi-judge consensus ensembles
  • Cost and latency drift tracking
  • Compliance changelog exports (PDF, JSON)
  • SAML SSO
  • Shared Slack channel, 4-hour response

Enterprise

For health systems, banks and insurers with model-risk and audit obligations.

Custom

annual contract, typically $35k to $120k per year

Book a technical demo
  • Custom run volume
  • Custom golden datasets curated with domain experts
  • Unlimited seats
  • Everything in Scale
  • Dedicated single-tenant VPC (AWS, GCP, Azure) or air-gapped Kubernetes
  • EU AI Act Annex IV, FDA GMLP and bank model-risk report templates
  • SHA-256 signed run manifests and evidence retention policies
  • SCIM provisioning and fine-grained RBAC
  • 99.9% uptime SLA
  • Named solutions architect and regulatory scientist
Overage
$6 per 1,000 runs
Extra pack on Developer
$250 / month
Extra seat
$49 / month

Every feature, side by side.

32 rows across usage, evaluation, CI gates, compliance and support. Enterprise adds deployment control and expert-curated datasets on top of Scale.

GONATURELLE plan comparison
FeatureDeveloper $499/moScale $1,899/moEnterprise Annual contract
Usage and seats
Eval runs included per monthOne run is one case scored by the full judge ensemble50,000250,000Custom volume
Overage per 1,000 runs$6$6Contracted rate
Vertical benchmark packs2 packsAll packsAll packs + custom
Additional pack$250 / monthIncludedIncluded
Seats included310Unlimited
Additional seat$49 / month$49 / monthIncluded
Parallel sandboxed runnersUpper bound for max_concurrency per suite1050Custom
Run history retention30 days1 yearYour retention policy
Evaluation engine
Bring your own cases (JSONL, CSV, traces)De-identified on ingest
Trajectory capture and tool-call schema assertions
Sequence, boundary and loop constraints
Calibrated judges with published kappaYour 2 packs
Multi-judge consensus ensembles
Synthetic edge-case injector
Perturbation and prompt-injection suites
Trajectory diff timeline across prompt versions
Custom golden datasets curated with domain experts
CI/CD gates
GitHub Actions, GitLab CI and CircleCI
PR comment bot with regression diffs
Fast-path gate (20 critical cases per push)
Sharded full-suite runs on merge or nightly
Cost and latency drift tracking
Compliance and security
HIPAA BAA
SOC 2 Type II report under NDA
Compliance changelog exports (PDF, JSON)
Annex IV, GMLP and SR 11-7 report templates
SHA-256 signed run manifests
SAML SSO (Okta, Microsoft Entra ID)
SCIM provisioning and fine-grained RBAC
DeploymentUS or India cloudUS or India cloudVPC or air-gapped
Support
Support channelEmail, 1 business dayShared Slack, 4 hoursNamed solutions architect
Uptime SLA99.9%

Why a homegrown harness with an uncalibrated judge costs about 3x more.

The scripts are cheap to start. The cost shows up every week after: fixtures drift, rubrics get rewritten by whoever touched them last, and a single-prompt judge raises false alarms that an engineer has to read case by case. In our calibration study an uncalibrated single-prompt judge reached a Cohen’s kappa of 0.42 against expert consensus, against 0.87 for a calibrated ensemble.

  • Hours priced at $150, the fully loaded engineer hour we use in every worked example.
  • One team of about ten engineers running two to four agents; scale the hours to your own team.
  • Judge model API spend is left out of both sides: on DIY it is billed by your model provider at its own rates, and GONATURELLE runs include judge inference.

Kappa figures: GONATURELLE calibration study, 2026 (6,400 double-annotated cases). Monthly totals: $15,000 vs $4,899.

DIY scripts + uncalibrated judge$15,000 / moGONATURELLE Scale$4,899 / mo3.1x lower
Maintain harness scripts and fixtures40 h = $6,000Hand-label outputs and update rubrics30 h = $4,500Triage false alarms from an uncalibrated judge30 h = $4,500GONATURELLE Scale, list price$1,899Review gated regressions and baselines20 h = $3,000
$9001 caught$1,8002 caught$2,7003 caught$3,6004 caught$1,899$1,579
Scale, monthly billing Scale, annual billing (per month) Covers the monthly price

Break-even is about two caught regressions a month.

Debugging one production prompt regression
6 h x $150 = $900
Two regressions caught in CI per month
2 x $900 = $1,800
Scale, billed monthly
$1,899: 95% covered
Scale, billed annually
$1,579/mo: fully covered
Third regression caught
$2,700, above either price

This counts engineering time only. It leaves out what a regression costs once it reaches patients, borrowers or claimants: remediation, notices, and exposure such as EU AI Act fines of up to €15M or 3% of worldwide turnover for high-risk obligations.

Calculate how many engineering hours your team spends on manual prompt regression testingTeam size, release cadence and vertical in; annual QA cost, risk-weighted exposure and payback period out.Open calculator

Pricing questions

What happens if we go over our monthly eval runs?

Runs keep going; nothing is throttled mid-gate. Usage above your plan is billed at $6 per 1,000 runs on Developer and Scale, metered in blocks of 1,000 and itemised on the next invoice. You get an email at 80% and 100% of the included volume, and workspace admins can set a hard monthly cap that pauses full-suite runs while keeping fast-path gates alive.

How much does custom golden dataset curation cost?

Custom curation is scoped inside an Enterprise contract, not sold by the case. Scope depends on case count, workflow depth (single turn or multi-step trajectories) and reviewer credentials (MD, JD, CPA, actuary or former examiner). Every custom pack is double-annotated, adjudicated and delivered with its inter-annotator agreement, and you own the cases.

How is VPC or on-prem deployment priced?

Dedicated single-tenant VPC (AWS, GCP, Azure) and self-hosted air-gapped Kubernetes are Enterprise options on an annual contract, typically $35k to $120k per year depending on run volume, deployment model, custom datasets and support level. Your cloud compute and any model inference inside your account are billed by your provider, not by GONATURELLE.

Are there concurrency limits?

Developer runs up to 10 parallel sandboxed runners per suite and Scale up to 50; Enterprise limits are set by your contract or by your own cluster on self-hosted deployments. The SDK's max_concurrency argument is capped at your plan limit. Fast-path gates are scheduled ahead of nightly full suites so a large backfill never delays a PR check.

What is included in the 14-day free trial?

14 days of the Scale feature set with 5,000 eval runs, every vertical pack and the GitHub Action. No card is required. At the end of the trial your suites, baselines and run history stay in the workspace; pick a plan to keep gates running.

Who counts as a seat?

Anyone who signs in to the workspace: engineers, clinical or compliance reviewers and admins. CI service accounts and PR bot identities are free. Developer includes 3 seats and Scale 10; extra seats are $49 per month. Read-only links to signed reports can be shared with auditors without a seat.

How much do we save with annual billing?

Annual billing is $415 per month for Developer instead of $499 and $1,579 per month for Scale instead of $1,899, about 17% off, invoiced once a year. Overage and add-ons are still billed monthly in arrears.

Is a HIPAA Business Associate Agreement available on every plan?

Yes. We sign a BAA on Developer, Scale and Enterprise before you upload any PHI-bearing test case. Inputs, outputs and traces are encrypted with AES-256 at rest and TLS 1.2+ in transit, stored in the region you choose, and never used to train models. The BAA covers GONATURELLE as a testing service; it does not make your production agent HIPAA compliant on its own.

Procurement questions, security reviews or a custom quote: talk to sales or email sales@gonaturelle.si.

“It paid for itself in week two. The gate blocked a prompt change that dropped the member-verification call from our prior-auth agent, two hours before the release train.”

CTCTOSeries A utilization-management platform, 22 engineers, Scale plan

Run your first gated suite this week.

14-day free production trial with 5,000 eval runs and every vertical pack. No card required.