RuntimeAI sells the evaluation layer — multi-turn scenarios, deterministic rubrics, scorecards, and model comparison — not raw tokens. Start free with Editor / MCP (CLI + Cursor MCP), batch via API, or gate PRs with vantage-core. The hosted trial is capped to budget models so you can prove the method; paid plans unlock the full catalog for the check-ride that drives a real production decision.
The model in one line
Free proves the method. Paid runs the decision.
On the hosted trial you evaluate on the 5 lowest-cost OpenRouter tiers — enough to
confirm the rubric is sound and your PM can read the scorecard. We subsidize inference on those budget
models only, because we can’t give away frontier tokens for free. When you need to compare the
models you actually ship — Claude, GPT-4-class, and the rest of the catalog — that’s a paid plan.
Prefer to keep everything local? vantage-core runs any model you want,
billed to your provider keys — always free, always open-source.
Preflight vs platform subscription
These are different bills for different moments. Preflight scopes proof for one decision
before you ship; a platform subscription powers ongoing eval volume in the API, Console, and CI.
Browser Preflight
Per decision · open question → check-ride
One test flight per use-case decision — priced in the stakes calculator (typically single-digit to low hundreds per decision by depth).
Portfolio view: monthly preflight total vs modeled wrong-model exposure — illustrative, not ROI (how to read it).
No API key for scenario draft, cost forecast, or rubric scoring.
Live model search on Preflight uses a RuntimeAI-sponsored batch cap ($0.250 per search) on budget-fit models.
Rule of thumb: Preflight when you are picking a model for a new workflow. Subscribe when you are
running eval volume every sprint — batch shortlists, drift monitoring, or CI gates on production candidates.
Trial vs. paid
Trial free
Starter $499/mo
Team $1,999/mo
Included eval runs
~20 compare runs
1,000 / mo
5,000 / mo
Overage
—
$2.50 / eval run
$1.75 / eval run
Seats
1
2
10
Models
5 lowest-cost tiers
Full OpenRouter catalog
Full catalog
Compare 2 models
API · budget tiers
Any model
Any model
Runs — batch sweeps
Budget models, capped
Any model, higher limits
+ team seats, SSO
API access
Budget models
Full catalog
+ higher concurrency
Custom scenarios
—
✓
+ private library
Inference
Subsidized (cheap tiers)
Pass-through at OpenRouter rates
Pass-through at OpenRouter rates
Platform fee
$0
Included in subscription
Included in subscription
Public benchmarks
✓
✓
✓
CI/CD (vantage-core)
Free · BYOK
Free · BYOK
Free · BYOK
Early access: platform subscription waived for design partners — you pay inference pass-through only until
we exit beta. Lock in Starter at $499/mo
· Cost Forecast
· FAQ
What is an eval run?
One eval run = one scenario × one model × one replication
(one full simulated check-ride). Agent turns per eval run sets how many
back-and-forth conversation steps the agent may take in that run — one turn is one agent
reply (and usually a stakeholder response); the run ends at closure or when the limit is hit.
Compare 2 models on Support Escalation at 12 turns = 2 eval runs.
Batch 10 models on the same scenario = 10 eval runs.
Your bill has three line items — always shown separately on quotes and invoices:
Platform subscription — scenarios, rubrics, scorecards, compare, batch UI, run history, API access.
Eval runs — included in your plan; overage billed per run above the monthly cap.
Inference pass-through — token cost at public OpenRouter rates for the models you select. Shown on every API quote before you confirm.
We do not mark up inference during early access. You see the provider rate upfront.
How many eval runs you spend depends on the use-case family and its natural
cadence — a conversational agent tested once a quarter with weekly drift monitoring consumes very differently
from an analytical suite gating every pull request. The Cost Forecast ships
editable defaults for each family so you can size a realistic monthly bill.
Inference varies by model — example costs
Model token prices differ by orders of magnitude. A 12-turn Support Escalation check-ride on a budget trial
model might cost fractions of a cent in inference; the same run on Claude Opus or GPT-5 Pro can cost
dollars. That is why the trial is capped to the 5 lowest-cost tiers — and why paid plans quote inference
before you batch.
Model class
Example
Est. inference / eval run 12 turns, 1 model
Compare 2 models
Batch 10 models
Trial tier
5 lowest-cost OpenRouter models
$0.001 – $0.05
$0.002 – $0.10
$0.01 – $0.50
Mid catalog
Gemini Flash, GPT-4o-mini class
$0.01 – $0.15
$0.02 – $0.30
$0.10 – $1.50
Frontier
Claude Opus, GPT-5 Pro class
$0.50 – $4.00+
$1 – $8+
$5 – $40+
Ranges are illustrative for Support Escalation at 12 turns. Exact per-model estimates live on
Models and in every POST /evaluations/quote response.
Agent turns per eval run and scenario complexity multiply cost — a 24-turn guardrail stress test
costs more than an 8-turn discovery call.
Example monthly bill (Starter, paid)
Line item
Light usage
Active team
Platform (Starter)
$499
$499
Eval runs
80 runs (included)
1,200 runs (1,000 included + 200 × $2.50)
Eval run overage
$0
$500
Inference pass-through
~$15 (mid-tier models)
~$180 (mix of mid + frontier)
Total (approx.)
~$514
~$1,179
During early access the platform line may read $0 while we onboard design partners. Inference is always quoted upfront.
When you move from free to paid
You upgrade the moment the budget-model trial stops answering your real question:
You need a model outside the 5 cheapest tiers. A free rai_live_… key
quotes and submits on budget models only. Selecting Claude Sonnet, a GPT-4-class model, or anything
premium — via the API or signed-in batch runs — is where a paid plan
unlocks the full catalog. Locally, runtimeai-ide and
vantage-core already
run any model on your BYOK keys for free.
You batch your real shortlist in the cloud. “Run 10 models × 15 turns”
on production-grade candidates through POST /evaluations/submit — not just budget tiers —
is a paid batch sweep with quote-before-run pricing.
You wire evals into CI or release automation. Paid API keys add higher concurrency for
pipeline gates; vantage-core in GitHub Actions stays free and BYOK
if you self-host inference.
Everything free is free on purpose: public benchmarks (credibility), editor + vantage-core
(open-core adoption), and budget-tier API trials (proof). Browse the
scenario library to pick a check-ride — none of it gives away frontier
inference on our hosted keys.
What you get from RuntimeAI
Every surface shares the same engine. You are paying for (or self-hosting) the evaluation infrastructure — not just chat completions.
Agentic use cases — Technical tasks (SQL, pipelines, ML readouts) and Conversational workflows (support, sales, billing, triage), plus custom scenarios from a brief.
Custom scenario authoring — Draft a new check-ride from your brief, schema, or policy in about a minute; same deterministic rubrics as the public library.
Adversarial simulation — Stateful check-rides with agent turns per eval run (1–24) and stakeholder roles that stress guardrails over time.
Deterministic rubrics — Five auditable dimensions per scenario, scorecards (JSON/PDF), performance bands — no LLM-as-judge.
Side-by-side model compare — Parallel runs on the same scenario with linked comparison IDs.
Public benchmarks — Leaderboards, efficiency rankings, and guardrail erosion reports on published scenarios.
Run visibility — Transcripts, batch sweeps, aggregated charts, and per-run review in Runs when you sign in.
Create a new scenario
Public library check-rides are starting points. When none match your stack, schema, or policy,
author your own — fixed fixtures, multi-turn roles, and deterministic rubric dimensions — in about a minute.
Editor (CLI + MCP). From Cursor or Claude Code, use runtimeai-ide generate to
draft a custom scenario from repo context (schema, policy, SQL fixtures), then run local check-rides with
vantage-core.
Editor / MCP guide →
Repo → CI. Paste a brief, add your context blocks, review the draft, and save a
custom_… scenario for batch API evals or CI gates — same deterministic rubrics as the library.
Repo → CI guide →
CI/CD. Commit the scenario id and gate PRs on rubric scores in GitHub Actions — no separate
eval program.
CI/CD gating →
Persisting custom scenarios for API batch and team libraries is included on paid plans (see table above).
Step-by-step walkthrough: How To guide
· FAQ.
Two different keys
RuntimeAI API key (rai_live_…)
Authenticates you to the cloud HTTP API — quote, submit, and poll evaluations. Request one free by email. This is not your OpenRouter or Anthropic credential.
What actually calls GPT, Claude, Llama, etc. during a simulation. On RuntimeAI Cloud these are configured on the server; with vantage-core or a private deploy, you supply them.
Also available without primary nav links:
Console (Runs) for signed-in batch review and transcript history.
Bring your own OpenRouter (or other) keys
If you want RuntimeAI evaluations on any model, billed directly to your provider account, you have two paths today:
vantage-core (recommended for CI) — Install the open-source SDK locally or in GitHub Actions.
Set OPENROUTER_API_KEY (or Anthropic / OpenAI / Gemini equivalents) in your environment.
No tier restriction, no RuntimeAI cloud bill; you own inference spend and data residency.
Private RuntimeAI deploy (enterprise) — Dedicated RuntimeAI Cloud instance with your own
OPENROUTER_API_KEY, optional ANTHROPIC_API_KEY / OPENAI_API_KEY,
and Console, Runs, and HTTP API on your infrastructure. Your team uses the full UI; inference hits your keys.
On RuntimeAI Cloud at vantageai.cc, hosted API inference runs on Vantage-configured
provider keys — you do not paste an OpenRouter key into the browser, and the free trial is capped to the
5 lowest-cost tiers because we subsidize that inference. Quotes show estimated token cost at public
OpenRouter rates so you know the inference equivalent before confirming a batch.
Need the full catalog on our infra with your keys? Contact us.
How inference cost is estimated
Quote first — POST /evaluations/quote returns per-model readiness and
summary.est_cost_usd_total before you submit (15-minute TTL).
Multi-turn multiplier — Cost scales with agent turns per eval run and parallel model count, not a single chat completion.
Live rates — Per-model estimated eval cost on
Models and in Runs → Model Costs / Batch Run (sourced from OpenRouter public pricing).
Inference estimate disclaimer
Estimates use OpenRouter public pricing, agent turns per eval run, and — where available — aggregated results from extensive benchmark runs on this platform. Provider rates can change without notice; actual inference cost depends on your execution (turn depth, prompt size, retries, and model choice).
Catalog estimates assume planning token averages (1,500 input / 350 output tokens per LLM call),
agent turns per eval run, and a scenario. Where we have benchmark runs on a scenario, forecast and scorecard views prefer
the measured mean $/run from those replications.
Teams & volume
Full model catalog, higher concurrency, private scenario libraries, SSO-backed Runs, or BYOK on dedicated
infrastructure — contact us for team pricing. Volume is based on evaluation runs per month, separate from
underlying provider bills.
RuntimeAI sells the evaluation layer: multi-turn scenarios, deterministic rubrics, scorecards, model compare, benchmarks. Primary adoption path: runtimeai-ide editor (CLI + MCP, BYOK, free), HTTP API (quote-before-run batch evals), vantage-core CI (open-source BYOK). Free hosted trial (API) is restricted to the 5 lowest-cost OpenRouter tiers because RuntimeAI subsidizes that inference. Paid plans unlock the full model catalog, batch sweeps on production-grade models, custom scenarios, team seats. Scenario library at /runtimeai/use-cases helps pick check-rides. Conversion happens when a user selects a model outside the cheapest tiers, batches a real shortlist via API, or integrates evals into CI. rai_live API key is auth only; no platform fee during early access; inference quoted at OpenRouter rates.