Free
$0
Use the working bounded app first. No signup gate and no forced upgrade before value.
Use free calculatorWorking calculator · demand test · no live proxy
Spend less on AI APIs without changing your app.
Use the free calculator now to test the economics. The proposed BYOK router would later send each request to a cheaper suitable model with budget limits and fallback, but that live gateway is not shipped yet.
No signup. No card for the free calculator. No API key. Paid proof tiers below are review deliverables, not access to an unshipped router.
Your keys
Model spend stays with your providers. The proposed product does not pre-buy or resell tokens.
One routing layer
The value proposition is cheaper suitable routing, fallback and budget control — not another model catalogue.
Validate before build
Today the working functionality is the calculator. Live credentials, proxying and billing remain behind the evidence gate.
Zero-cost validation calculator
Would routing savings justify £5/month?
Change the assumptions yourself. This is a scenario calculator, not a savings guarantee, benchmark or live model-price quote.
No API key, account or model traffic is used by this calculator. All arithmetic runs in your browser.
Current spend
£100
per month
Scenario model spend
£65.00
before router subscription
Scenario gross saving
£35.00/mo
After a hypothetical £5 founder subscription: £30.00/month remaining in this scenario.
Opens a pre-filled email. No payment, card or API credential is collected today.
Validation boundary: this page tests demand for a future BYOK router. It does not proxy requests, resell model access or claim live routing savings.
Ask a question insteadFree first · exactly three paid steps
$0 → $5 → $50 → $99
Run AI Cost Router calculator before paying. The three paid tiers buy bounded written proof, diagnosis or an action pack; they do not silently imply a subscription, deployment, certification or legal/compliance decision.
Paid Proof
$5
A bounded fit / no-fit check plus one concrete blocker or next step.
Bounded deliverable with a product-specific reference.
Buy $5 proofDiagnostic
$50
Up to three evidence-backed findings and a prioritised action path.
Bounded deliverable with a product-specific reference.
Buy $50 proofAction Pack
$99
Up to five prioritised actions plus an acceptance checklist for the next implementation step.
Bounded deliverable with a product-specific reference.
Buy $99 proofThe $5 / $50 / $99 tiers buy bounded written analysis of the routing economics or implementation path. They do not provide a live AI proxy, credentials service or recurring router subscription.
Build gate
Evidence first. Code second.
Signal
A person emails explicit intent to consider the £5/month founder beta and identifies at least one model or AI coding tool they use.
Qualified
They currently pay for API/model usage or operate a workflow where routing cost and provider fallback matter.
Build threshold
At least 3 qualified founder-intent emails before building a live proxy, billing or persistent credential storage.
Stop rule
If the signal does not appear, keep the calculator as a free diagnostic and do not create token liability or paid infrastructure.
Would you pay £5/month if a shipped router cut enough of your model bill?
Tell us the models or tools you use and your rough monthly spend. That is enough to decide whether the live beta deserves to exist.