Do you store my data?

No. All calculations run entirely in your browser. Nothing you type is sent to a server.

LLM Cost Calculator & AI Infrastructure Pricing Tools

LLM Token & API Cost Calculator

Estimate monthly spend across GPT-4o, Claude, and Gemini based on your token throughput.

Model

Input tokens / request avg

Output tokens / request avg

Requests per period

Billing period

Estimated cost

— per month

Price (input / output per 1M)—

Cost per request—

Input token cost—

Output token cost—

Total tokens / period—

Pricing reflects published 2026 public API rates (USD, pay-as-you-go). Volume discounts, cached input, and batch pricing are not applied. Verify against the provider's pricing page before budgeting.

Vector Database Cloud Cost Estimator

Approximate monthly cost for Pinecone, Supabase, Qdrant, and Weaviate from your index size.

Provider

Number of vectors

Dimensions

Queries / month

Estimated monthly cost

—

Raw vector storage—

Storage cost—

Query / compute cost—

Plan base fee—

Vector DB pricing models vary widely (serverless read units, pod-hours, compute tiers). These are simplified order-of-magnitude estimates assuming float32 vectors and ~1.5× index overhead — use them for comparison, not for contracts.

AI Image Generation Budget Planner

Compare per-image and monthly cost across DALL·E 3, Stable Diffusion, and Flux.

Model / quality

Images / month

Avg variations per prompt multiplier

Estimated monthly cost

—

Cost per image—

Total images generated—

Cost per 1,000 images—

DALL·E rates are per-image API prices. Open models (SDXL, Flux) reflect typical hosted-API pricing; self-hosting on your own GPU can be dramatically cheaper at scale but adds infra cost not modeled here.

SaaS Payment Gateway Fee Calculator

See exactly what Stripe, Paddle, Lemon Squeezy, and PayPal take from your monthly revenue.

Monthly revenue USD

Transactions / month

Avg transaction value

Paddle & Lemon Squeezy act as Merchant of Record — their higher % includes global sales-tax/VAT handling and chargeback coverage, which Stripe bills separately.

Fees by provider

Build it cheaper — partner offers

🌊 Deploy with $200 DigitalOcean credits ↗ ⚡ Build with Supabase ↗ ▲ Ship on Vercel ↗

Frequently asked questions

Everything about how these calculators work and where the numbers come from.

How accurate are the LLM pricing calculations? +

They use published 2026 public API rates from OpenAI, Anthropic, Google and others, reviewed monthly. They don't include negotiated enterprise discounts, prompt caching, or batch-API savings — so treat them as an upper-bound budgeting estimate.

Is APICalculators free to use? +

Yes. Every calculator is free with no registration, login, or paywall. We sustain the site through display ads and affiliate partnerships.

Do you store or send my data anywhere? +

No. All math runs entirely in your browser with JavaScript. Nothing you type is transmitted to a server or persisted beyond your session.

Why do vector DB and image estimates vary from my real bill? +

Those providers price on complex dimensions (read units, pod-hours, GPU time, plan tiers). We use simplified, transparent models for apples-to-apples comparison — great for choosing a provider, not a substitute for their official calculator.

Which payment processor is cheapest? +

It depends on your average transaction value and whether you need tax handling. Stripe usually wins on raw % for high-value transactions; Paddle and Lemon Squeezy bundle global VAT/sales-tax compliance into a higher rate. The calculator shows the real dollar difference for your numbers.

Know your infra costsbefore the invoice does.

LLM Token & API Cost Calculator

Vector Database Cloud Cost Estimator

AI Image Generation Budget Planner

SaaS Payment Gateway Fee Calculator

Frequently asked questions

One cost-saving tip every week

Know your infra costs
before the invoice does.