Free calculators built for AI SaaS

Find the unit-economics problem hiding behind your AI feature

Model the expensive edge cases that average token calculators miss. Every tool uses current model pricing and produces an actionable answer—no signup required.

Tool 01 · Customer economics

AI SaaS Power User Calculator

Find the exact power-user mix your current pricing can survive.

Average usage hides margin risk. This calculator models normal and power users as separate economic cohorts.

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Tool 02 · Packaging and monetization

AI Credits Pricing Calculator

Price one AI credit and decide how many credits each plan should include.

This starts with real model COGS and works backward into a credit system customers can understand.

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Tool 03 · Plan guardrails

LLM Usage Limit Calculator

Set a usage allowance that is generous to customers and safe for gross margin.

The result is a customer-facing limit and overage price, not another abstract token-cost estimate.

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Tool 04 · Reliability economics

LLM Fallback Chain Cost Calculator

Measure reliability cost across primary calls, retries, fallbacks, and failed tasks.

A cheap request is irrelevant if several attempts are required to produce one accepted result.

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Tool 05 · Context economics

LLM Conversation Context Cost Calculator

Find the turn where conversation history becomes more expensive than the new message.

This models billed context turn by turn and compares full history with scheduled summarization.

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Tool 06 · Inference optimization

Prompt Caching Break-Even Calculator

Find the reuse rate and traffic volume required for caching to save money.

The result includes cache-write premiums and invalidation risk instead of assuming every repeated token is a hit.

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Tool 07 · Feature unit economics

AI Feature Profitability Calculator

Calculate contribution margin and the minimum profitable price for one AI feature.

It combines AI calls, human review, third-party tools, adoption, and incremental revenue in one feature P&L.

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Tool 08 · Vendor price risk

LLM Price Change Impact Calculator

Translate a model-price change into the exact action your SaaS business must take.

Instead of reporting new token prices, this calculates the required plan increase, usage reduction, or model switch.

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From one answer to a living model

Want to monitor the full business?

Use the complete margin simulator to combine plan revenue, model routing, infrastructure costs, and customer usage in one scenario.

Open margin simulator

LLM Margin's free tools focus on the business mechanics that determine whether an AI product scales profitably: uneven customer usage, credit redemption, retries, growing context, cache reuse, human review, and provider price risk. Results are estimates—validate them against your own production telemetry.

Related tools: Current LLM pricing · Model cost comparisons · AI budget planner