How prompt caching reduces LLM API costs
Separate stable prefixes from dynamic tokens, estimate hit rate, and account for cache-write fees when planning spend.
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Choosing models by latency vs API cost
How to set a latency SLO, compare planning p50 latency with list prices, and avoid overpaying for speed you do not need.
Read articleUnit economics for SaaS AI features
Connect token costs, adoption, and pricing so AI features stay within a healthy COGS band.
Read articleConvert USD AI API bills to GBP, EUR, AUD, and CAD
How UK, EU, Australian, and Canadian teams should budget OpenAI and Anthropic invoices that arrive in dollars.
Read articleWhen self-hosted LLMs beat API pricing
Compare GPU-hour economics to hosted token prices, and know which assumptions flip the decision.
Read articleHow API rate limits shape LLM cost and capacity
RPM, TPM, concurrency, and daily caps decide your real ceiling—often before list price does.
Read articleAllocate AI API budget across team seats
Use role weights and hard caps so a few power users do not consume the whole monthly AI pool.
Read articleHow to estimate PDF and document ingestion cost
Turn pages into tokens, account for chunk overlap, and decide when an LLM extract pass is worth the spend.
Read articleHow to price A/B and cascade model routing
Estimate LLM spend when you split traffic or escalate hard cases from a cheap primary to a premium model.
Read articleHow to estimate multi-provider failover cost
Price an availability path: primary success rate, failed-attempt billing, and secondary spend during blips or outages.
Read articleHow to estimate LLM-as-judge eval cost
Break eval spend into candidate generation and judge scoring—and see why rubric dimensions multiply the bill.
Read articleHow to estimate synthetic data generation cost
Price generate → critique → filter pipelines and understand why accept rate drives over-generation spend.
Read articleWhen does a RAG re-ranker pay for itself?
LLM rerank adds calls, but feeding top-N instead of top-K into the generator can cut context tokens enough to win overall.
Read articleHow to estimate LLM API costs before you ship
A practical framework for turning traffic assumptions into monthly OpenAI, Anthropic, and Google API spend.
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