Cost calculators.
Every tool here runs on the same backbone: vendor list prices, verified against the vendor's own pages and stamped with the verification date. No signup, no paywall — the math is the product.
9 live
The toolbox
01 LLM API LLM API cost calculator Monthly spend across every live-priced model — reasoning tokens, cache hit rates, batch tiers, shareable scenarios, CSV export. LIVEOPEN → 02 Tools Token counter Paste text, see token counts and cost across models. Tokenizers differ per vendor — so do the counts. LIVEOPEN → 03 Plans Subscription vs API ChatGPT, Claude, and Google AI plans vs pay-as-you-go API — break-even messages/day and value multiples on your real usage. LIVEOPEN → 04 Video Video generation cost Clips × seconds × resolution → every major video API ranked by monthly cost, with clip-length rounding and retakes priced in. LIVEOPEN → 05 Audio TTS / voice cost Characters or minutes per month → every major TTS API ranked by real monthly cost, free tiers and unit chaos normalized. LIVEOPEN → 06 Vectors Embedding cost Corpus, churn and queries → first-year embedding spend across every major API, batch rates and re-indexes priced in, plus your index size. LIVEOPEN → 07 Training Fine-tuning cost Dataset × epochs × retrains plus a year of the tuned model — priced against simply prompting the base model, with open-weight training alongside. LIVEOPEN → 08 Agents AI agent cost Steps × tool results × a context that grows every step — what one agent task costs on frontier and workhorse models, prompt caching and retries priced in. LIVEOPEN → NEW 09 Images Image generation cost Volume × size × takes across every major image API — tokens, units and credits converted to dollars per image, batch prices included. LIVEOPEN →
Why trust the numbers
Same data as the pricing desk
Calculators share the snapshot behind the pricing directory — list prices pulled from official vendor pages, with cache, batch, and per-tier rates carried through. When a vendor reprices, every preset, example, and comparison here recomputes. Method details: methodology. Wrong number? Report it.