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Ghost Publication Prompt Caching Savings Calculator
Free prompt caching savings calculator built for Ghost Publication founders: plug in your numbers, get instant 2026 benchmarks, and export a Markdown report.
Interactive Studio
Step 1 · Configure Inputs
Your Metrics & Parameters
Adjust values or drag sliders — outputs recalculate live.
USD $
$
Engine Methodology
Prompt Caching Savings Calculator: Monthly Tokens = ActiveUsers × Runs/Mo × Tokens/Run · AI Gross Margin = (MRR − InferenceCost) ÷ MRR
Top-Quartile Benchmark
AI Gross Margin & Token Spend
98.8% Margin
367 active users running 140 requests/mo (2,200 tokens/run) consume 113.04M tokens/mo ($361.72 inference spend), yielding a 98.8% AI gross margin.
Monthly Token Volume
113.04M tok
51,380 total requests/mo
Estimated LLM API Spend
$361.72
$0.986 inference cost / user
Monthly Subscription Revenue
$30,461
367 users × $83.00/mo
AI Gross Margin
98.8%
2026 AI SaaS target: >= 70%
Next Step for Founders
Launch on FoundrList ($29) or submit to 100 directories ($279)
Permanent DR 73 dofollow backlink + indexed `.md` twin for ChatGPT & Perplexity.
FoundrList Launchpad · DR 73 Dofollow
Launch today for $29 or get 100 directory backlinks for $279.
Used by 1,240+ SaaS & AI founders for organic traffic and AI citations.
2026 Reference Data
Industry benchmarks. How your ai, llm tokens & unit economics metrics compare.
| Benchmark Metric | 2026 Standard | Founder Context |
|---|---|---|
| Target AI SaaS Gross Margin | 70% – 85% | Prompt caching + model routing protect margins against heavy users. |
| Optimal RAG Chunk Size | 384 – 768 tokens (15% overlap) | Balances retrieval precision and context window cost. |
| English Token-to-Word Ratio | ~1.33 tokens / word (~4 chars/token) | Code and JSON payloads average ~3.2 chars/token. |
How to use this tool. Three steps from raw inputs to founder-ready output.
- 01
Enter your startup metrics or copy inputs
Fill in the fields in the Ghost Publication Prompt Caching Savings Calculator workspace above, or click "Load Example" to populate verified ai, llm tokens & unit economics benchmark data.
- 02
Review real-time calculations & benchmark grades
Inspect the primary output, supporting unit metrics, and diagnostic rules that update instantaneously in your browser with zero server round-trips.
- 03
Copy the report or deploy your launch plan
Click 'Copy Result' to export the clean Markdown output or code snippet, then launch your product on FoundrList to compound organic traffic and high-DR backlinks.
Formula & methodology. Transparent math with zero black-box assumptions.
Core Calculation
Prompt Caching Savings Calculator: Monthly Tokens = ActiveUsers × Runs/Mo × Tokens/Run · AI Gross Margin = (MRR − InferenceCost) ÷ MRR
With default 2026 baseline inputs, the Ghost Publication Prompt Caching Savings Calculator produces 98.8% Margin (AI Gross Margin & Token Spend). 367 active users running 140 requests/mo (2,200 tokens/run) consume 113.04M tokens/mo ($361.72 inference spend), yielding a 98.8% AI gross margin.
Questions, answered.
Free prompt caching savings calculator built for Ghost Publication founders: plug in your numbers, get instant 2026 benchmarks, and export a Markdown report. All calculations, scoring rules, and templates run 100% client-side in your browser for instant feedback without sending private startup metrics to a server.
The Ghost Publication Prompt Caching Savings Calculator uses current 2026 SaaS, indie hacker, and venture benchmarks across B2B SaaS, AI products, developer tools, and bootstrapped startups so you can compare your numbers against top-quartile performers.
Yes — every tool in the FoundrList Founder Tools suite is 100% free with no signup wall, usage cap, or watermark, and includes a clean Markdown twin (.md) for AI agents and coding assistants.
Submit your product on FoundrList (/agent) to compete on the weekly launch leaderboard, earn a permanent high-DR dofollow backlink, or launch today for $29 (Standard Launch), book 50 Directory Submissions for $179 or 100 for $279, or grab the $278 SEO Boost Pack (/pricing) to distribute your startup everywhere.
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Ready to grow your startup? Free forever, or go live today with permanent DR 73 backlinks and directory outreach.
Full pricing details14-Day Featured
Two weeks at the top of the home page. Live today.
$49$89
One-time payment · or $39/week, cancel anytime
- 14 days at the top of the home page
- Everything in Standard Launch
- Priority support
- Early access to new features
Best valueFeature for 30 days
30-Day Featured
A full month at the top of the home page. Live today.
$99$229
One-time payment · or $79/month, cancel anytime
- 30 days at the top of the home page
- Everything in Standard Launch
- Priority support
- Early access to new features
Reach more founders. SEO backlinks, directory submissions, blog features, and weekly ads.
- SEO Boost Pack. Featured Blog Post + 50 Startup Directories bundled into one campaign.$278One-time · save $0+ vs separate
- 50 Startup Directories. Manual submission to 50 curated high-DR startup & AI directories.$179One-time · CSV proof report
- 100 Startup Directories. Manual submission to 100+ startup, SaaS & AI directories for maximum DR lift.$279One-time · full proof report
- Featured Blog Post. Permanent, SEO-optimized deep dive on FoundrList's blog with dofollow links.$99One-time · indexed on Google & AI search
- Newsletter Feature. Sponsored placement in our weekly digest sent to 2,140+ founders & investors.$25One-time · weekly founder digest
- Home + Sidebar Bundle. Both ad placements together — Home Feed + Sidebar across the entire site.$89/wkAlways-on weekly · $99 single week
- Home Feed Ad. Native sponsored card pinned inside the main FoundrList discovery feed.$39/wkAlways-on weekly · $49 single week
- Sidebar Ad. Persistent desktop right-rail placement across product, blog & tool pages.$69/wkAlways-on weekly · $79 single week
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