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PromptSpend vs AI999X Labs

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

PromptSpend compared with AI999X Labs
DetailPromptSpend logo PromptSpend AI999X Labs
What it doesLLM API cost calculator and comparison tool Not given
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelOpen source Free
PricingFree Not given
Key features
  • Estimate LLM API costs for 109 models
  • Compare pricing across 16 providers
  • Paste prompt and see cost comparison
  • Free tier information for each model
  • Optional email price alerts
  • Data processed on device, not transmitted
  • Available as native iPhone and Android apps
  • Pricing API available
  • VS Code extension
  • 39 scientific models across mathematics, physics, chemistry, engineering, life sciences, economics and geospatial analysis
  • 3,438 capabilities with worked examples and formulas
  • Desktop app for Windows and Linux
  • Command-line interface for scripts and terminal
  • In-browser calculator on every model page
  • Python packages via pip
  • SpaceBuild for space system design with 146 products
  • MachineBuild for engineering and mechanical design with 1,042 products
  • Capability orb visualization of all 3,438 capabilities
  • No internet or account required
What makes it different
  • Pricing automatically re-checked every morning against tracked sources
  • Completely free with no accounts or ads required
  • Pasted text stays on your device and is never transmitted
  • Open source MIT licensed codebase
  • Covers 109 models from 16 providers in a single comparison
  • Runs completely offline with no data sent anywhere
  • Shows all working and formulas for every calculation
  • No sign-up required or accounts needed
  • Available as desktop app, CLI, browser, and Python package
  • Models improve themselves through local research
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)8 +1 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)30
Citation Flow (Majestic)190
Referring domains (Majestic)480

3 details filled in for both companies.

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