Talanton sets automatic spending limits on OpenAI, Claude, and 60+ models. When an AI prompt or loop gets too expensive, it stops it before it drains your credit card. Now live on PyPI (talanton-py) — 100% private, free, and open-source.

When you build apps with AI, every word costs money. An accidental code loop or a runaway prompt can quietly burn hundreds of dollars before you notice. Talanton protects your budget in four simple ways.
When AI bots talk to each other or loop through tasks, a small bug can make them run hundreds of times in a row without stopping. Talanton checks the bill before each call and shuts down runaway loops before they drain your bank account.
PLATE I · STOPPING ENDLESS LOOPSWhen AI workflows scale across tens of thousands of daily calls, small miscalculations compound into massive bills. Talanton handles 25,000 requests every second with atomic local ledgering, ensuring enterprise systems stay rock-solid.
PLATE II · BEARING ENTERPRISE SCALEOpenAI, Claude, and Meta all calculate words differently. If you just guess your word count, your bill will be 30% higher than expected. Talanton knows the exact pricing formulas for 61 popular models down to the penny.
PLATE III · 61 POPULAR AI MODELSOther monitoring tools send your private customer prompts over the internet to slow cloud servers, adding annoying lag. Talanton runs directly on your computer inside your app. It adds virtually zero delay (less than 0.0001 seconds) and never sends a single word to anyone else.
PLATE IV · BLISTERING SPEED| WHAT WE MEASURE | TALANTON SPEED | WHY IT MATTERS TO YOU | RESULT |
|---|---|---|---|
| Speed Added to Your AI | 0.00008s (0.08 ms) | Your users won't feel any delay at all | 1,000x Faster Than Cloud |
| High-Traffic Capacity | 24,586 calls / second | Easily handles massive traffic spikes | Flawless Under Load |
| Cost Calculation Accuracy | 100.0% Exact | Zero surprise bills from rough word guessing | Exact To The Penny |
| Data Privacy & Security | 100% Local Device | Customer prompts never leave your machine | Zero Cloud Leaks |
| Spending Limit Check | 0.0019s (1.94 ms) | Stops expensive calls in the blink of an eye | Instant Protection |
| Memory Needed | Under 15 Megabytes | So light it won't slow down your computer | Featherweight |

Visions Inform Better Decisions: Know · Anticipate · Prepare · Prosper. When user queries grow month over month, cloud bills explode silently. Talanton projects your exact spend curve across 3 to 12 months, calculating cash savings when downshifting routine queries to cheaper models.
PLATE V · THE TALANTON BALANCEIn ancient times, a Talanton (talent) was the supreme balance scale used to weigh gold and silver to keep merchants honest. If a trader tried to shortchange a buyer, the scale revealed the truth instantly.
Today, words sent to AI cost real money. Every prompt and answer burns dollars from your budget. Without an honest scale, companies fly blind until the monthly invoice arrives. Talanton is the scale that weighs your AI costs before the bill is due.
When developers start using AI in their companies, the first big shock is almost always the bill. A developer builds an AI assistant on Friday afternoon; over the weekend, a small bug causes an endless loop, burning through $3,000 of API credits before anyone logs in on Monday morning.
Most tools try to solve this by asking you to send all your private company data through their cloud servers, adding annoying delays to your app and charging you a steep monthly subscription.
I built Talanton to solve this simply and honestly: a free, open-source tool that runs directly on your own computer. It calculates exact costs in 0.00008 seconds, keeps your customer data 100% private, and sets automatic spending limits so you never get a surprise bill.