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PromptSpend
LLM API cost calculator and comparison tool
- Community votes
- 0
- DR by Ahrefs
- 7 no change since last check
Ahrefs Domain Rating benchmarked 25 Oct 2026, rebuilt 25 Oct 2026.
PromptSpend metrics
| Metric | Value |
|---|---|
| Domain Rating | 7 no change since last check |
| Trust Flow | 3 no change since last check |
| Citation Flow | 19 no change since last check |
| Referring domains | 48 no change since last check |
| External backlinks | 102 no change since last check |
Ahrefs Domain Rating benchmarked 25 Oct 2026, rebuilt 25 Oct 2026. Main build topic: Computers/Software/Operating Systems (3). Majestic benchmarked 25 Oct 2026, rebuilt 25 Oct 2026. Link data built by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
PromptSpend domain build sheet
| Domain age | 2 months |
|---|---|
| Registered | |
| Expires | |
| Registrar | Squarespace Domains LLC |
| DNSSEC | Not signed |
Estimate and compare LLM API costs across 109 models. Paste your prompt, see every bill side by side from prices re-checked every morning.
What it is
PromptSpend helps you estimate, compare, explain and reduce LLM API costs. The tool covers 109 models from 16 providers, comparing pricing across services like GPT and Claude. It maintains an automatically updated pricing catalog that re-checks itself every morning against tracked sources.
The service is free and open source, with no accounts required and no advertising. Text you paste into the estimator is processed on your device and not transmitted or saved. You can use it on the website or download native apps for iPhone and Android, with all versions using the same pricing catalog and sources.
What it is built with
- 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
Pricing
Pricing model: Open source
Free
Compare and explore
Questions from the bench
- How often is the pricing catalog updated?
- The pricing catalog is re-checked every morning by a GitHub Action against tracked sources. Current catalog and source-check status are available at promptspend.com/data/pricing.json and promptspend.com/data/sync-status.json.
- Is my pasted text saved or transmitted?
- No. Text pasted into the estimator is processed on your device. PromptSpend does not transmit or save that pasted text. Shared results contain derived counts and costs rather than the pasted text itself.
- How do I set up price alerts?
- The native app can create, confirm, review, change, and delete an optional email price-alert subscription. Request a six-digit management code in Data & Alerts, enter the code from your email, and update the cadence or followed models directly in the app. The code expires after 10 minutes; the resulting in-app management session expires after 30 minutes.
- What information is collected on the website?
- The website uses Google Analytics to count visits and set cookies. Google receives the address of the page you are on without anything after a question mark or hash sign, and never what you type or paste. PromptSpend does not place raw pasted text in shared links or browser storage.
- Does PromptSpend have user accounts?
- No. The native app has no account system. PromptSpend is free, requires no accounts, and contains no ads or behavioral analytics.
Find PromptSpend online
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PromptSpend has a free listing. The owner can unlock the full profile with a paid launch for $5:
- Founder story (locked)
- Milestones (locked)
- Demo video (locked)
- Dofollow website link (locked)
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