Product
One tool for AI cost management, from "what does this cost" to "what did we spend".
Five pieces that share one pricing source: a directory, calculators, a usage workspace, budgets and a what-if comparison engine.
Directory
Every model's price, checked against the source
The starting point for AI cost management is knowing what things actually cost. The directory covers every major provider, links each figure to its source, and flags anything we couldn't independently verify instead of quietly presenting it as fact.
Browse the directory- GPT-5.5 ProOpenAI$30.00 in$180.00 out
- Claude Fable 5Anthropic$10.00 in$50.00 out
- Claude Mythos 5Anthropic$10.00 in$50.00 out
- Claude Opus 4.8Anthropic$5.00 in$25.00 out
- chat-latestOpenAI$5.00 in$30.00 out
- GPT-5.5OpenAI$5.00 in$30.00 out
- Qwen3.7-MaxAlibaba Cloud (Qwen)$2.50 in$7.50 out
| Model | Provider | Input /1M | Output /1M |
|---|---|---|---|
| GPT-5.5 Pro | OpenAI | $30.00 | $180.00 |
| Claude Fable 5 | Anthropic | $10.00 | $50.00 |
| Claude Mythos 5 | Anthropic | $10.00 | $50.00 |
| Claude Opus 4.8 | Anthropic | $5.00 | $25.00 |
| chat-latest | OpenAI | $5.00 | $30.00 |
| GPT-5.5 | OpenAI | $5.00 | $30.00 |
| Qwen3.7-Max | Alibaba Cloud (Qwen) | $2.50 | $7.50 |
Calculators
Turn a token volume into a dollar figure
Enter requests, input and output tokens, and get an exact cost from live pricing — for one request or a projected month. No spreadsheet, no reading a provider's tier structure to find the rate that applies to you.
Open the calculatorExample, not your data
Model
Amazon Nova 2.0 Pro
Tokens
50K in / 12K out
Workspace · projects & CSV import
Bring in usage the way you already have it
Create a project per product, team or client, log usage by hand, or import a CSV export straight from a provider's usage dashboard. Every imported row is re-priced from the same verified rates in the directory, so cost stays consistent everywhere it's shown.
See what's included in Pro- 2026-06-24 GPT-4o 84.2K in / 19.1K out$0.4015
- 2026-06-25 Claude Sonnet 5 51K in / 14.8K out$0.25
- 2026-06-25 Gemini 3.5 Flash 210K in / 38.5K out$0.6615
Example file. Cost is computed from live pricing at import time, matching the directory.
Workspace · budgets & alerts
Know before you're over, not after
Set a monthly budget per project and a threshold to alert at. Meterlark evaluates every new entry against it, so a runaway job or a pricing change shows up as a warning instead of a surprise on next month's total.
See what's included in ProBudgets & alerts
Example workspace · Pro feature
- Support bot$602.71 / $450.00
Overalert sent at 134% of budget
- Content pipeline$502.26 / $520.00
Nearingalert sent at 97% of budget
- Internal search$1,130 / $700.00
Overalert sent at 161% of budget
Workspace · what-if
Price your real usage against every other model
Take your actual month-to-date usage and run it through every model in the directory. This is where AI cost management stops being theoretical: it's the exact answer to "what would switching actually save us".
Compare two modelsWhat if we switched?
Example workspace · same month-to-date usage, every model
- Claude Haiku 4.5Cheapest$2.00
- Amazon Nova 2.0 Pro$3.66
- Claude Sonnet 5Current$4.00
- Claude Opus 4.8$10.00
- Claude Fable 5$20.00
Start with the free half.
The directory and calculators need no account. Sign up when you want the workspace tracking real usage.
Start free