> ## Documentation Index
> Fetch the complete documentation index at: https://docs.myrmagent.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Work Units

> Unified billing model for SaaS usage.

# Work Units (WU)

Work Units are the unified currency for all SaaS platform usage.

## What Consumes WU

| Activity            | Rate            |
| ------------------- | --------------- |
| LLM input tokens    | Varies by model |
| LLM output tokens   | Varies by model |
| Tool execution      | Per invocation  |
| Sandbox active time | Per minute      |
| File storage        | Per GB/month    |

## Plans

| Plan      | WU/month | Price    | Extras            |
| --------- | -------- | -------- | ----------------- |
| Free      | 600      | \$0      | +50/day refresh   |
| Companion | 6,000    | \$19/mo  | Unlimited agents  |
| Pro       | 18,000   | \$49/mo  | 7-day free trial  |
| Max       | 60,000   | \$149/mo | Dedicated support |

## Token Efficiency

Myrm's optimized system prompt uses only \~1,765 tokens, compared to 15,000+ for comparable platforms. With prompt caching, effective cost is reduced by up to 97%.

## Local/Desktop

Local WebUI and Tauri Desktop modes do not consume WU. You pay your LLM provider directly with BYOK (Bring Your Own Key).