> For the complete documentation index, see [llms.txt](https://docs.glacislabs.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.glacislabs.com/glacis-core/messaging-fees/gas-overhead.md).

# Gas Overhead

As a product that provides great added value, the code needed to achieve abstraction, redundancy, access control, and retry management features incurs gas overhead in both source and destination chains.

At present, the average gas overhead when sending messages of various types through a single GMP with abstraction is as follows:

| GMP        | uint256 | string |
| ---------- | ------- | ------ |
| Axelar     | 159880  | 167419 |
| Layer Zero | 114439  | 117165 |
| Wormhole   | 152236  | 151730 |
| CCIP       | 146529  | 149540 |
| Hyperlane  | 208170  | 211395 |

> The values are expressed in gas units.