> This page is for version v4.7.1.
> For other versions, use one of these documentation indexes:
> - v4.8.0 (default): https://docs.nvidia.com/clara/parabricks/v4.8.0/llms.txt
> - v4.7.1: https://docs.nvidia.com/clara/parabricks/v4.7.1/llms.txt

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.nvidia.com/clara/parabricks/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.nvidia.com/clara/parabricks/_mcp/server.

# Output Accuracy and Compatible CPU Software Versions

Parabricks produces the same functionality results as the following baseline tools.
There might be mismatches in the output file caused by a variety of factors, such as
pseudo-random generation, rounding error, library dependencies, or use of additional
arguments. For more information, refer to each tool's **Source of Mismatches** section
in their respective pages.

| **Tool**    | **Version** |
| ----------- | ----------- |
| BWA-MEM     | 0.7.15      |
| bwa-meth    | 0.2.7       |
| Deepvariant | 1.9.0       |
| GATK        | 4.3.0.0     |
| minimap2    | 2.31        |
| pbmm2       | 1.13.0      |
| STAR        | 2.7.2a      |
| STAR-Fusion | 1.7.0       |
| vg giraffe  | 1.70.0      |

Refer to [ComparisonsToBaselineTools](/about-parabricks/comparison-with-baseline-tools) for information
on how to accurately compare the diff version of the output files to the baseline code