---
sourceDocument: Australia Enable AI
sourceDocumentLink: https://www.servicenow.com/docs/r/australia/intelligent-experiences

 Release :

    - australia

ft:locale :

    - en-US

ft:publication_title :

    - Australia Enable AI

ft:clusterId :

    - platai

bundleId :

    - platai

workflow :

    - Platform


---

# Default and target model version

# Default and target model version {#ariaid-title1}

Release version: Australia  
Updated September 16, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
Model version is the large language model version a skill uses to route requests to process users' queries. Default model version is where all the requests route to by default. This is pre-set by ServiceNow®. A target model version is chosen to route your requests to a different version at run-time, rather than using the default version.

## Updating the target model version at the instance level {#default-and-target-model-model-version__section_gdr_znq_c3c}

Note:  
* Model versions in the following states aren't available for selection: deprecated, retired, in review, rejected.
* Confirm that the model name you enter exactly matches the name configured in your external provider's console. A mismatch may cause the provider configuration to fail.
* Confirm that network access to the provider endpoint is allowed by your instance's proxy or firewall rules.
{#default-and-target-model-model-version__ul_xcv_mgh_pkc} A default mapping of default and target model version is pre-configured. If you update the target model version for a selected default model version, all the associated skills with this version mapping at the current instance level, get impacted.  

<br />

## Updating the target model version at the skill level {#default-and-target-model-model-version__section_xbc_b4q_c3c}

If you update the target model version for a selected default model version at the skill level, the mapping is updated for that skill only. Customizing the model version for skills overrides the instance-level model version
currently assigned to each provider. This action is typically reserved for specific situations.