Snowflake / Model configuration

claude-sonnet-4-6 · CORTEX_ENABLED_CROSS_REGION = 'AWS_AU'

AU processing documented

With the account in AWS Australia and CORTEX_ENABLED_CROSS_REGION set to AWS_AU, Cortex routes requests only to the request region, Sydney and Melbourne.

The important distinction:The setting matters: AWS_APJ adds Tokyo, Seoul, Osaka, Mumbai, Hyderabad and Singapore, and ANY_REGION is global. Organisations created after 9 Mar 2026 default to ANY_REGION, and a pending behaviour-change bundle enables cross-region where the parameter is unset. This is SQL/REST inside Snowflake, not an OpenAI-compatible endpoint.

Source review: 09 Nov 2026 · Named model configuration; confirm live account availability

Model coverage

claude-sonnet-4-6 · CORTEX_ENABLED_CROSS_REGION = 'AWS_AU'

API access

Snowflake account in an AWS Australian region; on-demand or capacity contract; account parameter set by an admin

Billing

AI Credits per 1M tokens: 1.80 input / 9.00 output; regional routing billed at USD $2.20 per AI Credit (about $3.96 / $19.80 per 1M)

Capacity commitment

No reserved capacity required for this service category.

Storage

Customer data stays in the account region; prompts and responses go to the processing region only for the duration of the request and are not persisted there.

Retention and training

Snowflake documents no persistence in the processing region. Account-level query history and logging follow normal Snowflake retention.

Ownership and control

Snowflake Inc. (US); Snowflake Computing Pty Ltd (ABN 50 624 134 587) is registered in Australia. Anthropic is the model developer; the underlying Australian route is AWS.

What to check before using it

Confirm the account is hosted in AWS ap-southeast-2 or ap-southeast-4.
Set CORTEX_ENABLED_CROSS_REGION = 'AWS_AU' explicitly; do not rely on the default.
Check the model is listed in the AWS AU cross-region column and review credit consumption.

Still to verify

Contracting entity on the order form
Effect of the pending cross-region behaviour change on existing accounts
Independent operational test not performed

Sources and supported claims

Documentation

Snowflake parameters · CORTEX_ENABLED_CROSS_REGION ↗

AWS_AU is defined as the region where the request is placed plus ap-southeast-2 (Sydney) and ap-southeast-4 (Melbourne); AWS_APJ adds other Asia-Pacific regions.