# Claude Sonnet 4.5 is now live

**URL:** <https://community.retellai.com/t/claude-sonnet-4-5-is-now-live/148>\
**Category:** Announcements\
**Created:** [October 30, 2025, 12:59am UTC](https://community.retellai.com/t/claude-sonnet-4-5-is-now-live/148 "2025-10-30T00:59:17Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![alex.baca](https://yyz2.discourse-cdn.com/flex008/user_avatar/community.retellai.com/alex.baca/32/81_2.png) [@alex.baca](https://community.retellai.com/u/alex.baca)\
**Post date:** [October 30, 2025, 12:59am UTC](https://community.retellai.com/t/claude-sonnet-4-5-is-now-live/148/1 "2025-10-30T00:59:17Z")

</div>

Claude Sonnet 4.5 is now live on Retell AI!

With the new model, Anthropic has significantly improved subject matter expertise in finance, healthcare, law, and STEM.

If your voice agents handle specialized conversations like medical scheduling, financial advisory, legal intake, they just got a lot smarter about the actual domain knowledge.

Available now in your Retell AI dashboard.

[https://www.linkedin.com/feed/update/urn:li:activity:7379216702989012992](https://www.linkedin.com/feed/update/urn:li:activity:7379216702989012992)