Implementation Guides

LTX-2 Deprecation Notice

Migrate to LTX-2.3 before August 15, 2026

LTX-2 (ltx-2-fast, ltx-2-pro) is deprecated as of July 15, 2026 and will be removed on August 15, 2026. Migrate to LTX-2.3 (ltx-2-3-fast, ltx-2-3-pro).

As of July 15, 2026, LTX-2 is deprecated. Requests that specify an LTX-2 model are automatically served by LTX-2.3 and still billed at LTX-2 rates, so your integration keeps working during the transition with no price change. LTX-2.3 includes all of the functionality of LTX-2, along with improved quality, performance, and the latest capabilities.

On August 15, 2026, LTX-2 is removed. After that date, LTX-2 requests are no longer supported and will return an error. Migrate to LTX-2.3 before then.

How to migrate

Update the model field in your requests to the LTX-2.3 equivalent:

Deprecated (LTX-2)Replacement (LTX-2.3)
ltx-2-fastltx-2-3-fast
ltx-2-proltx-2-3-pro

See Supported Models and Pricing for LTX-2.3 details.