ai21.j2-ultra-v1

ai21.j2-ultra-v1 (AWS Bedrock) was shut down on Mar 12, 2025; calls to it fail. AWS Bedrock recommends ai21.jamba-instruct-v1:0 (itself EOL 2025-08-01) instead.

Provider

AWS Bedrock

Shutdown

Mar 12, 2025 (already shut down)

Announced

Apr 30, 2024

Replace with

ai21.jamba-instruct-v1:0 (itself EOL 2025-08-01)

• Dates from archived official page https://web.archive.org/web/20251202192947/https://docs.aws.amazon.com/bedrock/latest/userguide/model-lifecycle.html .
• Bedrock sets its own dates (they differ from the model provider's own API). Legacy models: new customers can't use them; existing customers may lose access after 15 days of inactivity.

Source: https://web.archive.org/web/20251202192947/https://docs.aws.amazon.com/bedrock/latest/userguide/model-lifecycle.html · report a wrong date