Agno has updated the default model id used by several model providers to newer, actively supported versions. Agents that don't pin a specific model will now run on more current models, helping teams avoid upcoming provider deprecations, get more consistent performance, and in many cases lower inference cost.
Action required: If your application depends on specific model behavior, pin the version explicitly on the model class rather than relying on the default. For example, prefer OpenAIResponses(id="...") or Claude(id="...") over leaving id unset, so future default updates don't change your agent's behavior unexpectedly.
Why it matters: Provider model lifecycles move on the provider's timeline, not yours. Tracking defaults to actively supported models keeps existing Agno applications running smoothly through deprecations and avoids the operational scramble of a forced migration when an older model retires.