# Default model IDs refreshed across providers

> Agno has updated the default model id used by several model providers to newer, actively supported versions.

- Published: 2026-04-27
- Author: Agno Team
- Category: Changelog
- Canonical: https://agno-com-nine.vercel.app/articles/default-model-ids-refreshed-across-providers
- Markdown: https://agno-com-nine.vercel.app/articles/default-model-ids-refreshed-across-providers.md

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.