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Deprecations

Deprecation Notices

Index of Smallest AI model tags, endpoints, and parameters that are deprecated or scheduled for removal.
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This page lists Models (Waves) surfaces that are deprecated. Each row shows the current status and the migration target.

How to read this page

  • Deprecated: the surface still works, but new integrations should use the migration target.
  • Rejects: the surface returns an error and does not process the request. Migrate immediately.
  • Removed: the surface no longer exists. Requests return 404.

Currently deprecated

Speech-to-Speech (Hydra)

SurfaceDeprecated sinceStatusMigrate to
?model=hydra on wss://api.smallest.ai/waves/v1/s2s2026-08-20Deprecated. Session still opens, but the server emits a warning frame with code: "model_deprecated" immediately before session.created. The warning names hydra-v1.0 as the migration target.?model=hydra-v1.1 (current release, recommended) or ?model=hydra-v1.0 (the tag the server’s own warning points at). See the Hydra model card for the per-version voice roster.

Reporting a break

If a surface you rely on starts emitting a deprecation warning unexpectedly, or a mapping on this page looks wrong, open a ticket and quote the surface plus the exact server frame you received. That is the minimum needed to trace and reroute.