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Open-source models advance rapidly. Baseten prioritizes serving the highest-quality models and deprecates specific Model APIs when stronger alternatives become available. When a model is selected for deprecation, Baseten follows this process:
  1. Announcement
    • Deprecations are announced approximately two weeks before the deprecation date.
    • Documentation is updated to identify the model being deprecated and recommend a replacement.
    • Affected users are contacted by email.
  2. Transition
    • The deprecated model remains fully functional until the deprecation date. You have approximately two weeks to transition using one of these options:
      1. Migrate to a dedicated deployment with the deprecated model weights. Contact us for assistance.
      2. Update your code to use an active model (a recommendation is provided in the deprecation announcement).
  3. Deprecation date
    • The model ID for the deprecated model becomes inactive and returns an error for all requests.
    • A changelog notification is published with the recommended replacement.

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Planned deprecations

ModelSlugDeprecation dateRecommended replacement
GLM 5zai-org/GLM-5July 24, 2026GLM 5.2 (zai-org/GLM-5.2)
GLM 5.1zai-org/GLM-5.1July 24, 2026GLM 5.2 (zai-org/GLM-5.2)
Kimi K2.5moonshotai/Kimi-K2.5July 24, 2026Kimi K2.6 (moonshotai/Kimi-K2.6)
Nemotron Supernvidia/Nemotron-120B-A12BJuly 24, 2026Nemotron Ultra (nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B)

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Next steps

Supported models

See the models currently available through Model APIs

Dedicated deployments

Deploy a model with Truss to keep using specific weights