November 12, 2025 · Fireworks AIDeprecation
Build SDK deprecated in favor of new Python SDK starting at 1.0.0
The Build SDK is being deprecated in favor of a new Python SDK generated directly from our REST API. The new SDK is more up-to-date, flexible, and continuously synchronized with our REST API. Please note that the last version of the Build SDK will be 0.19.20, and the new SDK will start at 1.0.0. Python package managers will not automatically update to the new SDK, so you will need to manually update your dependencies and refactor your code.
Existing codebases using the Build SDK will continue to function as before and will not be affected unless you choose to upgrade to the new SDK version.
The new SDK replaces the Build SDK's LLM and Dataset classes with REST API-aligned methods. If you upgrade to version 1.0.0 or later, you will need to migrate your code.
Latest Fireworks AI platform changes
Public cookbook moves to fw-ai-external/cookbook, fireworks-training-cookbook on PyPI
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fireworks-ai 1.2.30 replaces TITO sidecar 502 errors with source-specific error codes