Python Vercel Functions now have streaming enabled by default
Streaming is now enabled by default for all Vercel Functions using the Python runtime, allowing functions to send data to the client as it's generated rather than waiting for the entire response. The VERCEL_FORCE_PYTHON_STREAMING environment variable is no longer necessary.
is now enabled by default for all Vercel Functions using the , completing the rollout plan . Python functions can now send data to the client as it’s generated, rather than waiting for the entire response—particularly beneficial for use cases like AI applications and real-time updates.StreamingPython runtimeannounced last year
The environment variable is no longer necessary, as streaming is now applied automatically in your new deployments.VERCEL_FORCE_PYTHON_STREAMING
With streaming responses, the runtime log format and frequency have been updated.
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