resolve alt config resolution for jumpstart models#5563
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mufaddal-rohawala merged 2 commits intoaws:masterfrom Feb 20, 2026
Merged
resolve alt config resolution for jumpstart models#5563mufaddal-rohawala merged 2 commits intoaws:masterfrom
mufaddal-rohawala merged 2 commits intoaws:masterfrom
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Summary
(e.g. lmi) instead of the user-specified config (e.g. lmi-optimized)
Problem
When deploying a JumpStart model with inference_config_name="lmi-optimized" via ModelBuilder.from_jumpstart_config(), the endpoint used environment
variables from the default lmi config instead of lmi-optimized.
from_jumpstart_config() correctly stores the config name on self.config_name, but _build_for_jumpstart() in model_builder_servers.py never passed it
to get_init_kwargs(). With config_name=None, _add_config_name_to_init_kwargs() falls back to get_top_ranked_config_name(), which returns the default
config.
Fix
Pass config_name=getattr(self, 'config_name', None) to the get_init_kwargs() call in _build_for_jumpstart().