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Enable Ultrafast service tiers for Amazon Bedrock Astra models - #50472
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## Why Bedrock catalogs cleared all service-tier metadata, and requests omitted every selected tier. This prevented users from selecting `ultrafast` or using tiers defined in custom catalogs. ## What changed - Advertise `ultrafast` for `openai.gpt-6-astra` on Mantle and the `global.openai.gpt-6-astra` and `us.openai.gpt-6-astra` Runtime variants, while retaining the implicit default tier unless users select otherwise. - Preserve custom catalog speed tiers, service-tier definitions, and defaults while continuing to normalize Bedrock web search compatibility. - Send selected service tiers only when the Bedrock model advertises them, including `flex`. ## Testing Add coverage for `model/list` tier discovery, custom catalog preservation, configured and per-turn HTTP request tiers, and TUI slash-command selection, toggling, and model switching. GitOrigin-RevId: 4793e7af7b9f604a6b7812611030da6adb8acd35
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Enable Ultrafast service tiers for Amazon Bedrock Astra models
Why
Bedrock catalogs cleared all service-tier metadata, and requests omitted every selected tier. This prevented users from selecting
ultrafastor using tiers defined in custom catalogs.What changed
ultrafastforopenai.gpt-6-astraon Mantle and theglobal.openai.gpt-6-astraandus.openai.gpt-6-astraRuntime variants, while retaining the implicit default tier unless users select otherwise.flex.Testing
Add coverage for
model/listtier discovery, custom catalog preservation, configured and per-turn HTTP request tiers, and TUI slash-command selection, toggling, and model switching.