Microsoft says a Foundry model using Grounding with Bing Search may decide which pieces of tool output are used to generate the response.

Sources

• Use Grounding with Bing Search tools with the agents API - Microsoft Foundry

  Microsoft (Microsoft Learn) · primary source · retrieved 2026-08-18

  “might also decide which pieces of tool outputs are used to generate the response” — Best-practices/considerations section for the Grounding with Bing Search tool

  “the AI model might not fully use all of the outputs” — Tool parameters section

• Overview of web grounding capabilities in Foundry

  Microsoft Learn · primary source · retrieved 2026-08-18

  “Information synthesis: The agent processes search results and integrates findings into responses.” — How web grounding works, step 3

• Microsoft Retired Bing Search API: What Replaces It?

  iTechGuides · retrieved 2026-08-18

  “The model still decides how to use the returned context” — Section describing the grounding flow versus the retired search API