# Unexpected Behavior Using Claude Sonnet 4.6 with Tool Use **URL:** \ **Category:** Support\ **Created:** [February 23, 2026, 2:41pm UTC](https://community.mindstudio.ai/t/unexpected-behavior-using-claude-sonnet-4-6-with-tool-use/1968 "2026-02-23T14:41:36Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![bkermen](https://yyz2.discourse-cdn.com/flex008/user_avatar/community.mindstudio.ai/bkermen/32/1287_2.png) [@bkermen](https://community.mindstudio.ai/u/bkermen)\ **Post date:** [February 23, 2026, 2:41pm UTC](https://community.mindstudio.ai/t/unexpected-behavior-using-claude-sonnet-4-6-with-tool-use/1968/1 "2026-02-23T14:41:36Z")
Hi everyone, Could you please review the **“Conduct Research”** step from the following run log? [https://app.mindstudio.ai/share/debugger/0cd5178d-5920-4aa5-952c-a296f47d14fa/916308b0-f2aa-4df2-826f-7af954dae02e](https://app.mindstudio.ai/share/debugger/0cd5178d-5920-4aa5-952c-a296f47d14fa/916308b0-f2aa-4df2-826f-7af954dae02e) This step is a **Generate Text** block with **Tool Use enabled**. It is working quite well with Google models (using the Google Search tool). However, when I tested the same setup with Claude Sonnet 4.6, I encountered several issues: - Extremely long processing time - Significantly higher cost (compared to Google models using the Google Search tool, where the cost is only a small fraction of this) - No meaningful or usable output - The run log indicates that the `code_execution` tool was used, even though I did not enable it I tried using Clause Sonnet 4.6 as an alternative in the Hackathon Workspace, so the cost impact is not critical in this case. However, I would like to better understand what might be going wrong in this configuration so I can avoid similar issues in the future. Is there something specific about how Claude handles tool use in this context that I may be missing? Thanks in advance for your insights.