fix(proxy): vscode byok - use chat completions for GPT-5.5 and GPT-5.6 - #441
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romius
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romius
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July 24, 2026 16:21
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Summary
Updates VS Code proxy model routing for GPT-5.5 and GPT-5.6 to use Chat Completions for improved tool-calling compatibility and reliable follow-up requests.
Changes
Impact
GPT-5.5 and GPT-5.6 remain available in VS Code, but reasoning controls are intentionally unavailable. This avoids failures caused by combining tools with reasoning and unreliable Responses API state across load-balanced requests.
Checklist