# Allow custom models with same/similar IDs as built-in models, routed via Override Base URL **URL:** \ **Category:** Feature Requests\ **Tags:** byok\ **Created:** [October 29, 2026, 9:20am UTC](https://forum.cursor.com/t/allow-custom-models-with-same-similar-ids-as-built-in-models-routed-via-override-base-url/176604 "2026-10-29T09:20:42Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![BinBin\_Liu](https://avatars.discourse-cdn.com/v4/letter/b/bc79bd/32.png) [@BinBin\_Liu](https://forum.cursor.com/u/BinBin_Liu)\ **Post date:** [October 29, 2026, 9:20am UTC](https://forum.cursor.com/t/allow-custom-models-with-same-similar-ids-as-built-in-models-routed-via-override-base-url/176604/1 "2026-10-29T09:20:42Z")
I want to use my own OpenAI-compatible endpoint (BYOK + Override OpenAI Base URL) with a model ID that matches or closely matches a built-in Cursor model. Example: - Built-in: Claude Sonnet 5.5 (`claude-sonnet-5-5`) → Cursor channel - Custom: `claude-sonnet-5-5` → my Base URL (e.g. jiekou.ai / highwayapi) Current behavior: - Adding `claude-sonnet-5-5` fails with: `The model "claude-sonnet-5-5" is already available as "Claude Sonnet 5.5".` - Built-in Claude does not use Override OpenAI Base URL. - Only unrelated custom IDs can be added, so naming cannot stay consistent with the provider. Expected behavior: 1. Allow adding a custom model whose ID is the same as, or similar to, a built-in model. 2. Keep them as separate entries, for example: - Claude Sonnet 5.5 (Cursor) - Claude Sonnet 5.5 (Custom / BYOK) 3. Custom entry must use OpenAI API Key + Override Base URL. 4. Built-in entry continues to use Cursor’s channel and subscription quota. Why it matters: Providers often use IDs like `claude-sonnet-5-5`. Forcing a different name breaks compatibility and makes model selection confusing. Same name + different channel is the expected setup for BYOK / custom endpoints. ---
**Author:** ![Colin](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/colin/32/90452_2.png) [@Colin](https://forum.cursor.com/u/Colin)\ **Post date:** [October 29, 2026, 4:53pm UTC](https://forum.cursor.com/t/allow-custom-models-with-same-similar-ids-as-built-in-models-routed-via-override-base-url/176604/3 "2026-10-29T16:53:41Z")
Split this topic on October 29, 2026, 4:53pm UTC 3 posts were merged into an existing topic: [Cursor-managed models are routed through Override OpenAI Base URL](https://forum.cursor.com/t/cursor-managed-models-are-routed-through-override-openai-base-url/169088) ---
**Author:** ![Colin](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/colin/32/90452_2.png) [@Colin](https://forum.cursor.com/u/Colin)\ **Post date:** [October 29, 2026, 4:53pm UTC](https://forum.cursor.com/t/allow-custom-models-with-same-similar-ids-as-built-in-models-routed-via-override-base-url/176604/5 "2026-10-29T16:53:41Z")
Closed on October 29, 2026, 4:53pm UTC