feat(provider/openai): allow configuring base URL via OPENAI_BASE_URL#8990
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gr2m merged 6 commits intovercel:mainfrom Sep 30, 2025
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feat(provider/openai): allow configuring base URL via OPENAI_BASE_URL#8990gr2m merged 6 commits intovercel:mainfrom
gr2m merged 6 commits intovercel:mainfrom
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I confirmed that the official OpenAI SDK supports But it's not documented on their website: We will add support for it but not document it for now, following OpenAI's example |
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can you please follow the checklist of the pull request template? We can move ahead with the change
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…#8990) ## Background Some deployments need to target an OpenAI-compatible endpoint (e.g. self-hosted proxy, regional gateway). The OpenAI provider currently hardcodes the API base URL, which makes this inconvenient. ## Summary - Add support for configuring the API base URL via the `OPENAI_BASE_URL` environment variable and the `baseURL` option on the provider. - Continue to default to `https://api.openai.com/v1` when not provided. - Applies consistently across chat, completion, responses, embeddings, image, transcription, and speech models. ## Manual Verification - Set `OPENAI_BASE_URL` to a custom endpoint (e.g. `https://api.openai-proxy.example/v1`). - Initialize via `createOpenAI()` and call `openai.responses(/* modelId */)`; requests target the configured host. - Unset the env var and omit `baseURL`; requests fall back to `https://api.openai.com/v1`. - Also verified that an explicit `baseURL` option takes precedence over the env var. ## Related Issues Fixes #8564 --------- Co-authored-by: Gregor Martynus <39992+gr2m@users.noreply.github.com>
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✅ Backport PR created: #9052 |
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Background
Some deployments need to target an OpenAI-compatible endpoint (e.g. self-hosted proxy, regional gateway). The OpenAI provider currently hardcodes the API base URL, which makes this inconvenient.
Summary
OPENAI_BASE_URLenvironment variable and thebaseURLoption on the provider.https://api.openai.com/v1when not provided.Manual Verification
OPENAI_BASE_URLto a custom endpoint (e.g.https://api.openai-proxy.example/v1).createOpenAI()and callopenai.responses(/* modelId */); requests target the configured host.baseURL; requests fall back tohttps://api.openai.com/v1.baseURLoption takes precedence over the env var.Checklist
pnpm changesetin the project root)pnpm prettier-fixin the project root)Future Work
OPENAI_BASE_URLalongside other provider configuration in the docs.Related Issues
Fixes #8564