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fix byok-opencode: route non-OpenAI openai-protocol hosts to @ai-sdk/openai-compatible #5344

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Merged
AmyShang-alt merged 1 commit into from
Jul 10, 2026
Merged

fix byok-opencode: route non-OpenAI openai-protocol hosts to @ai-sdk/openai-compatible #5344

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25 changes: 23 additions & 2 deletions apps/daemon/src/runtimes/byok-opencode.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -158,6 +158,15 @@ function isExactOrigin(value: string, origin: string): boolean {
}
}

function isRealOpenAIHost(baseUrl: string): boolean {
if (!baseUrl) return true;
try {
return new URL(baseUrl).hostname === 'api.openai.com';
} catch {
return true;
}
}

function buildProviderEntry(
protocol: ByokChatProviderConfig['protocol'],
baseUrl: string,
Expand Down Expand Up @@ -207,11 +216,23 @@ function buildProviderEntry(
},
};
case 'openai':
// Real OpenAI speaks the Responses API via @ai-sdk/openai. Every other
// host under the "openai" protocol (DeepSeek, vLLM, etc.) only serves
// /chat/completions, so route it through @ai-sdk/openai-compatible.
if (isRealOpenAIHost(baseUrl)) {
return {
npm: '@ai-sdk/openai',
options: {
...apiKeyOption,
...(baseUrl ? { baseURL: baseUrl } : {}),
},
};
}
return {
npm: '@ai-sdk/openai',
npm: '@ai-sdk/openai-compatible',
options: {
baseURL: baseUrl,
...apiKeyOption,
...(baseUrl ? { baseURL: baseUrl } : {}),
},
};
case 'senseaudio':
Expand Down
25 changes: 24 additions & 1 deletion apps/daemon/tests/runtimes/byok-opencode.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -74,6 +74,29 @@ describe('byok-opencode runtime config', () => {
});
});

it('routes OpenAI-protocol BYOK with a non-OpenAI base URL to the OpenAI-compatible provider package', () => {
expect(buildOpenCodeByokProviderConfig(
{ protocol: 'openai', apiKey: 'sk-deepseek', baseUrl: 'https://api.deepseek.com' },
'deepseek-v4-pro',
)?.config).toMatchObject({
provider: {
[BYOK_OPENCODE_PROVIDER_ID]: {
npm: '@ai-sdk/openai-compatible',
options: {
baseURL: 'https://api.deepseek.com',
apiKey: `{env:${BYOK_OPENCODE_API_KEY_ENV}}`,
},
},
},
});
expect(buildOpenCodeByokProviderConfig(
{ protocol: 'openai', apiKey: 'sk-openai', baseUrl: 'https://api.openai.com' },
'deepseek-v4-pro',
)?.config).toMatchObject({
provider: { [BYOK_OPENCODE_PROVIDER_ID]: { npm: '@ai-sdk/openai' } },
});
});

it('normalizes origin-only native provider base URLs for OpenCode provider packages', () => {
expect(buildOpenCodeByokProviderConfig(
{ protocol: 'anthropic', apiKey: 'sk-ant', baseUrl: 'https://api.anthropic.com' },
Expand Down Expand Up @@ -272,7 +295,7 @@ describe('byok-opencode runtime config', () => {
expect(out?.config).toMatchObject({
provider: {
[BYOK_OPENCODE_PROVIDER_ID]: {
npm: '@ai-sdk/openai',
npm: '@ai-sdk/openai-compatible',
options: {
baseURL: 'http://127.0.0.1:8000/v1',
},
Expand Down
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