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5 changes: 5 additions & 0 deletions .changeset/soft-falcons-summarize.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
'@tanstack/ai': patch
---

Fix provider-specific model options inference for TTS, transcription, and summarize activities.
9 changes: 5 additions & 4 deletions packages/ai/src/activities/generateSpeech/index.ts
Original file line number Diff line number Diff line change
Expand Up @@ -35,10 +35,11 @@ export const kind = 'tts' as const
/**
* Extract provider options from a TTSAdapter via ~types.
*/
export type TTSProviderOptions<TAdapter> =
TAdapter extends TTSAdapter<any, any>
? TAdapter['~types']['providerOptions']
: object
export type TTSProviderOptions<TAdapter> = TAdapter extends {
'~types': { providerOptions: infer P extends object }
}
? P
: object

// ===========================
// Activity Options Type
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9 changes: 5 additions & 4 deletions packages/ai/src/activities/generateTranscription/index.ts
Original file line number Diff line number Diff line change
Expand Up @@ -35,10 +35,11 @@ export const kind = 'transcription' as const
/**
* Extract provider options from a TranscriptionAdapter via ~types.
*/
export type TranscriptionProviderOptions<TAdapter> =
TAdapter extends TranscriptionAdapter<any, any>
? TAdapter['~types']['providerOptions']
: object
export type TranscriptionProviderOptions<TAdapter> = TAdapter extends {
'~types': { providerOptions: infer P extends object }
}
? P
: object

// ===========================
// Activity Options Type
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19 changes: 7 additions & 12 deletions packages/ai/src/activities/summarize/index.ts
Original file line number Diff line number Diff line change
Expand Up @@ -25,10 +25,11 @@ export const kind = 'summarize' as const
// ===========================

/** Extract provider options from a SummarizeAdapter via ~types */
export type SummarizeProviderOptions<TAdapter> =
TAdapter extends SummarizeAdapter<any, any>
? TAdapter['~types']['providerOptions']
: object
export type SummarizeProviderOptions<TAdapter> = TAdapter extends {
'~types': { providerOptions: infer P extends object }
}
? P
: object

// ===========================
// Activity Options Type
Expand Down Expand Up @@ -159,18 +160,12 @@ export function summarize<

if (stream) {
return runStreamingSummarize(
options as SummarizeActivityOptions<
SummarizeAdapter<string, object>,
true
>,
options as SummarizeActivityOptions<TAdapter, true>,
) as SummarizeActivityResult<TStream>
}

return runSummarize(
options as SummarizeActivityOptions<
SummarizeAdapter<string, object>,
false
>,
options as SummarizeActivityOptions<TAdapter, false>,
) as SummarizeActivityResult<TStream>
}

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