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fix: add prompt_cache_key and prompt_cache_retention fields to maintain OpenAI chat completion request interface #1767

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fix: add prompt_cache_key and prompt_cache_retention fields to maintain OpenAI chat completion request interface #1767

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hustxiayang Jan 14, 2026
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Merge branch 'main' into add-prompt-key
hustxiayang Sep 25, 2026
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Merge branch 'main' into add-prompt-key
hustxiayang Oct 1, 2026
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6 changes: 6 additions & 0 deletions internal/apischema/openai/openai.go
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Expand Up @@ -1191,6 +1191,12 @@ type ChatCompletionRequest struct {
// PredictionContent provides configuration for a Predicted Output, which can greatly improve response times when large parts of the model response are known ahead of time.
PredictionContent *PredictionContent `json:"prediction,omitempty"`

// The retention policy for the prompt cache. Set to 24h to enable extended prompt caching, which keeps cached prefixes active for longer, up to a maximum of 24 hours
PromptCacheRetention string `json:"prompt_cache_retention,omitempty"`

// Used by OpenAI to cache responses for similar requests to optimize your cache hit rates.
PromptCacheKey string `json:"prompt_cache_key,omitempty"`

// WebSearchOptions configures web search tool for models that support it.
// This tool searches the web for relevant results to use in a response.
// Docs: https://platform.openai.com/docs/guides/tools-web-search?api-mode=chat
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