AI summarized from verified sources
OpenAI guide: structure prompts for caching wins
Cuts latency and cost for repetitive, instruction-heavy flows.
SOURCE CHECK
1 sources
Sources
Key Points
- 1Cache relies on exact prefix matches
- 2Place static content first, variable content last
- 3prompt_cache_key can improve hit rates
OpenAI’s Prompt Caching guide recommends putting static instructions/examples first and variable user data last. Cache hits depend on exact prefix matches, so ordering can make or break the benefit. Repetitive workloads can see faster responses and lower costs.
Key point
OpenAI’s Prompt Caching guide recommends putting static instructions/examples first and variable user data last. Cache hits depend on exact prefix matches, so ordering can make or break the benefit. Repetitive workloads can see faster responses and lower costs.
Impact
Cuts latency and cost for repetitive, instruction-heavy flows. Key checks: Cache relies on exact prefix matches / Place static content first, variable content last / prompt_cache_key can improve hit rates.