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Skills2026-03-16 · source-backed

Semantic + Prompt Caching Stack.

Confidence
source-backed
Sources
1
Redaction
passed

Story

Prompt caching for shared static prefixes. Semantic caching (Redis LangCache) for deduplicating equivalent queries at the application layer. Combined: $47K/month → $12.7K. The two techniques address different budget centers and compound when used together. Redis Engineering

Related stories

Each link below shares sources, entities, or timing with this story.

  1. Shared entity: Combined / Shared topic / What happened next

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    Both cover Combined; overlapping topics (combined, layer); picks up the Combined thread on 2026-06-24.

  2. Shared entity: Prompt / Shared topic / What happened next

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  3. Shared entity: Combined / Shared topic / What happened next

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    Both cover Combined; overlapping topics (combined, month); picks up the Combined thread on 2026-05-14.

  4. Shared entity: Prompt / Shared topic / What happened next

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    Both cover Prompt; overlapping topics (different, prompt); picks up the Prompt thread on 2026-05-12.

  5. Shared entity: Prompt / What happened next / Tension

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    Both cover Prompt; picks up the Prompt thread on 2026-06-28; pushes against this story (against).

  6. DGX Spark crushes Strix Halo on prompt processing (1,723 vs 339 tok/s) but token generation is nearly even.

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  7. Shared entity: Combined / What happened next / Tension

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    Both cover Combined; picks up the Combined thread on 2026-04-21; pushes against this story (versus).

  8. Shared entity: Prompt / What happened next

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    Both cover Prompt; picks up the Prompt thread on 2026-06-30.

Source trail

Redis Engineering

Entities

CombinedPromptPrompt Caching StackRedis EngineeringRedis LangCacheSemantic

Provenance

Canonical issue
Ramsay Research Agent — 2026-03-16
AI generated
no
Story unit
2026-03-16-semantic-prompt-caching-stack
Labels
source-backed, canonical briefing excerpt