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Skills2026-03-16 · source-backed
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
Each link below shares sources, entities, or timing with this story.
Shared entity: Semantic / Shared topic / What happened next / Tension
Both cover Semantic; overlapping topics (budget, semantic); picks up the Semantic thread on 2026-08-05.
Shared entity: Prompt / Shared topic / What happened next
Both cover Prompt; overlapping topics (month, prompt); picks up the Prompt thread on 2026-07-29.
Both cover Prompt; overlapping topics (caching, prompt); picks up the Prompt thread on 2026-07-16.
Shared entity: Combined / Shared topic / What happened next
Both cover Combined; overlapping topics (combined, layer); picks up the Combined thread on 2026-06-24.
Shared entity: Prompt / Shared topic / What happened next
Both cover Prompt; overlapping topics (application, prompt); picks up the Prompt thread on 2026-06-14.
Shared entity: Combined / Shared topic / What happened next
Both cover Combined; overlapping topics (combined, month); picks up the Combined thread on 2026-05-14.
Shared entity: Prompt / Shared topic / What happened next
Both cover Prompt; overlapping topics (different, prompt); picks up the Prompt thread on 2026-05-12.
Shared entity: Prompt / What happened next / Tension
Both cover Prompt; picks up the Prompt thread on 2026-07-28; pushes against this story (but).