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Prompt Caching2 articles

Prompt Caching

Articles

  • Prompt Caching Across Cloud LLM Providers: Architecture, TTL Lifecycles, and Economic Break-Even for Anthropic, OpenAI, Gemini, and DeepSeek

    The primary latency and computational bottleneck in large language model inference is the prefill phase. When an application submits a request containing thousands of tokens of static system instructions, OpenAPI tool schemas, few-shot demonstrations, and retrieved document context, the inference server must process all input tokens through every transformer layer before generating the first output token. In high-concurrency production environments, repeating this full forward pass across identi

    1 min

  • Prompt Caching in Production: Architecture, Economics, and Invalidation Pitfalls

    As multi-turn AI agents, code generation assistants, and retrieval-augmented generation (RAG) pipelines expand in production, prompt sizes routinely exceed tens of thousands of tokens per request. In these architectures, the vast majority of tokens across consecutive API calls are static: system prompts, OpenAPI tool specifications, reference documents, and accumulated conversation history. Without optimization, inference engines must re-evaluate the full attention matrix for every token on eac

    1 min