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Troubleshooting prompt caching for OpenAI and Anthropic models in Next.js

By PulseAugur Editorial · [1 sources] ·

This technical guide explains how to troubleshoot prompt caching issues when using OpenAI and Anthropic models with the Vercel AI SDK in a Next.js application. It details how to check if caching is functioning correctly by examining specific token counts reported by each provider and the SDK. The post outlines common reasons for cache misses, such as incorrect prompt formatting, changing data within cached sections, or exceeding cache expiration times, and provides a checklist for developers to diagnose these problems. AI

IMPACT Helps developers optimize AI API costs and performance by ensuring prompt caching is correctly implemented.

RANK_REASON Technical guide on using and troubleshooting a specific software feature (prompt caching) with AI models and SDKs.

Read on dev.to — Anthropic tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Troubleshooting prompt caching for OpenAI and Anthropic models in Next.js

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22 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
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Tool
Technical guide on using and troubleshooting a specific software feature (prompt caching) with AI models and SDKs.
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Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
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product, infra
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High
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Breaking (< 6h)
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COVERAGE [1]

  1. dev.to — Anthropic tag TIER_1 English(EN) · Stack & Ship ·

    Prompt caching not working? Check it in OpenAI and Anthropic (Next.js)

    <p>You turned on prompt caching, or you were told it's on by default, and the usage numbers say nothing was cached. <code>cached_tokens</code> is 0 on OpenAI, or <code>cache_read_input_tokens</code> is 0 on Anthropic, and the bill hasn't moved. If you searched for prompt caching …

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