> ## Documentation Index
> Fetch the complete documentation index at: https://docs.jiekou.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Other Frequently Asked Questions

## 1. Where can I view conversation history?

The platform does not store user conversation data (for privacy protection). If you need conversation history, we recommend:

* Using third-party clients such as ChatBox, Cherry Studio, etc.
* Saving logs locally

## 2. Why does Prompt Caching show a hit rate of 0?

Please confirm:

1. The model you are using supports caching (such as Claude 3.5 Sonnet, GPT-4o, etc.; GPT-5-mini is not currently supported)
2. The preset prompt prefix for caching must be exactly the same (character-by-character match)
3. The first call writes to the cache (incurring write costs); subsequent calls can then result in cache hits

## 3. Are the platform models proxied or self-deployed?

Closed-source models (such as OpenAI, Claude, and Gemini) are official API proxies; some open-source models are deployed by the platform itself. All models are provided through a unified gateway for stable access.

***

**Contact Support**

If the FAQs above do not resolve your issue, please contact technical support through the following methods:

* WeCom/WeChat technical support group (recommended, fastest response)
* Information to provide:
  * Issue description + screenshots
  * Account ID (UUID)
  * Trace ID (if available, usually in the error message)
  * Request parameters (after removing sensitive information)