FAQ
Abnormal Status Codes:
| Status Code | Reason | Solution |
|---|---|---|
| 401 | Invalid or missing API Key | Check that the Key is entered correctly and not expired. Anthropic protocol uses x-api-key header, OpenAI protocol uses Authorization: Bearer header. |
| 403 | Model not enabled or Key disabled | Check Key status, or contact the administrator to enable the corresponding model permission. |
| 429 | Rate limit triggered (RPM/TPM exceeded) or insufficient account balance | Reduce call frequency, and first check whether the account balance is sufficient. |
| 500 | Internal server error | Retry later; if it persists, contact technical support. |
What if login fails?
Confirm the email and password are correct. After 5 consecutive failed attempts, the account will be locked for 30 minutes. Wait and retry, or use 'Forgot Password' to reset.
What if I run out of credits?
Click 'Get More Credits' on the homepage to recharge, supporting WeChat Pay / Alipay. Internal employees can contact the business team to request credit replenishment.
Why can't I see today's call data?
Usage data is T+1; today's data is available tomorrow.
Which models can Claude Code use? Can it use GPT?
Claude Code connects via the Anthropic Messages protocol and can only use models that natively support this protocol. On HiModels, the Claude series (Haiku 4.5 / Sonnet 4.6 / Opus 4.7) and DeepSeek series (V4 Flash / V4 Pro / V4 Pro Longcontext) are available. GPT and Gemini do not support the Anthropic protocol and cannot be called through Claude Code; please use Codex, Cursor, and other OpenAI protocol tools to connect.
Are Claude Code and Codex using the same endpoint?
No. Claude Code uses the Anthropic protocol at https://api.himodels.ai; OpenAI-compatible tools like Codex use the OpenAI protocol at https://api.himodels.ai/v1. The same domain routes automatically internally.
How to use DeepSeek's long context capability in Claude Code?
Specify claude --model deepseek-v4-pro-longcontext when launching, no other parameters needed.
What if file upload fails?
The current model may not support this file type; switch to a multimodal model and retry.
How to set the monthly limit when creating a Key?
It is recommended not to exceed the available account balance to avoid service interruption caused by overdraft.