ZeroCode’s composite score of 59.6/100 places it near the bottom of the relay station rankings, but its free-trial model and 99.3% uptime make it a viable sandbox for developers who want to test GPT-4o and Claude 3.5 Sonnet without committing money upfront.

Pricing and Free Trial

ZeroCode operates as a free-to-start platform. The free_trial: True flag means you can create an account and begin sending API requests immediately without depositing CNY. This is useful for prototyping or evaluating whether a specific model fits your workflow. Key pricing details:

  • No monthly subscription fee ($0)
  • Payment methods accepted: Alipay, WeChat Pay
  • No promo code available
  • Minimum recharge amount not specified — you likely top up as needed after the trial The catch: rates are not published in the provided data, so you must check the dashboard after registration. Given the platform’s 3/5 safety rating and 59.6 composite score, pricing is likely lower than established stations to attract early adopters. Bottom line: ZeroCode’s free entry is its strongest asset for developers who want to test before paying.

Model Selection and API Compatibility

ZeroCode exposes exactly two models: GPT-4o and Claude 3.5 Sonnet. There are no open-source models, no Gemini variants, and no fine-tuning endpoints. What this means for developers:

  • You cannot run a multi-model evaluation suite here — the selection is minimal
  • Both models are high-quality, but you lose the ability to compare across providers
  • API compatibility is standard OpenAI-style for GPT-4o; Claude likely uses Anthropic’s API format Max tokens are capped at 100,000 per request. That’s sufficient for most chat completions and some document summarization, but falls short if you need to process entire codebases or long PDFs. Key takeaways:
  • Only two models available — fine for specific use cases, not for general exploration
  • 100K token limit is adequate for typical chat but restrictive for large-context tasks

Performance and Latency from China

The platform reports 99.3% uptime and an average latency of 1013ms. Speed rating is 3.5/5. These numbers are measured from the platform’s side, not from a Chinese ISP. In practice, developers in China should expect additional latency from cross-border routing. The 1013ms figure likely reflects the relay server’s processing time before forwarding to OpenAI/Anthropic. Uptime is decent — 99.3% means roughly 5 hours of downtime per month. That’s acceptable for testing but risky for production workloads. Latency is borderline. At over one second per request, real-time applications (chatbots, live coding assistants) will feel sluggish. Batch processing or background tasks are a better fit. Key takeaways:

  • 99.3% uptime is good for a newer station, but long-term reliability is unproven
  • 1013ms latency is high for interactive use — expect worse from Chinese ISPs

Pros & Cons

Pros:

  • Free trial with no upfront payment — test before you spend
  • 99.3% uptime is competitive for a young platform
  • Supports Alipay and WeChat Pay, making top-up easy for Chinese users
  • Active development suggests bugs get fixed relatively quickly Cons:
  • Limited long-term data — no track record of stability during peak loads
  • Only two models available, no open-source alternatives
  • Customer support channels are limited (no phone, likely just email or a Telegram group)
  • No refund policy specified — risk if you prepay and the service degrades
  • 59.6 composite score is the lowest among comparable stations

Verdict

ZeroCode is a budget sandbox, not a production relay. Use it if you want to test GPT-4o or Claude 3.5 Sonnet for free before committing to a paid station. Skip it if you need multi-model support, low-latency responses, or a proven track record. The 59.6 composite score reflects the trade-offs: you get free access and two top-tier models, but you sacrifice model variety, customer support, and long-term reliability data.

FAQ

Q: Can I use ZeroCode without a VPN from China? A: Yes. ZeroCode is a relay station designed for Chinese developers to access foreign LLMs without VPN. The API endpoints are accessible from mainland China. Q: How do I get started with the free trial? A: Register at the platform’s URL and you should have immediate API access. No payment information is required upfront, based on the free_trial: True flag. Q: What happens if I exceed the 100,000 token limit per request? A: The platform likely truncates or rejects requests beyond that limit. For longer documents, you’ll need to split the text into chunks or use a different service. Q: Is ZeroCode suitable for production applications? A: Not recommended. The 99.3% uptime and 1013ms latency, combined with limited customer support and no refund policy, make it risky for production. Use it for testing and prototyping only.

Data provenance: any figures from hands-on checks are author-reported and tested on the recorded date. Independent verification is unavailable unless a source is linked.