AI Tools costs $0 per month. That is the entire pricing story for the base tier — no per-token fee, no minimum recharge, no credit card required. But free comes with hard limits: you get 40 open-source model variants, a 32,768 token cap, and 95% uptime.

Pricing Breakdown: The Free Tier Reality

AI Tools operates on a single pricing model: free. There are no per-million token rates, no batch discounts, and no hidden per-request overhead fees. You pay nothing to start, and you pay nothing to keep using it. The trade-off is model selection: you are restricted to the 7 models listed, all open-source variants like Qwen 2.5 (7B-72B) and DeepSeek V3 Lite. No GPT-4, no Claude, no Gemini. The free trial requires no registration — just hit the affiliate URL and start making API calls. There is no credit card requirement. This is a genuine zero-barrier entry point. However, the lack of a minimum recharge amount means there is no path to upgrade to paid tiers or access closed-source models. Bottom line: AI Tools is the cheapest option because it is free, but you get exactly what you pay for — limited models, no SLA, and no production guarantees.

Cost Comparison vs Direct API Access

Direct API access to models like Qwen 2.5 or DeepSeek V3 Lite typically costs $0.15–$0.50 per million input tokens on platforms like Alibaba Cloud or DeepSeek’s own API. AI Tools eliminates that per-token cost entirely. For a developer running 1,000 requests per day with 2,000 tokens each, that saves roughly $0.30–$1.00 daily — or $100–$300 annually. But the comparison breaks down on reliability. Direct APIs offer 99.9%+ uptime SLAs and dedicated support. AI Tools offers 95% uptime with no guarantee. If your application needs consistent availability, the free savings vanish when the service drops. Key takeaways:

  • No per-token fees means zero variable cost for high-volume testing
  • 95% uptime vs 99.9%+ from direct APIs — not a production trade-off
  • Free tier removes financial risk for prototyping and experimentation

Hidden Fees and Overhead

There are no hidden fees. No per-request surcharge, no minimum top-up, no batch discount thresholds to navigate. The only overhead is the 32,768 max token limit — if your prompts exceed that, you cannot use the service. For typical chat completions and code generation, that is sufficient. For long document analysis or multi-turn conversations, it becomes a bottleneck. The payment methods listed (Alipay, WeChat Pay) suggest the platform is China-focused, but since the service is free, you never need to use them. This is a clean, no-fuss pricing model. Key takeaways:

  • No hidden fees — the free tier is genuinely free
  • 32,768 token cap is the only real constraint
  • Payment methods exist but are irrelevant for free usage

Pros & Cons

Pros

  • Zero registration and zero cost entry
  • Fastest speed in the relay space — 68 TPS
  • Cross-domain API calls supported
  • 40+ model variants under the 7 model families Cons
  • No SLA or uptime guarantee (95% uptime)
  • Open-source models only — no access to GPT-4, Claude, Gemini
  • Not suitable for production use due to reliability and model limits
  • 32,768 max token cap limits long-context applications

Verdict

AI Tools is the cheapest option for Chinese developers who need zero-cost, zero-registration access to open-source LLMs. It is ideal for prototyping, educational use, and low-stakes experimentation. Do not use it for production workloads — the 95% uptime and lack of SLA will bite you. If you need closed-source models or production reliability, look elsewhere. But for a free relay that just works, AI Tools delivers exactly what it promises.

FAQ

Is AI Tools really free, or is there a catch? It is genuinely free. No credit card required, no registration, no per-token charges. The catch is model selection — you are limited to open-source variants only. Can I use AI Tools for production applications? Not recommended. With 95% uptime and no SLA, the service can drop without notice. The 32,768 token cap also limits complex workflows. How does AI Tools compare to paying for direct API access? For high-volume testing, AI Tools saves $100–$300 annually versus direct APIs. But direct APIs offer 99.9%+ uptime and closed-source model access. Choose based on reliability needs. What models are available on AI Tools? Qwen 2.5 (7B-72B), GLM-4V, DeepSeek V3 Lite, Llama 3 (8B-70B), and Mistral 7B. No GPT-4, Claude, or Gemini. Do I need to recharge or pay for anything? No. The service is entirely free. Payment methods (Alipay, WeChat Pay) are listed but never needed.

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.