The 30-second summary
+ What we liked
- Zero registration required
- Fastest speed — 68 TPS
- Cross-domain API calls supported
- 40+ model variants
− What we didn't
- No SLA or uptime guarantee
- Open-source models only
- Not suitable for production use
In-depth review
AI Tools costs $0 per month — literally nothing to start. No credit card, no registration, just a URL and you’re making API calls to 40+ open-source model variants.
But free comes with trade-offs. This review drills into what you’re actually paying (nothing), what you’re getting (68 TPS peak speed), and whether that’s worth your time compared to direct API access or paid relay services.
Pricing Breakdown: What “Free” Actually Means
| Plan | Cost | Models Available | Max Tokens | Speed |
|---|---|---|---|---|
| Free (no registration) | $0/month | 40+ open-source variants | 32,768 | Up to 68 TPS |
| Direct API (Alibaba Cloud) | ¥0.5-¥8/million tokens | Qwen 2.5-72B only | 128K | 20-40 TPS |
| Direct API (DeepSeek) | ¥1/million tokens | DeepSeek V3 only | 128K | 30-50 TPS |
There are no per-token rates, no hidden fees, no batch discounts — because there’s no billing system at all. You hit the endpoint, you get tokens. That’s it.
The catch? Uptime sits at 95.0%. For a free service, that’s not bad — but compare to paid relays that offer 99.5%+ with SLA guarantees. Three days of downtime per month is a real risk if you’re building anything that needs to stay live.
Cost Comparison vs Direct API
Let’s run the numbers on a typical dev workflow: 10 million input tokens + 2 million output tokens per month.
AI Tools (free relay): $0. You lose nothing but time when it’s down.
Direct Qwen 2.5-72B (Alibaba Cloud): ¥0.5/million input, ¥2/million output = ¥5 + ¥4 = ¥9/month (~$1.25 USD).
Direct DeepSeek V3 Lite: ¥1/million flat = ¥12/month (~$1.65 USD).
So the financial difference is pocket change. The real value of AI Tools is zero friction — no account creation, no billing setup, no credit card verification. For a 10-minute prototype or a one-off script, that’s gold.
For production workloads? The math flips. You’d pay $1-2/month for direct access with 99.9% uptime and full context windows. AI Tools caps at 32,768 tokens and offers zero SLA.
Hidden Costs to Watch For
There are no monetary hidden costs, but there are opportunity costs:
- No model persistence. The relay may route your request to different model sizes (Qwen 2.5-7B vs 72B) depending on load. You can’t pin a specific variant.
- Rate limiting is undocumented. No public throttle limits means your batch jobs might fail silently.
- No refund policy. Since there’s no payment, there’s nothing to refund. But also no support if your requests fail.
Compare to paid relays that let you set max spend alerts, view real-time usage dashboards, and get priority routing.
Pros & Cons
Pros:
- Zero registration — hit the API immediately
- Fastest speed in this review set at 68 TPS
- 40+ model variants from Qwen, GLM, DeepSeek, Llama, Mistral
- Supports 支付宝 and 微信支付 if you eventually upgrade
Cons:
- 95% uptime with no SLA guarantee
- Open-source models only — no GPT-4, Claude, or Gemini
- 32,768 max token limit (half of what direct APIs offer)
- Not suitable for production — no refunds, no support, no billing
Verdict
AI Tools is the best option for one specific use case: rapid prototyping with zero commitment. If you need to test Qwen 2.5-72B against Mistral 7B in five minutes without creating an account anywhere, this is the fastest path.
For production workloads, skip it. The 5% downtime risk and 32K context cap make it unreliable for anything customer-facing. Pay the $1-2/month for direct API access instead.
For Chinese developers specifically: the 支付宝/微信支付 support is nice, but since the service is free, you won’t use it. The real advantage is bypassing VPN requirements while testing open-source models at 68 TPS.
FAQ
Is AI Tools really free with no registration?
Yes. No account, no credit card, no email verification. You get a URL and start making API calls immediately. There is no paid tier — it’s entirely free.
What’s the catch with 95% uptime?
It means roughly 36 hours of downtime per month. For a hobby project or one-off script, that’s fine. For a production app serving users, that’s unacceptable. There is no SLA or compensation if the service goes down.
Can I use GPT-4 or Claude through AI Tools?
No. The platform only supports open-source models: Qwen 2.5 (7B-72B), GLM-4V, DeepSeek V3 Lite, Llama 3 (8B-70B), and Mistral 7B. No proprietary models are available.
How does 68 TPS compare to direct API calls?
68 TPS is faster than most direct API endpoints. For comparison, Alibaba Cloud’s Qwen API typically delivers 20-40 TPS. The speed comes from the relay’s infrastructure, but it may vary based on load and model size.
What payment methods are supported?
支付宝 and 微信支付 are listed, but since the service is free, you won’t need them. No credit cards, no PayPal, no international payment options.
Pricing breakdown
AI Tools offers competitive pricing for developers. Here's the breakdown:
| Plan | Price | Quota | Best for |
|---|---|---|---|
| Free | $0/mo | Free trial | Kicking the tires |
| Standard RECOMMENDED | Pay-as-you-go/mo | Unlimited usage | Solo devs · small teams |
| Enterprise | Custom | SLA · dedicated support | Teams & agencies |
Supported models
5 models across major vendors.
Frequently asked questions
Can I access this platform from China without a VPN?
Most relay stations are accessible from Chinese ISPs. Check our review for specific routing details.
What payment methods are accepted?
Payment options vary by platform. Some accept Alipay/WeChat Pay, others are USD/crypto only.
How does this compare to using OpenAI directly?
Relay stations add routing latency but provide access from restricted regions, unified billing, and multi-model fallback.
Is my API key safe?
Keys are encrypted at rest. Most platforms support per-project scoping and IP allow-lists.
Should you use AI Tools?
Zero-registration free relay for open-source models. Ultra-fast (68 TPS) with 40 model variants.