别再花钱调APIKey了!2026最全免费大模型合集,国内外直连、不限额度都有 - (English)

Generated: 2026-06-20 06:49:03

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Let me start with a story.

During the Spring and Autumn period, Guan Zhong of Qi reformed the military. He decreed that any commoner who joined the army would receive weapons from the state. You think he was foolish? No. He realized something: weapons were too expensive for ordinary people to buy, but the state could manufacture them in bulk. So he spread the cost across every citizen. The result? Qi’s military strength doubled.

That exact logic applies to the large-model market in 2026.

Here’s the thing—the biggest pain point in AI development today isn’t that the models aren’t powerful enough. It’s that the APIs are too expensive. Maybe you’re spending thousands a month on API keys, thinking it’s a necessary cost.

But the truth is, you’re being milked.

And now I have to tell you a counterintuitive fact: in 2026, the free model ecosystem is already richer than the paid one. The problem isn’t that there are no free APIs—it’s that you don’t know where to claim them.

Let’s start with the domestic players.

Alibaba Cloud Bailian gives new users a quota of 70 million tokens. Note that—not one million, but 70 million. Plus an additional million per single model. It supports Qwen3.6-Plus, the entire Tongyi Qianwen series, and even DeepSeek. And the context window? One million tokens. What does that mean? It can read an entire book in one go.

This isn’t a trial. It’s a giveaway.

Next, SiliconFlow. After identity verification, you get a 16-yuan voucher. Not a lot of money, but enough for hundreds of calls. And the model lineup includes MiniMax-M2.5, GLM-5, Kimi-K2.5, and DeepSeek-V3.2. Ready to use out of the box, blazing fast.

What surprised me the most is Baidu’s ERNIE 4.5 series. Its capabilities are close to GPT-4o, with exceptionally strong Chinese comprehension. And the kicker—ERNIE 4.5 Turbo and Speed are completely free. I mean completely free, not a trial.

Then there’s the overseas scene. That’s where it gets insane.

Nvidia is straight-up handing out H100 compute power. Register and get an API key valid for up to a year. It supports all major models. No token billing, no balance threshold. You can set it up in three minutes.

Then there are Fireworks, Baseten, Nebius… more than a dozen platforms, all offering free trial quotas.

The most outrageous one is Gemini Code Assist. Six thousand free calls per day. That’s 180,000 calls a month. Among all free IDEs, it’s arguably the most ridiculous.

So how do you use them?

The key technique is called “multi-key polling.” Like guerrilla fighters rotating positions, you rotate keys from different platforms. This way, you can achieve near-zero-cost development.

But I have to give you a heads-up: free is the most expensive. Some platforms have rate limits, and complex tasks aren’t as stable as the paid versions. So my advice is—use paid flagship services for core tasks as a safety net, and burn through free quotas for daily work.

One sentence to sum it up:

In 2026, the tools are already free. What’s truly scarce isn’t money—it’s whether you’re willing to spend three minutes to sign up.

What’s free has never been the resource itself. It’s your imagination for a new world.