Vocabulary Builder
Turn any word list or topic into structured study cards at no cost.
How to Use Vocabulary Builder
1
Open Vocabulary Builder
Open Vocabulary Builder on Rewind.ai. No account needed to start.
2
Add your input
Enter your text or upload a file, then set any options Vocabulary Builder offers.
3
Get the result
Vocabulary Builder processes your request and returns the result. Download it, copy it, or share the link.
Use this tool via API
Call this tool straight from your own scripts. The endpoint follows the OpenAI REST format and signs requests with a bearer token, so client libraries you already use keep working. You are billed the same token rate as the web app.
curl -X POST https://api.rewind.ai/v1/chat/completions/ \
-H "Authorization: Bearer sk-rewind-..." \
-H "Content-Type: application/json" \
-d '{"model": "qwen/qwen-2.5-7b-instruct", "messages": [{"role": "user", "content": "..."}]}'Vocabulary Builder FAQ
Vocabulary Builder on Rewind.ai is a free AI tool. There's no charge and no sign up needed to start.
Yes. You get 2,500 free tokens per day to use Vocabulary Builder and every other tool on Rewind.ai. A free account raises that to 5,000 tokens/day. Token packs start at $5.
Vocabulary Builder sends your request to an AI model and shows the result on the page. Some models run on our own GPUs, others through their providers.
No. You can use Vocabulary Builder right away without signing up. A free account doubles your daily usage to 5,000 tokens and saves your history.
Anonymous users get 2,500 tokens/day. Free accounts get 5,000 tokens/day. Tokens reset every 24 hours. Each generation costs ~100-5,000 tokens depending on the operation.
We don't sell your data or use it to train models, and we delete it on request.
In most cases, yes. What you generate is yours to use, and commercial use follows our Terms and the license of the model that made it. Don't use other people's likeness or copyrighted material without permission.
Vocabulary Builder lets you start on free daily tokens and pay only when you need more, with token packs from $5 or a monthly plan.
Vocabulary Builder uses the model shown in its model picker, or Rewind's default model for the task when the page has no picker. We update to newer models as they ship.
Yes. Vocabulary Builder works in any mobile browser, and the layout adapts to your screen size.
Sign up for a free account to get 5,000 tokens/day, double the anonymous limit. Or buy token packs starting at $5 for 200,000 tokens. See /pricing/ for all options.
Yes. After you generate content, you can download it, copy it, or share it via a unique link. Signed-in users can also view their generation history.