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AI-coached CASPer practice questions and full mock tests

Ace the Duolingo English Test with AI scoring and 18,000+ practice questions

AI-graded TOEFL practice tests with instant scores and feedback

Next-gen text-to-video and image generation studio from Kuaishou

Learn to code free with hands-on lessons and instant playgrounds

Learn Linux, DevOps, and cybersecurity by doing — inside real online labs.

Practise PTE Academic and PTE Core free, with AI scoring for speaking and writing

Study smarter for IELTS, TOEIC and HSK with AI speaking and writing rooms

PTE practice tests with instant AI scoring and realistic mock exams

AI English speaking coach with instant pronunciation feedback

Generate and edit cinematic video and images in one AI studio

Run any ComfyUI or open-source AI workflow in your browser

Pay-as-you-go SkyReels V4 video generation API on an independent marketplace

All-in-one AI video generator with 50+ top models, effects and avatars

A collaborative AI agent with its own computer, browser and tools for apps, research, docs and design

Free practical deep learning courses, research and open-source libraries

Real-time AI interview copilot and prep coach in one platform

Cinematic AI video from a prompt or a single photo

One REST endpoint for text-to-video and image-to-video generation

Alibaba's unified audio-video model, on one API key

Create Kling 4.0 videos from text, images and keyframes

VRAM, throughput and GPU cost calculators plus courses for open-weight LLM deployment

ByteDance's Seedance 2 video model via API with native audio and multi-shot storytelling

Open-source AI video generation with synchronized audio in one pass