> ## Documentation Index > Fetch the complete documentation index at: https://docs.wrldwide.ai/llms.txt > Use this file to discover all available pages before exploring further. # 常见问题 > WRLDWIDE AI 常见问题 # Frequently Asked Questions ## 常规 ### What is WRLDWIDE AI? WRLDWIDE AI is a comprehensive AI creative platform for e-commerce. Access 19 image models, 45+ video model variants across 15+ model families, and build visual workflows with 36 node types—all in one place. ### Who is WRLDWIDE AI for? * E-commerce brands * Marketing agencies * Content creators * Designers and studios * Anyone creating visual content at scale ### Do I need technical skills? No. WRLDWIDE AI is designed for users of all skill levels. The visual interface makes AI accessible to everyone. *** ## Pricing & Credits ### How do credits work? Each feature costs credits based on computational resources: * Images: 1-4 credits * Videos: 8-24 credits (duration-dependent) * Other features: 1-6 credits ### What happens if I run out of credits? * **Subscription:** Buy additional credits or wait for monthly renewal * **Pay-As-You-Go:** Purchase more credits anytime ### Do credits expire? * **Subscription:** Yes, credits renew monthly (don't roll over) * **Pay-As-You-Go:** No, credits never expire ### Can I get a refund? * **Subscription:** 14-day refund for first-time customers (if unsatisfied) * **Credits:** Refunded if generation fails due to platform error ### Is there a free trial? Yes! Sign up and receive free credits to test the platform—no credit card required. *** ## 功能 ### Which models are included? **Image (19):** FLUX 2 Pro, Recraft V3, Recraft V4, Ideogram 3, Imagen 4, Imagen 4 Fast, Grok Imagine, Flux v1 (Pro/Max), Flux v2, FLUX Kontext Pro, Seedream 4.5, Nano Banana Pro, GPT-4o Image, Qwen Image, Stable Diffusion 3.5, Bria 3.2, HiDream I1/Dev/Fast. **Video (45+ variants across 15+ families):** Kling 3.0/3.0 Pro/O3/O3 Pro/2.6/2.6 Pro, Sora 2, Veo 3/3.1/2, Runway Gen-3, Grok Video, Vidu Q3, PixVerse 5/4.5, LTX-2/LTX-2 19B, Hailuo 2.3/02 (MiniMax), Seedance 1.5/1.0/1.0 Pro, WAN 2.6/2.5/2.2/Effects, MMAudio V2. ### Can I use generated content commercially? Yes! All plans include full commercial usage rights. No attribution required. ### What's the difference between plans? * **Free:** 50 credits/month, all image generation models, community support * **Starter (\$79/mo):** 500 credits/month, all image + video models, Cinema Studio, product photography, Shopify integration, social posting, HD exports * **Creator (\$199/mo):** 2,000 credits/month, everything in Starter plus Dark Factory pipeline, UGC ad workflows, Intelligence dashboard, AdInsight AI, advanced analytics * **Agency (\$499/mo):** 5,000 credits/month, everything in Creator plus team workspaces, AI Model Studio (LoRA), lead generation, Google Maps data, dedicated support ### How long does generation take? Times vary by model and server load: * **Images:** 5 seconds to 2 minutes (fast models \~5-15s; premium models 30-120s) * **Videos:** 1-8 minutes depending on duration, resolution, and model * **Upscaling:** 30 seconds to 3 minutes *** ## 技术 ### What file formats are supported? * **Upload:** JPG, PNG, WebP, MP4, MOV, MP3, WAV * **Download:** PNG (images), MP4 (videos) ### Is there an API? Yes! API access available on paid plans. Contact support for API documentation. ### What are the image/video size limits? * **Images:** Up to 16MB per file * **Videos:** Up to 500MB per file * **Resolution:** Varies by model (up to 4K supported) ### Can I cancel anytime? Yes. Cancel anytime from account settings. No cancellation fees. *** ## 支持 ### How do I get help? * **Documentation:** You're reading it! * **Discord:** Join our community * **Email:** [support@wrldwide.ai](mailto:support@wrldwide.ai) ### Is there phone support? Email and Discord support available. Enterprise plans include dedicated support with phone option. ### How fast is support response? * **Standard:** 24-48 hours * **Priority (Agency+):** Same day * **Enterprise:** Dedicated support *** ## 隐私与安全 ### Is my data safe? Yes. We use industry-standard security: * Encrypted data transmission * Secure cloud storage * Regular security audits * GDPR compliant ### Who owns the generated content? You do! Full commercial rights transfer to you upon generation. ### Do you store my uploads? Temporarily for processing. We recommend downloading and backing up your content. *** ## 故障排除 ### Generation failed, what do I do? 1. Check your credit balance 2. Verify input file formats 3. Try again (temporary issues happen) 4. Contact support with error details ### Results don't match my prompt? * Be more specific in prompts * Try different models * Add quality keywords * Check model-specific tips in documentation ### Video is taking too long? * Videos typically take 2-5 minutes * Longer videos (15s) take more time * High-traffic periods may have queues *** ## Still Have Questions? * **Email:** [support@wrldwide.ai](mailto:support@wrldwide.ai) * **Discord:** [Join our community](https://discord.gg/wrldwide) * **Documentation:** Browse all docs at [docs.wrldwide.ai](https://docs.wrldwide.ai)