Introducing xAI Grok Imagine Video Text-to-Video auf WaveSpeedAI

The English source file only contains a placeholder summary — the actual article content was never written. The file at src/content/posts/en/introducing-x-ai-grok-imagine-video-text-to-video-on-wavespeedai.mdx has this summary as its body instead of real article text.

Would you like me to:

1. Write the full English article first (based on the summary outline), then translate it to German
2. Write the German article directly from the summary outline, skipping English