How to Generate AI Video from Text — Complete 2026 Guide
To generate AI video from text in 2026: (1) choose a text-to-video model like Google Veo 3.1, OpenAI Sora 2 Pro, or Kling v3 Pro; (2) write a specific prompt describing subject, action, camera motion, and style; (3) set duration (5–10 seconds typical) and resolution (HD or 4K); (4) run the generation and download. Oakgen.ai lets you do this across 30+ models in one platform starting at $9/month.
TL;DR
- Pick a frontier model — Veo 3.1, Sora 2 Pro, or Kling v3 Pro for best quality
- Write prompts with subject + action + camera + style + lighting
- Start with 5-second HD clips; upgrade to 4K once you've validated the shot
- Cost per clip ranges from ~$0.30 (Kling Turbo) to ~$2 (Sora 2 Pro 4K)
- Use image-to-video for tighter control over the opening frame
What Is Text-to-Video AI?
Text-to-video AI uses diffusion transformer models trained on millions of video clips to generate new footage from a written description. The 2025–2026 generation (Veo 3.1, Sora 2 Pro, Kling v3) produces photoreal 5–10 second clips with coherent motion, camera physics, and audio sync.
Which Model Should You Use?
For cinematic quality with camera control: Google Veo 3.1 or OpenAI Sora 2 Pro. For fast iteration and low cost: Kling v2.5 Turbo Pro or LTX Video 2.0 Fast. For physics-heavy action: MiniMax Hailuo 2.3 Pro. For character consistency: Runway Gen-4 Turbo.
How Much Does It Cost?
On Oakgen.ai, a 5-second HD clip costs roughly 50–200 credits (~$0.25–$1.00) depending on model. The free plan (1,000 credits) lets you generate about 5–15 clips. The $19/month Pro plan unlocks 5,000 credits — roughly 25–80 clips/month across any models.
Step-by-Step
- Step 1
Choose Your Text-to-Video Model
Open Oakgen's AI Video Generator and select a model. Start with Kling v2.5 Turbo Pro for fast, cheap iteration. Move to Veo 3.1 or Sora 2 Pro once you've locked the shot.
- Step 2
Write a Specific Prompt
Include 5 elements: subject, action, camera motion, style, lighting. Example: 'A red sports car drifting around a mountain corner, crash zoom into the driver, cinematic, golden hour lighting, motion blur.'
- Step 3
Set Duration and Resolution
5 seconds is standard. Use HD for drafts to save credits. Upgrade to 4K on your best shot once validated.
- Step 4
Generate and Review
Click Generate. Most models return in 30–90 seconds. Review the output — if motion or subject is wrong, refine the prompt and re-run.
- Step 5
Iterate and Upscale
Generate 3–5 variants, pick the best, and upscale to 4K with Oakgen's Video Upscaler. Add voice-over and music in the same platform.
FAQ
What is the best AI model for text-to-video in 2026?
For photoreal cinematic output, Google Veo 3.1 and OpenAI Sora 2 Pro lead. For speed and cost, Kling v2.5 Turbo Pro. For physics, MiniMax Hailuo 2.3 Pro. Oakgen includes all of these.
How long can AI-generated videos be?
Most current models generate 5–10 second clips. For longer videos, generate multiple clips and chain them together with consistent prompts.
Are AI-generated videos commercially usable?
On Oakgen paid plans, yes — all generated video carries full commercial rights. Check model-specific licensing if publishing to strict platforms.
Can I turn an image into a video?
Yes. Image-to-video is supported by Kling v3, Runway Gen-4 Turbo, Luma Ray 2, and others. Upload an image and describe the motion you want.
Related
Try Oakgen Free
1,000 free credits. No credit card required.
Start Generating AI Video Free