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AI Video — CogVideoX-2B

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モデル:
+ GPT-5, Claude, Gemini
Video model Self-hosted Apache 2.0 2B
CogVideoX-2B — Text-to-video generation model producing 4-8 second clips.
~1万枚(4sビデオ)
0%
生成を開始...

What is CogVideoX-2B?

Text-to-video generation model producing 4-8 second clips.

Best for: Short video clips from text

Why use CogVideoX-2B for video?

Text-to-video

Type a description, get a clip. Style, motion, and aspect ratio are all controllable from the form above.

Image-to-video

Animate a still by uploading it as a starting frame on the full /video/ tool — same model, more options.

Aspect ratios

16:9 for YouTube, 9:16 for TikTok and Reels, 1:1 for feed posts. Render at the right shape from the start.

Motion + camera

Pan, zoom, dolly, orbit, handheld — the full /video/ form exposes camera direction. Use the link below to switch to it.

Sample prompts

A golden retriever running through sunflowers at sunset, cinematic slow motion
A futuristic city skyline at night, neon lights, drone fly-through
A red rose blooming in time-lapse, macro shot, soft natural light
A surfer riding a perfect wave, slow motion, golden hour
An astronaut walking on a Mars-like landscape, dust kicked up by boots
A coffee being poured into a cup, steam rising, close-up

Pricing

Self-hosted on our GPUs. Generation draws from your daily free pool first; once that runs out, paid token packs start at $5 → 200,000 tokens. Roughly ~2,500 tokens per second of generated video, minimum 5,000.

Compare to alternatives

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Full model reference → · See all video models → · Compare 2 video models side-by-side →

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Want better results? プレミアムモデル (GPT-5, Claude, Gemini) deliver higher quality. View Plans

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Text-to-video generation model producing 4-8 second clips.

使い方 AI Video — CogVideoX-2B

1
入力を入力

テキストを入力、ファイルをアップロード、または必要なことを記述します。アカウントは必要ありません。

2
クリックして生成

私たちのAIは、最良のオープンソースモデルを使って、あなたの要求を数秒で処理します。

3
ダウンロードと共有

結果をダウンロード、コピー、共有できます。個人的、商業的な使用は無料です。

このツールを API で使用

あなたのコードからこのツールを自動化します。OpenAI 互換の REST エンドポイント、ベアートークン認証、追加の SDK が必要ありません。トークンのコストはウェブインターフェースと一致します。

APIドキュメント API キーを取得 
curl -X POST https://api.free.ai/v1/video/generate/ \
  -H "Authorization: Bearer sk-free-..." \
  -H "Content-Type: application/json" \
  -d '{"prompt": "A cat playing piano", "duration": 4}'

関連するフリーAIツール

AI Video Editor
AI Video Enhancer
AI Video Dubbing Studio
AI Video Translator
AI Video Effects — Pikaffects-style
AI Video Upscaler
AI Shorts Generator
AI Reels Generator

AI Video — CogVideoX-2B — FAQ

CogVideoX-2B is one of the AI video models available on Free.ai. Use the form on this page to generate a clip; below the fold you will find sample prompts, pricing, and alternatives.

On Free.ai, video generation tops out at 6 seconds per clip across all video models. To extend, use the Extend button on the full /video/ tool — it captures the last frame and continues from there.

16:9 landscape (YouTube, desktop), 9:16 portrait (TikTok, Reels, Shorts), and 1:1 square (Instagram feed). Pick the ratio in the form before you generate so the model frames the shot for that shape.

720p HD by default. Some premium models support up to 1080p — check the Compare card. You can upscale any output in /video/upscaler/ after the fact.

Strong on natural motion (people walking, cars driving, water, weather). Weaker on intricate hand interaction and fine text. Use camera-direction hints (slow pan, dolly forward) for cleaner motion.

Free.ai grants commercial use of generated videos to you regardless of model. The model itself may be Apache 2.0, MIT, or a vendor-specific license — see the model reference link below.

CogVideoX-2B runs on our own GPUs. Generation draws from your daily free pool first; once that runs out, paid token packs start at $5 → 200,000 tokens. Roughly ~2,500 tokens per second of generated video, minimum 5,000.

Yes — use /batch/ for up to 100 prompts. Each clip is queued and the result lands in /account/?tab=history when ready.

Yes — POST your prompt to /v1/video/generate/ with model="CogVideoX-2B" (or use the slug on this page). See /api/ for the full endpoint reference plus auth, error codes, and SDK snippets.

We do not store your prompts beyond the share window (24h anon, 7d signed-in). We do not train on your inputs. Self-hosted models run on Free.ai-owned GPUs.

Yes — failed jobs are auto-refunded to the original payment source (daily pool or paid tokens) the same day. Email contact@free.ai if a refund did not appear.

Typical render 30–120 seconds for a 4-second clip; premium models often finish in 15–45 seconds. Use the close-tab-safe queue button on /video/ — your result lands in /account/?tab=history when done, with optional email.

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