Seedance 2.5 vs Kling 4.0

Seedance 2.5 vs Kling 4.0 at a glance

Both run on the same Revana API key; switching is the model field. Prices are Revana’s, per second of video, as of November 2026.

What a clip costs on each

The price of one clip with sound at each length, at 720p and 1080p. Where a model cannot make that length in one take, the cell shows what the same seconds cost in several clips.

Where Seedance 2.5 wins

• 480p drafts. Seedance 2.5 renders at 480p for $0.09 a second; Kling 4.0 starts at 720p ($0.18). Drafting a 10 second shot costs $0.90 instead of $1.80.
• More references. Up to 30 reference images plus reference clips and sounds, against 10 images on Kling 4.0. That matters for a product shot from several angles, or a cast of characters.
• More frame shapes. 16:9, 9:16, 1:1, 4:3, 3:4, 21:9 and adaptive, against 16:9, 9:16, 1:1, 21:9. Kling 4.0 has no 4:3 or 3:4.

Where Kling 4.0 wins

• Price at 1080p. $0.27 a second against $0.52: a 30 second 1080p clip is $8.10 on Kling 4.0 and $15.60 on Seedance 2.5.
• Price at 720p. $0.18 against $0.21 a second, also with sound.
• Editing a video for less. With a video input Kling 4.0 is $0.11 a second at 720p, Seedance 2.5 $0.15.
• Shorter minimum. Kling 4.0 makes clips from 3 seconds, Seedance 2.5 from 4.

Which to use

For finished 1080p footage on a budget, start with Kling 4.0. For cheap 480p iterations, many references, or 4:3 and 3:4 frames, start with Seedance 2.5. Their looks differ shot by shot, so render the same prompt on both at the lowest resolution before you commit.

Test both with one prompt

Picture quality is a matter of the shot, so the honest test is your own prompt on both. Quote both first (free), then render each at its lowest resolution.

export REVANA_API_KEY="sr_live_..."
# Same prompt on both models at their lowest resolution. Quotes are free: check them first.
for PAIR in seedance-2.5:480p kling-4.0:720p; do
  MODEL=${PAIR%%:*}; RES=${PAIR#*:}
  curl -s https://api.revana.si/v1/generations/quote \
    -H "Authorization: Bearer $REVANA_API_KEY" -H "Content-Type: application/json" \
    -d '{"model": "'$MODEL'", "input": {"prompt": "A barista pours latte art in a sunlit cafe, slow push-in, steam rising, soft jazz and cups clinking", "duration": 5, "resolution": "'$RES'", "audio": true}}'
  echo
done
# Then create each one with the request in the API section of /seedance-2-5, and compare the two clips.

From Claude or ChatGPT, ask the Revana MCP server: “Quote this prompt on Seedance 2.5 and Kling 4.0 at the lowest resolution, then make both.”