Kling 2.6 vs 3.0: length, resolution, audio and price

Kling 3.0 makes 3–15 second clips at 720p, 1080p or 4K, with native audio and multi-shot generation. Kling 2.6 makes single shots of 5 or 10 seconds at 720p or 1080p, with sound only at 1080p and first/last-frame clips only as 1080p silent video. On Kling's API, 3.0 costs more per second at the same resolution and audio setting.

The specs and prices below are Kling's own, from its API video capability map and video pricing pages, read on 2026-09-29. What Sume offers is at the end, from its Video generation docs and pricing code.

How do Kling 2.6 and 3.0 differ?

Kling describes 3.0 as “Enhanced native audio, improved element consistency, and support for multi-shot storytelling” and 2.6 as “See the sound, hear the visual”. Its capability map reads:

How much more does Kling 3.0 cost than 2.6?

Kling's API bills both per second, as resource-package units with a dollar price per unit. At every resolution and audio setting both versions list, 3.0 costs more per second. For a 10-second 1080p clip with audio and no voice control, that is $1.40 on 2.6 and $1.68 on 3.0 at Kling's list prices.

Should I switch from Kling 2.6 to 3.0?

• Stay on 2.6 if 5- or 10-second single shots at 720p or 1080p cover your work, and the lower per-second price matters.
• Stay on 2.6 if you use voice control in image to video; the capability map lists it for 2.6, not 3.0.
• Move to 3.0 if you need clips longer than 10 seconds, multi-shot, 4K, audio at 720p, or first/last-frame clips outside 2.6's 1080p-silent limit.
• Move to 3.0 if you use element control; 2.6 does not support it. Kling 3.0 vs 3.0 Omni covers the other 3.0 variants.

Can I call Kling 2.6 or Kling 3.0 through Sume?

Only Kling 3.0. Sume's video model ids include kling-3 and no Kling 2.6 id. In current catalog code kling-3 takes 4–15 seconds, text to video or a first and end frame, aspect ratios 16:9, 9:16 and 1:1, and no reference images or videos. It is billed at the provider list × 1.25: $0.14 a second silent and $0.21 with audio, plus a 5.5% agent fee by default. Kling 3.0 API shows the call.