75 Prompts both models were run on. Each slide shows the two clips for one Prompt, with the Prompt and the human preference split underneath.
Summary and how to choose
Duration: not confirmed for Kling 2.1 Master, versus 16s or 20s for OpenAI Sora. Resolution: not confirmed for Kling 2.1 Master, versus 720p (1280x720 / 720x1280); 1024p (1792x1024 / 1024x1792, pro only); 1080p (1920x1080 / 1080x1920, pro only) for OpenAI Sora. Controls: not confirmed for Kling 2.1 Master, versus T2V · I2V · Video editing · Video extension · Character consistency for OpenAI Sora. Audio: No native audio for Kling 2.1 Master, versus Native audio (generated clips include audio) for OpenAI Sora.
Kling 2.1 Master
Strengths: published exact per-second API rates.
Trade-offs: the full output envelope is not confirmed and generation modes are not confirmed.
OpenAI Sora
Strengths: a documented output envelope (16s or 20s · 720p (1280x720 / 720x1280); 1024p (1792x1024 / 1024x1792, pro only); 1080p (1920x1080 / 1080x1920, pro only)), documented generation controls (T2V · I2V · Video editing · Video extension · Character consistency), documented audio support (Native audio (generated clips include audio)), and published exact per-second API rates.
Choose Kling 2.1 Master when transparent exact API pricing matter most. Choose OpenAI Sora when transparent exact API pricing, documented generation controls, documented audio output, and its documented duration and resolution envelope matter most.
For output quality, use the paired vote split below; it is specific to the shared Prompts shown here. This summary compares confirmed documentation and pricing only; it does not infer visual quality or rank models.
Overall · 75 shared Prompts
no ties
- Kling 2.1 Master
- 57%
- preferred on 51/75
- OpenAI Sora
- 43%
- preferred on 24/75
Average share of weighted human votes across every shared Prompt, published by Rapidata. This is the dataset’s vote split, not a rating by this site.
Prompt 1 of 75
Human preference on this pairing
Share of weighted human votes for these two clips, collected by Rapidata. It compares this exact pair of clips — it is not an absolute score and not our rating.
Prompt
A 'day in the life' of a cutting-edge urban dance crew rehearsing for a global competition. Showcase their intense training, creative choreography sessions, high-tech stage setups, team dynamics, and the adrenaline-filled moments of their electrifying performance under the city lights.
All 75 Prompts in this matchup
List-price signal
Checked 2026-09-19
Exact and estimate rows are USD per output second. Rows marked Exact are published provider rates; rows marked Estimate are official examples calculated from token consumption, not fixed per-second plan prices. Plan, credit and token paths are grouped separately. A dash means no comparable checked price.
| Basis | Kling 2.1 Master | OpenAI Sora |
|---|---|---|
| USD / output second | ||
| sora-2 · 720pexact | No comparable checked price | $0.10 |
| 1080Pexact | $0.28 | No comparable checked price |
| sora-2-pro · 720pexact | No comparable checked price | $0.30 |
| sora-2-pro · 1024pexact | No comparable checked price | $0.50 |
| sora-2-pro · 1080pexact | No comparable checked price | $0.70 |
| OpenAI Sora: Final published prices, verified 2026-09-19; batch at half rate. The Videos API shut down September 24, 2026 and sora.com closed April 26, 2026 (see sora-sunset, checked 2026-09-28) | ||
This is a price signal, not a quality ranking. Resolution, capabilities, input materials, failed generations, taxes, and regional account terms are not normalized.
- Kling AI API pricing — video · checked 2026-09-11
- OpenAI API pricing · checked 2026-09-11
API comparison
1/7 and 7/7 fields confirmed from official sources
Version-level API facts, taken from the provider documentation cited below. Unconfirmed means we have not verified it from an official source — it does not mean the feature is unsupported.
| Field | Kling 2.1 Master | OpenAI Sora |
|---|---|---|
| Official model ID | Unconfirmed | sora-2 · sora-2-pro |
| Duration | Unconfirmed | 16s or 20s |
| Resolution | Unconfirmed | 720p (1280x720 / 720x1280); 1024p (1792x1024 / 1024x1792, pro only); 1080p (1920x1080 / 1080x1920, pro only) |
| Modes | Unconfirmed | T2V · I2V · Video editing · Video extension · Character consistency |
| Aspect ratios | Unconfirmed | 16:9 · 9:16 |
| Native audio | No native audio | Native audio (generated clips include audio) |
| Weights license | Unconfirmed | Closed (proprietary) |
Sources · checked 2026-09-19
- OpenAI API pricing · checked 2026-09-11
- OpenAI Videos API docs · checked 2026-09-19
- Kling AI API pricing — video · checked 2026-09-11
Where these clips come from
Both clips and the preference split are published by Rapidata under APACHE-2.0, retrieved 2026-09-11. Media is served directly from their Hugging Face repositories; this site re-hosts nothing and adds no rating of its own.
- Rapidata/text-2-video-human-preferences
- Rapidata/text-2-video-human-preferences-veo3.1
- Rapidata/text-2-video-human-preferences-veo3
- Rapidata/text-2-video-human-preferences-veo2
- Rapidata/text-2-video-human-preferences-seedance-1-pro
- Rapidata/text-2-video-human-preferences-kling-v2.1-master
- Rapidata/text-2-video-human-preferences-wan2.1
- Rapidata/text-2-video-human-preferences-pika2.2
- Rapidata/text-2-video-human-preferences-moonvalley-marey
- Rapidata/text-2-video-human-preferences-genmo-mochi-1
Where to run these models
This site does not generate video and does not sell generation credits, so it has no reason to prefer either model. To run them, use the provider’s own API or app.
Frequently asked questions
Did these two models run the same Prompts?
Yes. Kling 2.1 Master and OpenAI Sora were both run on the same 75 Prompts, with identical Prompt text sent to each model. Each slide on this page shows the two clips generated for one Prompt.
Which model did people prefer overall?
Across 75 Prompts, Kling 2.1 Master averaged 57% of the weighted human preference for each pair, and OpenAI Sora averaged 43%. These are vote shares published by Rapidata; they are not a rating by this site.
How many Prompts was each model preferred on?
Kling 2.1 Master was preferred on 51 of 75 Prompts and OpenAI Sora on 24, with no ties.
Can I generate these videos on this site?
No. This site does not generate video and does not sell generation credits; it compares models and links out to each provider. Running these models means using the provider's own API or app.