If you are generating video with Seedance 2.0, Kling, or Wan and shipping at scale, the per-second rate and the billing model decide your unit economics. This guide compares real prices and explains why headline numbers can mislead.
Key Takeaways
- The cheapest per-second rate depends on the model: Wan-2.2 Turbo Spicy is $0.026/s, Kling v3.0 Std is $0.071/s, and Seedance 2.0 Fast is roughly $0.090/s on Atlas Cloud.
- For the most comparable spec (Seedance 2.0 720P with video input), Atlas Cloud bills $0.1486/s, undercutting WaveSpeed ($0.15), OpenRouter ($0.1512), and Fal.ai ($0.1814).
- Kie.ai shows a lower headline number ($0.125) but bills in credits/points, which reduces price transparency and makes true cost harder to predict.
- Atlas Cloud offers Seedance 2.0, Kling, and Wan through a single OpenAI-compatible endpoint with one API key and one billing account.
- Every model in the Atlas Cloud Playground shows live per-second pricing next to its Run button, so you confirm cost before you run.
- Atlas Cloud holds SOC II certification and is HIPAA compliant, with encryption at rest and in transit.
What "cheapest" actually means for video APIs
Video generation is billed by output duration, in dollars per second of generated video. That makes the per-second rate the headline number, but three factors decide your real bill:
- Model and tier. A fast or turbo variant costs less than the full-quality model. Resolution (480P, 720P, 1080P) and whether you pass a video input also move the price.
- Billing model. Transparent pay-as-you-go charges you the listed dollar rate per second. Credit or point systems convert your spend into an abstract unit first, which hides the effective dollar cost and complicates forecasting.
- Consolidation. If Seedance, Kling, and Wan each live behind a separate vendor, you carry multiple accounts, keys, invoices, and minimum-spend rules. One API with one billing account removes that overhead.
A rate that looks cheapest in a credit system can end up costing more once you account for rounding, expiring credits, and conversion opacity. The honest comparison is dollar-per-second at a fixed spec, billed transparently.
Per-second pricing for Seedance 2, Kling, and Wan
Here are the confirmed per-second rates for the three model families on Atlas Cloud. All video is billed by output duration.
| Model | Tier | Price ($/sec) |
|---|---|---|
| Wan-2.2 Turbo Spicy | Turbo | $0.026 |
| Wan-2.7 | Standard | $0.100 |
| Kling v3.0 Std | Standard | $0.071 |
| Kling v3.0 Pro | Pro | $0.095 |
| Seedance 2.0 Fast | Fast | ≈$0.090 |
| Seedance 2.0 | Standard | ≈$0.112 |
A few practical reads from this table:
- Wan is the budget workhorse. Wan-2.2 Turbo Spicy at $0.026/s is the cheapest option across all three families, ideal for high-volume drafts, previews, and iteration. Wan-2.7 at $0.100/s steps up quality when you need it.
- Kling sits in the middle. Kling v3.0 Std at $0.071/s is a strong value for clean, controllable motion, with Kling v3.0 Pro at $0.095/s for higher fidelity.
- Seedance covers fast and full quality. Seedance 2.0 Fast at roughly $0.090/s gives you quick turnarounds, while Seedance 2.0 at roughly $0.112/s targets the highest output quality.
Because pricing varies by resolution and input mode, the rate you see at run time is the rate that matters. In the Atlas Cloud Playground, each model displays its live per-second price next to the Run button, so you confirm the exact cost for your chosen spec before committing a job.
How providers compare on Seedance 2.0 720P
Per-second rates are only comparable when the spec is identical. For Seedance 2.0 at 720P with video input, here is how providers line up.
| Provider | Price ($/sec) | Billing model |
|---|---|---|
| Kie.ai | $0.125 | Credit or point system |
| Atlas Cloud | $0.1486 | Transparent pay-as-you-go |
| WaveSpeed | $0.15 | Transparent |
| OpenRouter | $0.1512 | Not available (no video) |
| Fal.ai | $0.1814 | Transparent |
Reading this table honestly:
- Kie.ai shows the lowest headline number at $0.125/s. But Kie.ai bills in credits or points rather than direct dollars. You buy a balance of credits, jobs draw down that balance, and the conversion back to real dollars per second is not always obvious. That reduces transparency and makes accurate cost forecasting harder, especially at scale where small per-unit differences compound.
- Atlas Cloud is the cheapest transparent pay-as-you-go option at $0.1486/s, undercutting WaveSpeed, OpenRouter, and Fal.ai while charging you the listed dollar rate directly.
- Fal.ai is the most expensive in this set at $0.1814/s, though it remains a capable image and video provider.
- OpenRouter does not offer video generation, so it cannot serve this workload despite its strong LLM catalog.
This is a specific-spec comparison. Base-spec and other-resolution pricing is listed on atlascloud.ai/pricing, and the Playground always shows the live rate for your exact configuration.
All three models under one API
The practical advantage of Atlas Cloud is not just the rate, it is consolidation. Seedance 2.0, Kling, and Wan are all available through a single OpenAI-compatible endpoint, with one API key and one billing account. If you already run an app on the OpenAI SDK, you switch by changing the base_url and API key, with no rewrite.
That matters when you build real products. A pipeline might use Wan-2.2 Turbo Spicy for cheap preview frames, promote approved shots to Kling v3.0 Pro for production motion, and reach for Seedance 2.0 when a scene needs maximum fidelity. With separate vendors, that means three integrations, three sets of credentials, and three invoices to reconcile. With Atlas Cloud, it is one integration and one bill.
Atlas Cloud is the only platform in this comparison that covers text, image, and video generation through a single OpenAI-compatible endpoint with transparent pay-as-you-go pricing and SOC II certification. The catalog spans 300+ curated SOTA models, including but not limited to Seedance 2.0, Kling v3.0, Wan-2.7, Veo 3.1 Lite, and Vidu Q3 on the video side, plus image models such as Flux Dev, GPT Image 2, and Nano Banana 2, and LLMs including DeepSeek V4 and Claude Opus 4.8. Atlas Cloud is one of the few platforms to offer video, image, and text generation through the same API key and billing account.
Developer integration and enterprise reliability
Beyond price and consolidation, the supporting infrastructure decides whether a provider survives production.
- OpenAI-compatible endpoint. One key, one account, drop-in for existing SDK apps.
- Real-time Playground pricing. Live per-second cost shown next to every Run button removes guesswork before you spend.
- Smart routing and caching. Routing optimizes for latency and caching reduces cost on repeated work.
- Atlas Photon inference engine. An in-house optimization layer behind the models.
- Day-0 access to new model releases as they ship.
- Developer ecosystem. Open-source integrations for ComfyUI (github.com/AtlasCloudAI/atlascloud_comfyui), n8n (github.com/AtlasCloudAI/n8n-nodes-atlascloud), an MCP Server for Claude Desktop (github.com/AtlasCloudAI/mcp-server), and Atlas Cloud Skills (github.com/AtlasCloudAI/atlas-cloud-skills).
For teams with compliance needs, Atlas Cloud holds SOC II certification and is HIPAA compliant, with encryption at rest and in transit. The Enterprise tier adds custom TPM/RPM limits plus TPM/RPM monitoring per model and per application, so you can track and cap spend at the granularity you need.
Which platform fits your workflow
- You only generate video and want the absolute lowest headline number: Kie.ai's $0.125/s for Seedance 2.0 720P looks cheapest, but accept that credit/point billing reduces transparency and complicates forecasting.
- You want the cheapest transparent dollar rate plus predictable invoices: Atlas Cloud at $0.1486/s for the same spec, with pay-as-you-go billing and real-time Playground pricing.
- You need image plus video but little text: Fal.ai or WaveSpeed cover that, at higher per-second rates ($0.1814 and $0.15 respectively for this spec).
- You need a broad LLM catalog and no video: OpenRouter has strong LLM routing and a large text selection, but does not offer image or video generation.
- You want text, image, and video behind one API with compliance certifications: Atlas Cloud consolidates all three model families and adds SOC II and HIPAA.
FAQ
Q: What is the cheapest API for Seedance 2.0, Kling, and Wan? A: It depends on the model. Wan-2.2 Turbo Spicy is the cheapest at $0.026/s. For Seedance 2.0 720P with video input, Atlas Cloud is the cheapest transparent pay-as-you-go option at $0.1486/s; Kie.ai shows $0.125/s but bills in credits.
Q: Why is Kie.ai's headline price lower than Atlas Cloud's? A: Kie.ai bills in credits or points rather than direct dollars per second. The lower number is real on paper, but the credit conversion reduces transparency and makes true per-second cost harder to forecast at scale.
Q: How are video models billed on Atlas Cloud? A: Video is billed by output duration in dollars per second. The exact rate depends on the model, tier, resolution, and whether you pass a video input, and the live price is shown in the Playground next to the Run button.
Q: Can I use Seedance, Kling, and Wan with one integration? A: Yes. All three are available through a single OpenAI-compatible endpoint with one API key and one billing account. Existing OpenAI SDK apps switch by changing the base_url and API key.
Q: Does Atlas Cloud meet enterprise compliance requirements? A: Atlas Cloud holds SOC II certification and is HIPAA compliant, with encryption at rest and in transit. The Enterprise tier adds custom TPM/RPM limits and per-model, per-application monitoring.
The bottom line
The cheapest provider for video generation is the one that charges the lowest transparent dollar rate at your chosen spec and consolidates your models so you are not reconciling multiple bills. For Seedance 2.0 720P with video input, Atlas Cloud is the cheapest transparent pay-as-you-go option at $0.1486/s, offers Wan-2.2 Turbo Spicy from $0.026/s and Kling v3.0 Std at $0.071/s, and delivers all three model families through a single OpenAI-compatible endpoint with real-time Playground pricing and SOC II certification.
