Best AI Video Generation APIs in 2026: 8 Providers Compared

Why the choice matters more this year

On September 24, 2026, OpenAI shut down the Sora 2 API with no replacement (our write-up). Teams that had integrated Sora directly had to rebuild. Meanwhile new models keep arriving every few weeks: Seedance 2.5 and MiniMax H3 in July, Gemini Omni Flash in general availability in August, Kling 4.0 Flash in early access in September. Being able to change models cheaply has become a feature in itself.

At a glance

First-party APIs

Google: Veo 3.1 and Gemini Omni

Google offers the Veo 3.1 family (Lite, Fast and Standard) and, since August 27, Gemini Omni Flash in general availability on the Gemini API. Veo 3.1 Lite costs $0.05 per second at 720p and $0.08 at 1080p; Gemini Omni is billed by tokens, about $0.10 per second at 720p. There is no free API tier. You get every parameter Google ships, but you also manage a Google Cloud or AI Studio project and Google-only billing. See Gemini Omni Flash explained.

BytePlus: Seedance

ByteDance's international cloud sells Seedance 2.0 (with Fast and Mini variants) and Seedance 2.5, whose public API opened on August 7. Billing is in tokens, roughly $0.07 to $0.78 per second for Seedance 2.0 depending on resolution. It is the only route to every Seedance option, including 4K and up to 50 references on 2.5.

Runway

Runway's developer API sells credits at $0.01 each, with a $10 minimum top-up: Gen-4.5 costs 12 credits per second and Gen-4 Turbo 5. API credits are separate from app subscriptions, which surprises teams who assumed their Pro plan covered API calls. Runway mostly serves its own models.

Aggregators

fal

fal is usually among the first to host a new model and runs a fast serverless platform. It bills per second with surcharges for audio or Pro tiers, for example Kling 3 Standard at $0.084 per second without audio and $0.126 with. Excellent for experimentation and spiky workloads; costs grow linearly with volume and clip length. Our fal.ai comparison goes deeper.

Replicate

Replicate shines for open-source models and custom deployments you push yourself. Hosted video models are billed per second (Kling 3.0 Standard at about $0.071 per second, Wan 2.5 at about $0.071). See Replicate vs VideoGenAPI.

OpenRouter

Best known for LLM routing, OpenRouter now lists video models such as Seedance 2.0 and 2.5 and MiniMax H3 at provider rates, for example $0.13 per second for H3. Convenient if your LLM traffic already goes through it.

PiAPI

PiAPI offers APIs for models whose labs mainly sell consumer apps, such as Kling. Useful for access, but check the terms and stability guarantees for production use.

VideoGenAPI

Our own service, so judge accordingly. VideoGenAPI exposes 16 models (Kling 3, Seedance 2.0 and 2.5, MiniMax H3, Gemini Omni, Veo 2, Veo 3 Fast, Veo 3.1 Fast, LTX-2, Wan 2.5, Grok Imagine 1.5 and more) behind one endpoint. Most models are included in a flat monthly plan and counted per video rather than per second; Veo 3 Fast and Veo 3.1 Fast are billed per video on top. It also runs an MCP server so Claude, ChatGPT and Cursor can generate video directly. The trade-offs: plan limits and rate limits apply, the newest models arrive after the first-party launch, and very low volumes are cheaper per second.

How to choose

1. One model, every option, from day one → go first-party (Google, BytePlus, Runway).
2. Testing many models, irregular volume → a per-second aggregator such as fal or Replicate.
3. Steady volume, several models, predictable budget → a flat plan billed per video.
4. AI agents generating video → an API with an MCP server.

Whichever you pick, keep the model name in configuration rather than code. The pricing comparison has the detailed numbers.

Frequently asked questions

Sources