questions/How-to

How do I use Bytedance Seedance 2.0 (Text To Video)?

To use Bytedance Seedance 2.0 (Text To Video), install the OpenAI SDK (any language), point base_url at https://api.aigateway.sh/v1 with an sk-aig-... key, and set model="bytedance/seedance-2.0". That's it — no provider account, no separate billing. ByteDance's model is served through AIgateway's OpenAI-compatible endpoint so every existing OpenAI integration (Cursor, LangChain, Vercel AI SDK) works unchanged.

How it works

1. Grab an AIgateway key

Sign in at aigateway.sh with GitHub or Google, open the dashboard, and copy an sk-aig-... key. No credit card required to claim a key — every new account gets $5 signup credit (spendable on a curated edge-tier shortlist including Kimi K2.6) so you can test end-to-end before you top up.

2. Point the OpenAI SDK at AIgateway

Every OpenAI client library ships with a base_url (Python) or baseURL (Node) field. Set it to https://api.aigateway.sh/v1 and drop in your sk-aig-... key. Nothing else in your application code needs to change — the request and response schemas are OpenAI-identical.

3. Set model="bytedance/seedance-2.0"

On your chat.completions.create call (or images, embeddings, audio — whichever endpoint matches the video modality), pass model="bytedance/seedance-2.0". AIgateway handles provider auth, billing, retries, and transformation so ByteDance-specific quirks don't leak into your code.

Code example

Python
# pip install aigateway-py openai
# aigateway-py: sub-accounts, evals, replays, jobs, webhook verify.
# openai SDK: chat/embeddings/images/audio — drop-in compat per our SDK's own guidance.
from openai import OpenAI

client = OpenAI(
    base_url="https://api.aigateway.sh/v1",
    api_key="sk-aig-...",
)

r = client.chat.completions.create(
    model="bytedance/seedance-2.0",
    messages=[{"role": "user", "content": "Explain vector databases in two sentences."}],
)
print(r.choices[0].message.content)
Node / TypeScript
// npm i aigateway-js openai
// aigateway-js: sub-accounts, evals, replays, jobs, webhook verify.
// openai SDK: chat/embeddings/images/audio — drop-in compat.
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.aigateway.sh/v1",
  apiKey: process.env.AIGATEWAY_KEY,
});

const r = await client.chat.completions.create({
  model: "bytedance/seedance-2.0",
  messages: [{ role: "user", content: "Explain vector databases in two sentences." }],
});
console.log(r.choices[0].message.content);

Related

FAQ

Do I need a ByteDance account to use Bytedance Seedance 2.0 (Text To Video)?

No. AIgateway provides a unified sk-aig-... key that routes to ByteDance on your behalf. You only need an AIgateway account.

Does Bytedance Seedance 2.0 (Text To Video) support tool calling?

Bytedance Seedance 2.0 (Text To Video) does not support tool calling natively. Use it for generation; route tool-calling prompts to a model like Claude Sonnet 4.6 or GPT-5.4.

What is the context window of Bytedance Seedance 2.0 (Text To Video)?

Context window details for Bytedance Seedance 2.0 (Text To Video) are on the spec page at /models/bytedance/seedance-2.0.

Is Bytedance Seedance 2.0 (Text To Video) free to try?

Every new AIgateway account gets $5 in signup credit (no card) — spendable on a curated edge-tier shortlist (Kimi K2.6, FLUX-2 Klein, Whisper Turbo, Aura 2, Gemma 4 vision, BGE-M3, Llama Guard 3). Bytedance Seedance 2.0 (Text To Video) is covered if it's on that shortlist; otherwise a $5 top-up unlocks the full catalog at pass-through pricing. Topups never expire.

Can I use Bytedance Seedance 2.0 (Text To Video) with Cursor or LangChain?

Yes — anything that speaks OpenAI's API shape works. Set base_url to https://api.aigateway.sh/v1, paste your AIgateway key, and set the model string. Cursor, Cline, Continue, LangChain, LlamaIndex, Vercel AI SDK all supported.

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