How much does the Seedream 4.5 API cost?

On FastMetal, Seedream 4.5 is billed per generated image: $0.0456 per image on a US-dollar account, before tax — not per token. Usage is drawn from a prepaid balance; there is no subscription or monthly fee.

Can I call Seedream 4.5 with the OpenAI SDK?

Yes. Point base_url at https://api.fastmetal.ai/v1 and pass "bytedance-seedream-4.5" as the model; existing OpenAI-style code works unchanged, including streaming, tool calls and structured output.

What do I need to try Seedream 4.5?

Create an account and add credit; the model is then available both in the browser chat and over the API. There is no contract or minimum spend.

Back to Models

ByteDance Seed

bytedance-seedream-4.5

Seedream 4.5

Global: Generate images

Per image: $0.0456

Try in Chat Get API Key

Specifications

Modalities

Input

text

Output

image

Data policy

Prompt retention: Not retained — every host this model runs on is configured not to retain prompts
Training: Not used for training

Whether a provider trains on prompts is a declared value from our terms with them. Retention is determined from the upstream listing for every host this model can reach. Neither is guessed.

Code Examples

curl https://api.fastmetal.ai/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "bytedance-seedream-4.5",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Images generated by Seedream 4.5

Generated on FastMetal from the prompts below — no retouching, no cherry-picking.

霧の湖と山の夜明け — generated by Seedream 4.5 on FastMetal — 夜明けの静かな山上湖。水面に霧が立ちこめ、雪をかぶった峰が鏡のように映り込む写実的な風景写真

和紙テクスチャの浮世絵風の鯉 — generated by Seedream 4.5 on FastMetal — 和紙の質感を活かした浮世絵風の錦鯉。藍と朱の配色、力強い墨線

Frequently asked questions

How much does the Seedream 4.5 API cost?: On FastMetal, Seedream 4.5 is billed per generated image: $0.0456 per image on a US-dollar account, before tax — not per token. Usage is drawn from a prepaid balance; there is no subscription or monthly fee.
Can I call Seedream 4.5 with the OpenAI SDK?: Yes. Point base_url at https://api.fastmetal.ai/v1 and pass "bytedance-seedream-4.5" as the model; existing OpenAI-style code works unchanged, including streaming, tool calls and structured output.
What do I need to try Seedream 4.5?: Create an account and add credit; the model is then available both in the browser chat and over the API. There is no contract or minimum spend.

Try Seedream 4.5 right now

Seedream 4.5 is available on FastMetal through one API key. Start in the browser, or call it from the OpenAI SDK.

Create a free account