Last refreshed 2026-05-22. Next refresh: weekly.
Why use Seedream 4.5 on Vercel AI Gateway?
Vercel AI Gateway offers Seedream 4.5 with competitive pricing. Vercel AI Gateway is a unified AI proxy providing a single OpenAI-compatible API endpoint to 275+ models from 25+ providers including Anthropic, OpenAI, Google, Meta, Mistral, DeepSeek, xAI, Alibaba, Amazon, ByteDance, Cohere, MiniMax, MoonshotAI, KwaiPilot, Black Forest Labs, Recraft, Voyage AI, NVIDIA, and more.
Setup recipe
Python + curlpip install openaiexport AI_GATEWAY_API_KEY=...import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["AI_GATEWAY_API_KEY"],bytedance/seedream-4.5Request example
import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["AI_GATEWAY_API_KEY"],
base_url="https://ai-gateway.vercel.sh/v1"
)
response = client.chat.completions.create(
model="bytedance/seedream-4.5",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Gotchas
- Use provider model ID "bytedance/seedream-4.5", not the LLMReference slug "seedream-v4.5".
- creator/model-name e.g. kwaipilot/kat-coder-pro-v2
- The examples expect AI_GATEWAY_API_KEY; rename it only if your application config maps the new variable.
Pricing
| Type | Rate |
|---|---|
| Image input | $0.04 |
Capabilities
About Seedream 4.5
Seedream 4.5 by ByteDance Seed team. High-quality text-to-image generation model released December 2025. Available via Fal API (fal-ai/bytedance/seedream/v4.5/text-to-image).
FAQ
What API model ID do I use for Seedream 4.5 on Vercel AI Gateway?
Use the model ID bytedance/seedream-4.5 when calling Vercel AI Gateway's API.
Who created Seedream 4.5?
Seedream 4.5 was created by ByteDance as part of the Seedream model family.
Is Seedream 4.5 open source?
Seedream 4.5 is not open source; the seed data lists it as proprietary.