LLM Reference

Seed 1.6 on Vercel AI Gateway

Seed · ByteDance

Serverless

Last refreshed 2026-05-22. Next refresh: weekly.

Why use Seed 1.6 on Vercel AI Gateway?

Vercel AI Gateway offers Seed 1.6 with pay-as-you-go pricing at $0.25/1M input tokens. 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.

Input / 1M
$0.25
Output / 1M
$2.00
Cache
read $0.050
Batch
Not sourced

Setup recipe

Python + curl
Install
pip install openai
Auth
export AI_GATEWAY_API_KEY=...
Call
import os
from openai import OpenAI
client = OpenAI(
    api_key=os.environ["AI_GATEWAY_API_KEY"],
Model ID
bytedance/seed-1.6

Request 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/seed-1.6",
    messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)

Gotchas

  • Use provider model ID "bytedance/seed-1.6", not the LLMReference slug "seed-1.6".
  • 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

TypePrice (per 1M)
Input tokens$0.25
Output tokens$2.00

Capabilities

VisionMultimodalReasoningFunction CallingTool UseStructured Outputs

About Seed 1.6

Seed 1.6 is a general-purpose multimodal model from ByteDance Seed supporting text, image, and video inputs. It incorporates multimodal capabilities and deep thinking for complex tasks at 256K context.

FAQ

What does Seed 1.6 cost on Vercel AI Gateway?

On Vercel AI Gateway, Seed 1.6 costs $0.25 per 1M input tokens and $2 per 1M output tokens.

What is the context window for Seed 1.6 on Vercel AI Gateway?

Seed 1.6 supports a 256,000 token context window on Vercel AI Gateway.

What API model ID do I use for Seed 1.6 on Vercel AI Gateway?

Use the model ID bytedance/seed-1.6 when calling Vercel AI Gateway's API.

Who created Seed 1.6?

Seed 1.6 was created by ByteDance as part of the Seed model family.

Is Seed 1.6 open source?

Seed 1.6 is not open source; the seed data lists it as proprietary.

Get Started

Model Specs

Released2026-03-01
Context256K
ArchitectureDecoder Only