Bytedance Seed: Seed 1.6 Vision

ByteDance Seed multimodal model for image understanding, visual reasoning, and tool-assisted tasks

Model lab: Bytedance Seed
Model family: seed

Modalitiestext, image → text

Context window256,000

Maximum output32,000

InputUSD 0.096 / 1M tokens

OutputUSD 0.92 / 1M tokens

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Quickstart

Use your Moduck API Key, set the API base URL to https://api.moduck.ai/v1, and set the model parameter to bytedance-seed/seed-1-6-vision.

import os
import requests

base_url = "https://api.moduck.ai/v1"
api_key = os.environ["MODUCK_API_KEY"]
model_id = "bytedance-seed/seed-1-6-vision"

response = requests.post(
    f"{base_url}/chat/completions",
    headers={
        "Authorization": f"Bearer {api_key}",
        "Content-Type": "application/json",
    },
    json={
        "model": model_id,
        "messages": [{"role": "user", "content": "Hello!"}],
        "stream": False,
    },
    timeout=60,
)
response.raise_for_status()
print(response.json())

Use the familiar OpenAI-style chat request format to make model integration easier.

Seed 1.6 Vision API Pricing

Type	Price information
Input	USD 0.096 / 1M tokens
Output	USD 0.92 / 1M tokens
Cached input	USD 0.0184 / 1M tokens

Performance

Performance trends

Throughput90.5 tok/sCurrent

Time to first token1.3 sCurrent

End-to-end latency7.2 sCurrent

Throughput

Current90.5 tok/s

Window average89.7 tok/s

Time to first token

Current1.3 s

Window average1.4 s

End-to-end latency

Current7.2 s

Window average7.5 s

Tail latency (P99)

Current32.6 s

Window average17.4 s

Prompt cache hit rate

Current19.4%

Window average24.0%

Error rate

Current0.0%

Window average0.1%

Availability

Uptime100%At least one provider responded

Availability100%Requests actually served

Error rate0%Share of failed requests

Served requests, hour by hour

24 hours agoNow

Seed 1.6 Vision Compare models

Model	Input price	Output price	Context window	Capabilities
Seed 1.6 VisionThis page	USD 0.096 / 1M tokens	USD 0.92 / 1M tokens	256,000	Text output · Tool calling
Seed 1.8	USD 0.096 / 1M tokens	USD 0.232 / 1M tokens	256,000	Text output · Reasoning · Tool calling
Seed 1.6 Flash	USD 0.017816 / 1M tokens · Base context tier (boundary 32000 tokens)	USD 0.17812 / 1M tokens · Base context tier (boundary 32000 tokens)	256,000	Text output · Tool calling
Seed 2.1 Pro	USD 0.56576 / 1M tokens	USD 2.8288 / 1M tokens	256,000	Text output · Reasoning · Tool calling
Seed 2.1 Turbo	USD 0.28288 / 1M tokens	USD 1.41568 / 1M tokens	256,000	Text output · Reasoning · Tool calling

Model specifications

Input: text, image
Output: text
Context window: 256,000
Maximum output: 32,000
Release date: 2025-08-15
Attachments: Yes
Reasoning: No
Tool calling: Yes
Structured output: Yes
Temperature setting: Yes
Open weights: No

Frequently asked questions

What is Seed 1.6 Vision for?

ByteDance Seed multimodal model for image understanding, visual reasoning, and tool-assisted tasks

What inputs and outputs does Seed 1.6 Vision support?

Recorded inputs: text, images; outputs: text.

How is Seed 1.6 Vision priced?

The pricing table shows the current recorded Moduck price. For example: Input USD 0.096 / 1M tokens; Output USD 0.92 / 1M tokens. See the pricing table for all units, variants, and conditions.

What specifications are recorded for Seed 1.6 Vision?

Current model records list Context window 256,000 tokens; Maximum output 32,000 tokens.

What model parameter does the Quickstart use?

The example uses bytedance-seed/seed-1-6-vision. This value comes from the page identifier and is not confirmed as a callable Moduck public ID.

Can I call this model through the Moduck API now?

This page has no verified Moduck API call for this model. A Quickstart example or reserved ID does not establish access; check the models available to your account.