Moduck

Bytedance Seed: Seed 2.0 Code

ByteDance Seed coding model for multimodal software engineering and long-running agents

Model lab
Bytedance Seed
Model family
seed
Modalitiestext, image, video → text
Context window262,144
Maximum output131,072
Input · Base context tier (boundary 32000 tokens)USD 0.379992 / 1M tokens
Output · Base context tier (boundary 32000 tokens)USD 1.899952 / 1M tokens

Quickstart

Use your Moduck API Key, set the API base URL to https://api.moduck.ai/v1, and set the model parameter to moduck/bytedance/seed-2-0-code.

import os
import requests

base_url = "https://api.moduck.ai/v1"
api_key = os.environ["MODUCK_API_KEY"]
model_id = "moduck/bytedance/seed-2-0-code"

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 2.0 Code API Pricing

TypePrice information
Input · Base context tier (boundary 32000 tokens)USD 0.379992 / 1M tokens
Output · Base context tier (boundary 32000 tokens)USD 1.899952 / 1M tokens
Cached input · Base context tier (boundary 32000 tokens)USD 0.076 / 1M tokens

Performance

Measured on the Moduck gateway across live traffic, hour by hour over the last 24 hours. Time to first token is how long before anything appears; throughput is how fast the answer is written after that; end-to-end latency is the whole round trip. Figures are medians unless the card says otherwise.

Performance trends

Throughput88.9 tok/sCurrent
Time to first token1.3 sCurrent
End-to-end latency7.9 sCurrent
Throughput
Current88.9 tok/s
Window average89.1 tok/s
Time to first token
Current1.3 s
Window average1.4 s
End-to-end latency
Current7.9 s
Window average7.5 s
Tail latency (P99)
Current14.9 s
Window average16.4 s
Prompt cache hit rate
Current19.3%
Window average22.5%
Error rate
Current0.0%
Window average0.2%

Availability

Uptime is the share of time at least one provider serving this model responded. Availability is stricter: the share of requests actually served. A provider that answers but fails part of the traffic lowers availability without lowering uptime. Both cover the last three days.

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 2.0 Code Compare models

ModelInput priceOutput priceContext windowCapabilities
Seed 2.0 CodeThis pageUSD 0.379992 / 1M tokens · Base context tier (boundary 32000 tokens)USD 1.899952 / 1M tokens · Base context tier (boundary 32000 tokens)262,144Text output · Reasoning · Tool calling
Seed 2.1 ProUSD 0.56576 / 1M tokensUSD 2.8288 / 1M tokens256,000Text output · Reasoning · Tool calling
Seed 2.1 TurboUSD 0.28288 / 1M tokensUSD 1.41568 / 1M tokens256,000Text output · Reasoning · Tool calling
Seed CharacterUSD 0.095 / 1M tokens · Base context tier (boundary 32000 tokens)USD 0.237496 / 1M tokens · Base context tier (boundary 32000 tokens)256,000Text output · Reasoning · Tool calling
Seed EvolvingUSD 0.7072 / 1M tokensUSD 3.536 / 1M tokens256,000Text output · Reasoning · Tool calling

Model specifications

Input
text, image, video
Output
text
Context window
262,144
Maximum output
131,072
Release date
2026-02-14
Attachments
Yes
Reasoning
Yes
Tool calling
Yes
Structured output
Yes
Temperature setting
Yes
Open weights
No

Frequently asked questions

What is Seed 2.0 Code for?

ByteDance Seed coding model for multimodal software engineering and long-running agents

What inputs and outputs does Seed 2.0 Code support?

Recorded inputs: text, images, video; outputs: text.

How is Seed 2.0 Code priced?

The pricing table shows the current recorded Moduck price. For example: Input · Base context tier (boundary 32000 tokens) USD 0.379992 / 1M tokens; Output · Base context tier (boundary 32000 tokens) USD 1.899952 / 1M tokens. See the pricing table for all units, variants, and conditions.

What specifications are recorded for Seed 2.0 Code?

Current model records list Context window 262,144 tokens; Maximum output 131,072 tokens.

What model parameter does the Quickstart use?

The example uses moduck/bytedance/seed-2-0-code. This is a cataloged Moduck public or reserved ID; check your account’s available models before calling it.

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.