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doubao · Balanced

ByteDance Seed 2.0 Code

Added Aug 11, 2026

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Use in the app

ByteDance Seed 2.0 Code is a multimodal model optimized for agentic coding, frontend development, multilingual programming, long-running tool workflows, and coding agents. It supports image and video input, a 262k context window, and up to 131k output tokens.

  • Reasoning
  • Tools
  • Vision
  • Structured output
  • Video input
Input
Text, Images, Video
Output
Text
Reasoning effort
none · low · medium · high
Discovery tier
Balanced

Pricing

USD per 1M tokens
Input
$0.50
Output
$3.00

Reference prices as published by the model provider. API example

Specifications

Context window
262.1K
Max output
131.1K
Average output (7 days)
113 tokens
Longer than 10% of 468 models

Side by side

ByteDance Seed 2.0 Code compared

Specifications, prices, speed and benchmark scores next to each other. Benchmarks below show every compared model too.

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ByteDance Seed 2.0 CodedoubaoThis modelGPT-3.5 TurboOpenAIRemove
ProviderdoubaoOpenAI
Discovery tierBalancedBalanced
AddedAug 11, 2026Jan 1, 2024
Limits
Context window262.14KBest16.39K
Max output131.07KBest4.1K
Average output113 tokens—
Pricing, USD per 1M tokens
Input$0.50$0.50
Output$3.00$1.50Best
Benchmark indexes
Intelligence Index—5.5
Coding Index—10.7
Capabilities
ReasoningYesNo
ToolsYesNo
VisionYesNo
Structured outputYesNo
Video inputYesNo
Reasoning effortnone, low, medium, high—

Public evaluations

Benchmarks

Independent evaluation results, with how each score ranks among the models in the Noumen catalog.

  • ByteDance Seed 2.0 Code
  • GPT-3.5 Turbo

Intelligence Index

  • ByteDance Seed 2.0 Code—
  • GPT-3.5 Turbo5.5
3.8Catalog models by score55.1

Indexes

  • Coding Index

    Composite of the coding evaluations

    • ByteDance Seed 2.0 Code: —
    • GPT-3.5 Turbo: 10.7

Reasoning and knowledge

  • GPQA Diamond

    Graduate-level science questions

    • ByteDance Seed 2.0 Code: —
    • GPT-3.5 Turbo: 29.7%
  • MMLU-Pro

    Multi-subject knowledge and reasoning

    • ByteDance Seed 2.0 Code: —
    • GPT-3.5 Turbo: 46.2%

Math

  • MATH-500

    Competition math problems

    • ByteDance Seed 2.0 Code: —
    • GPT-3.5 Turbo: 44.1%

Scores from Artificial Analysis, updated Oct 26, 2026.

Developers

Use it through the API

Noumen’s API is OpenAI-compatible: any Chat Completions client works with a base URL and a key.

Read the quickstart
curl https://www.noumen.xyz/api/v1/chat/completions \
  -H "Authorization: Bearer $NOUMEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "bytedance-seed/seed-2.0-code",
    "reasoning_effort": "medium",
    "messages": [{ "role": "user", "content": "Explain this stack trace." }]
  }'
import os
from openai import OpenAI

client = OpenAI(base_url="https://www.noumen.xyz/api/v1", api_key=os.environ["NOUMEN_API_KEY"])
reply = client.chat.completions.create(
    model="bytedance-seed/seed-2.0-code",
    messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)

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