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  1. Home
  2. Models
  3. Seed 2.1 Turbo
Updated Aug 18, 2026
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Openings

How Seed 2.1 Turbo starts an answer

The first lines of 5 of its 24 written answers. Formatting stripped, words untouched.

Debug This Architecture

Here's the architecture for a real-time collaborative document editor (like Google Docs): **System Overview:** - Frontend: React SPA with…

2,839 words
Below is a structured analysis of all failure modes, race conditions, and scaling bottlenecks in the proposed architecture, paired with specific, actionable solutions and their trade-offs. Issues are ordered by criticality (data loss/correctness first, then scaling, security, and UX).
Read the full answer

Ethical Dilemma with Stakeholders

You're the CEO of a pharmaceutical company. Your best-selling drug ($2B annual revenue, used by 4 million patients for chronic pain) has…

2,370 words
48-Hour Action Plan: Pharmaceutical Drug Safety Crisis Timeline Anchor: T=0 = 9:00 AM Monday, immediately after the internal research team (IRT) confirms a statistically significant 1-in-8,000 5-year liver failure risk for the company’s top-selling chronic pain drug. T+48 = 9:00 AM Wednesday, scheduled board meeting.
Read the full answer

Movie Analysis

Analyze the themes, symbolism, and cinematography in the movie "Blade Runner 2049" and how they connect to the original film. Provide a…

2,351 words
Blade Runner 2049: Themes, Symbolism, Cinematography, and the Legacy of the Original Ridley Scott’s 1982 Blade Runner redefined science fiction as a medium for existential inquiry, framing its cyberpunk noir world around a single deceptively simple question: what does it mean to be human?
Read the full answer

Realistic AI Interview

Simulate a fake interview with Steve Jobs in 2025 about the future of AI.

2,088 words
Editor’s Note: This is a speculative, fictional interview, crafted to reflect Steve Jobs’ documented design philosophy, speaking cadence, and core values (user-centricity, the primacy of human creativity, disdain for tech-for-tech’s-sake, and privacy as a fundamental right) applied to the 2025 AI landscape.
Read the full answer

Historical Counterfactual Analysis

If the transistor had been invented in 1920 instead of 1947, trace the likely technological, economic, and geopolitical implications through…

2,068 words
Counterfactual: Transistor Invented in 1920 (vs. 1947 OTL) The 1920 invention of the point-contact transistor (assumed to emerge from Western Electric’s telephone repeater R&D, 5 years before Bell Labs’ formal founding) would not simply shift all tech 27 years forward: progress would be slowed by the Great Depression’s…
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Compare Seed 2.1 Turbo

Seed 2.1 Turbo vs Seed 2.0 Code54 shared prompts · Landed Aug 2026
Seed 2.1 Turbo vs Ox Alpha54 shared prompts · Landed Aug 2026
Seed 2.1 Turbo vs MiniMax M353 shared prompts · Landed Jun 2026
Seed 2.1 Turbo vs Muse Spark 1.354 shared prompts · Landed Sep 2026
Seed 2.1 Turbo vs Gemini 3.8 Flash54 shared prompts · Landed Sep 2026
Seed 2.1 Turbo vs Muse Spark 1.3 Contributor54 shared prompts · Landed Sep 2026
Seed 2.1 Turbo vs Grok 4.654 shared prompts · Landed Aug 2026
Seed 2.1 Turbo vs Dots3-Note Preview53 shared prompts · Landed Aug 2026
Seed 2.1 Turbo vs Gemini 3.7 Flash54 shared prompts · Landed Aug 2026
Seed 2.1 Turbo vs DeepSeek V4 Flash 073142 shared prompts · Landed Aug 2026
Seed 2.1 Turbo vs Gemini 3.6 Flash54 shared prompts · Landed Jul 2026
Seed 2.1 Turbo vs Muse Spark 1.154 shared prompts · Landed Jul 2026

Prompts Seed 2.1 Turbo answered

  • The Sentience Testreasoning
  • Linear App Cloneweb design
  • Simple Falling Object Gameweb design
  • Character Voice Testconversation
  • Surprise Animal SVGimage generation
  • AI Ethics Dilemmareasoning

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Seed 2.1 Turbo is good. These would like a word anyway.

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Gemini 3.8 Flash logo
Gemini 3.8 Flashgoogle
Claude Fable 5.1 logo
Claude Fable 5.1anthropic
Mercury 2.5 Preview logo
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Granite 4.2 8B logo
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Hy4 Previewtencent
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Seed 2.1 Turbo

Seed 2.1 Turbo

Seed:
2.0 Lite logo2.0 Lite
2.1 Turbo logo2.1 Turbo
2.0 Code logo2.0 Code

Seed 2.1 Turbo is a multimodal model from ByteDance Seed for coding and long-horizon agent workflows. It is suited for end-to-end software delivery, multi-step task execution, and understanding visual and video content, with capabilities for planning, debugging, and self-correction.

OpenRouter
Provider
ByteDance
Released
2026-08-12
Size
LARGE
Free API (OpenRouter)
No
Per 1M tokens
$0.50 in · $2.5 out
Rival’s tab
$1.90
58/58 receipts survived

Free API availability

No free endpoint for Seed 2.1 Turbo was found in Rival’s OpenRouter listings. Other providers or chat apps may have separate free offers.

Provider data: 16 Sep 2026 · OpenRouter usage limits

View API options↗
Get API accessProvider and language code samples
Provider
fromimport openai  OpenAI

client = OpenAI(
"https://openrouter.ai/api/v1"    base_url=,
"$OPENROUTER_API_KEY"    api_key=,
)

response = client.chat.completions.create(
"bytedance-seed/seed-2-1-turbo"    model=,
"role""user""content""Hello!"    messages=[{: , : }],
)
print(response.choices[0].message.content)

Set OPENROUTER_API_KEY with your OpenRouter API key from openrouter.ai/keys.

Deep analysisPsychometrics, taste index, writing DNA
Writing DNA

Stylometric Fingerprint

Based on 27 text responses
Tick = global average
Vocabulary Diversity50%

Unique words vs. total words. Higher = richer vocabulary.

Sentence Length26.9 words

Average words per sentence.

Hedging0.27

"Might", "perhaps", "arguably" per 100 words.

Bold Formatting1.5

**Bold** markers per 1,000 characters.

List Usage2.4

Bullet and numbered list items per 1,000 characters.

Section Structure1.01

Markdown headings per 1,000 characters.

Emoji Usage0.07

Emoji per 1,000 characters.

Transitions0.04

"However", "moreover", "furthermore" per 100 words.

Opening Habits
Starts with heading (59%)
Consistency
83%
Across 27 responses

Favorites

The Shawshank Redemption

Movie

The Shawshank Redemption

19948.7
Abbey Road

Album

Abbey Road

The Beatles
To Kill a Mockingbird

Book

To Kill a Mockingbird

Harper Lee
Kyoto

City

Kyoto

Japan
Stardew Valley

Game

Stardew Valley

Indie, RPG4.4
Sponsored

Model Responses

53 outputs · $1.90 tracked across 53 receipts

Reviewing agent-written code?See a Brief PR report

Workshop · 127 skills

Build with your coding agent.

Editable skills for interface polish and interaction.

Explore $49Free sample

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Seed 2.1 Turbo vs Ox Alpha

Real outputs compared side by side

RANKINGS

Best AI for Complex Reasoning

Sally's brothers, GPT-3 training FLOPs, a document editor syncing on client c...