ByteDance Seed: Seed 2.1 Turbo
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...
Anyone in the Project can @-mention ByteDance Seed: Seed 2.1 Turbo with the team's shared context - pooled credits, one chat, one memory.
Starter is free forever - 1 Project, 100 credits/month, 1 MCP. No card.
Verdict
Best for
- Video content analysis on tight budgets
- Long-context multimodal document processing
- Cost-sensitive image understanding workflows
- Prototyping video AI features before scaling
- Teams already using ByteDance infrastructure
Strengths
The 262K context window handles hour-long videos or hundreds of images in a single request, matching Gemini's range at a fraction of the cost. Input pricing at $0.50/Mtok makes it the cheapest multimodal option for high-volume video ingestion. ByteDance's video expertise from TikTok suggests strong temporal understanding, though we lack third-party validation. The turbo designation implies faster inference than standard Seed models.
Trade-offs
Zero public benchmarks means you're flying blind on accuracy versus Claude or GPT-4o. ByteDance models historically lag OpenAI and Anthropic on complex reasoning tasks, and Seed 2.1 likely continues that pattern. Video understanding quality is unproven outside ByteDance's own use cases. The proprietary license locks you into their API with no self-hosting escape hatch. Early-stage model risk is real until community testing validates performance claims.
Specifications
- Provider
- bytedance-seed
- Category
- llm
- Context length
- 262,144 tokens
- Max output
- 235,929 tokens
- Modalities
- text, image, video
- License
- proprietary
- Released
- 2026-08-12
Pricing
- Input
- $0.50/Mtok
- Output
- $2.50/Mtok
- Model ID
bytedance-seed/seed-2-1-turbo
Per-token prices show what the model costs upstream. On Switchy your team draws from one shared org credit pool - one plan, one balance for everyone.
Team cost calculator
5 seats · 80 msgs/day
Switchy meters this against your org's shared credit pool - one plan, one balance for everyone.
Providers
| Provider | Context | Input | Output | P50 latency | Throughput | 30d uptime |
|---|---|---|---|---|---|---|
| bytedance-seed | 262k | $0.50/Mtok | $2.50/Mtok | — | — | — |
Performance
Benchmarks
Works well with
Top MCPs
Compatibility data comes from first-party telemetry; once we have enough co-usage signal, top MCPs for this model will appear here.
How Switchy teams use it
Starter prompts
Video Scene Breakdown
Watch this video and create a timestamped breakdown of each distinct scene. For each scene, describe the main action, any visible text or UI elements, and the emotional tone. Format as a table with columns: Timestamp | Scene Description | Key Elements.
Multi-Image Comparison
I'm uploading 40 product screenshots. Compare them and identify: 1) UI inconsistencies in button placement or styling, 2) any text that differs across versions, 3) which screenshots appear to be from a different build. Summarize findings by category.
Document + Image Context
I've provided a 50-page technical manual and 12 diagrams. Answer these questions using both sources: [your questions here]. Cite specific page numbers and diagram labels in your answers.
Video Content Moderation
Review this video for content policy violations. Flag any instances of: graphic violence, hate speech, misleading claims, or copyright-infringing material. For each flag, provide the timestamp and a 2-sentence explanation of the issue.
Multimodal Data Extraction
This video shows a software demo. Extract a step-by-step tutorial in markdown format. For each step, include: the action taken, any keyboard shortcuts used, and a screenshot timestamp. Number each step and use clear headings.
Example outputs
Illustrative - representative of the model's voice and quality, not literal recordings.
Analyze this quarterly sales chart and write a 3-paragraph executive summary highlighting the key trend, one risk, and one opportunity. Keep it under 200 words.
This model would produce a structured executive summary that opens with the dominant trend visible in the chart data—perhaps declining Q3 performance or accelerating growth in a specific region. The second paragraph identifies a concrete risk, such as seasonal dependency or margin compression in a key segment, referencing specific data points from the chart. The final paragraph pivots to opportunity, suggesting actionable next steps like market expansion or product bundling, grounded in the numbers. The tone is boardroom-ready: no hedging, no jargon, just clear strategic framing. The output respects the 200-word ceiling and delivers exactly three paragraphs as requested.
Seed 2.1 Turbo's 262k-token context window makes it well-suited for ingesting large documents or image-heavy reports in a single pass. This example shows its ability to synthesize visual and textual data into concise business prose. The trade-off: without public benchmarks, we can't verify how it ranks against GPT-4o or Claude on structured reasoning tasks.
Generate a 30-second product demo script for a fitness app. The app tracks workouts, suggests meal plans, and syncs with wearables. Make it conversational, not salesy.
This model would deliver a script that opens with a relatable pain point—'Tired of juggling three apps just to stay healthy?'—then walks through the app's core loop in natural, second-person language. It describes tapping through a workout log, receiving a personalized meal suggestion based on today's calorie burn, and glancing at wearable sync confirmation. The script avoids feature-listing and instead paints a day-in-the-life scenario, closing with a low-pressure call to action like 'Download and try your first week free.' The pacing fits a 30-second read, and the tone feels like a friend explaining the app over coffee.
Multimodal input support means you could feed Seed 2.1 Turbo screenshots of the app UI alongside the prompt, letting it reference specific design elements in the script. The conversational constraint tests its ability to modulate tone—a strength for content generation tasks. The $2.50/Mtok output price is steep for high-volume creative work, though.
I'm debugging a Python script that scrapes a news site. It returns empty lists even though the HTML structure looks correct. Here's the code and the page source. What's wrong?
This model would walk through the code line-by-line, identifying the likely culprit—perhaps the scraper is targeting a CSS selector that only appears after JavaScript renders the page, or the site is returning different HTML to non-browser user agents. It explains why `soup.find_all('.article-title')` returns nothing (the class name might be dynamically generated), then suggests two fixes: switching to Selenium for JS-rendered content, or inspecting the actual HTTP response with `requests` to confirm what HTML the script is receiving. The explanation includes a corrected code snippet and a one-liner test to verify the fix.
The 262k-token context window lets you paste both the full script and the raw page source without truncation, which is critical for debugging tasks where the issue often hides in overlooked details. However, without coding-specific benchmark scores, it's unclear how Seed 2.1 Turbo compares to specialized models like Claude 3.5 Sonnet or GPT-4 on complex refactoring.
Use-case deep-dives
When your creative team needs one model for text, image, and video QA
A 4-person content studio ships 30+ social assets weekly—carousels, reels, caption variants—and needs fast feedback loops before client review. Seed 2.1 Turbo handles all three modalities in one API call at $0.50/$2.50 per Mtok, which beats stitching together separate vision and language models. The 262k context window means you can batch an entire campaign brief plus 8-10 video scripts in a single prompt. If you're only doing text work, you're overpaying—switch to a text-only model at half the input cost. But if your workflow already juggles Figma exports and MP4 drafts, this collapses three tools into one and cuts your integration overhead by 60%.
Why 262k context makes this the call for hour-long webinar review
A 12-person SaaS company records customer training webinars and needs automated flagging for compliance risks before publishing to their portal. Seed 2.1 Turbo's 262k window fits a 50-minute video transcript plus the slide deck images in one pass, so you're not chunking and losing cross-reference context. At $2.50/Mtok output, a 4k-token summary costs under a cent—cheap enough to run on every recording. The lack of public benchmarks means you'll want to pilot with 10 sessions before going all-in, but the multimodal + context combo is rare at this price tier. If your videos are under 15 minutes, a smaller-window model saves you 40% on input tokens.
When your docs team needs to parse text and architecture diagrams together
A 7-person DevTools startup maintains 200+ pages of API docs with flowcharts, sequence diagrams, and code snippets, and they want an AI that can answer support questions by reading both the prose and the visuals. Seed 2.1 Turbo ingests a full doc section—text plus 6-8 PNG diagrams—in one prompt, so answers reference the actual diagram labels instead of hallucinating. The $0.50 input rate keeps cost under $2/day for 50 support queries. Without published benchmarks, you're flying blind on accuracy versus GPT-4V or Claude 3.5 Sonnet, so A/B test 20 real tickets first. If your docs are text-only, you're better off with a cheaper text model and saving the multimodal tax for when you actually need it.
Frequently asked
Is Seed 2.1 Turbo good for multimodal tasks?
Yes, Seed 2.1 Turbo handles text, image, and video inputs natively, making it suitable for tasks like video summarization, image captioning, or mixed-media analysis. The 262K token context window means you can process long videos or multiple images in a single request. Without public benchmarks, you're relying on ByteDance's internal testing, so pilot carefully before production deployment.
Is Seed 2.1 Turbo cheaper than GPT-4o or Claude for video analysis?
At $0.50 input and $2.50 output per Mtok, Seed 2.1 Turbo undercuts GPT-4o ($2.50/$10.00) and Claude Sonnet 4 ($3.00/$15.00) by 5-6x on both sides. For video-heavy workloads where you're tokenizing frames, this pricing advantage compounds fast. The trade-off is zero public benchmark data to validate quality against those alternatives.
Can Seed 2.1 Turbo handle 4K video in one request?
The 262K token context window is large enough for several minutes of video at typical frame sampling rates, but exact capacity depends on ByteDance's tokenization strategy for video frames. Most providers encode video frames at 500-1500 tokens per frame. Test your specific use case—4K resolution increases token consumption significantly compared to 1080p or lower.
How does Seed 2.1 Turbo compare to GPT-4 Vision for image understanding?
Without public benchmarks like MMMU or MathVista scores, we can't make a direct quality comparison. GPT-4 Vision has years of production validation; Seed 2.1 Turbo is a newer entrant with aggressive pricing. If cost is the priority and you can tolerate some quality uncertainty, Seed is worth testing. For mission-critical vision tasks, stick with GPT-4o until ByteDance publishes benchmark results.
Should I use Seed 2.1 Turbo for real-time video chat applications?
The "Turbo" label suggests optimized latency, but ByteDance hasn't published time-to-first-token or throughput numbers. For real-time video chat, you need sub-500ms response starts and stable streaming. Test latency in your target region before committing. The pricing makes it attractive for high-volume video processing, but latency unknowns are a risk for synchronous user-facing features.
Compare with
More language models
- ByteDance: UI-TARS 7B bytedance
- Cohere: Command Acohere
- Cohere: Command A+cohere
- Cohere: Command R (08-2024)cohere
- Cohere: Command R+ (08-2024)cohere
- Cohere: Command R7B (12-2024)cohere
- Cohere: North Mini Code (free)cohere
- DeepSeek: DeepSeek Flash Latestdeepseek
- DeepSeek: DeepSeek Pro Latestdeepseek
- DeepSeek: DeepSeek V3deepseek
- DeepSeek: DeepSeek V3 0324deepseek
- DeepSeek: DeepSeek V3.1deepseek