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Seed 2.1 Turbo
bytedance-seed·bytedance-seed/seed-2.1-turbo·GA·Closed·seed series·NEW
Faster ByteDance Seed 2.1 model for multimodal reasoning and latency-sensitive agent workflows
At a glance
Reference price$0.63 / $3.13 per 1M
Cache read $0.63 · EmpirioLabs AI
Lowest paid$0.354 / $1.77
Ofox Gateway · 1.8× spread
Context256,000
⚠ Providers report 256,000–262,144; the table below is authoritative
Output limit65,536
Capabilities
✓ Reasoning✓ Tool use✓ Structured output✓ Temperature✓ Attachments
Modalities
TextImageVideo
Knowledge cutoff—
Released / updated2026-06-23 / 2026-06-23
Quality & performance
Artificial Analysis doesn't cover this model (267 of 2059 have data). Quality data comes from independent evals covering widely used models.
Available at 4 providers4 with public prices
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| Ofox volcengine/doubao-seed-2.1-turbo | Gateway | $0.354 | $1.77 | $0.068 | $0.0019 | 256,000 | 256,000 | |
| OpenRouter bytedance-seed/seed-2-1-turbo | Gateway | $0.50 | $2.50 | — | — | 262,144 ⚠ | 262,144 | |
| Venice AI seed-2-1-turbo | Gateway | $0.625 | $3.13 | $0.125 | — | 256,000 | 65,536 | |
| EmpirioLabs AI seed-2-1-turbo | Gateway | $0.63 | $3.13 | $0.63 | — | 256,000 | 65,536 |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Your usage cost
1Ofox$124.93
2Venice AI$221.25
3OpenRouter$225.00
4EmpirioLabs AI$282.50
The cheapest paid channel is the only channel.
Benchmark
No upstream benchmark data for this model. For quality, see the Artificial Analysis intelligence score above.
Reasoning control
Toggle (on / off)effort = loweffort = mediumeffort = high
2 / 4 providers expose no reasoning control (reasoning_options: []).
Related models
ByteDance Seed 2.1 Turbosame series$0.50 / $2.50ByteDance Seed: Seed 2.1 Turbosame series$0.50 / $2.50Seedance 2.5same series—DeepSeek V4 Procheaper alternative$0.435 / $0.87DeepSeek V4 Flashcheaper alternative$0.14 / $0.28MiniMax-M2.7cheaper alternative$0.30 / $1.20DeepSeek V4 Flash 0731cheaper alternative$0.479 / $1.44
Price historyone sample accumulated per data sync
Input listOutput listMin blended