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Doubao Seed 2.1 Pro
bytedance·bytedance/doubao-seed-2.1-pro·GA·Closed·seed series·NEW
Higher-capability model in the Doubao Seed 2.1 family for agentic coding, long-context analysis, complex instruction following, and productivity workflows. Supports a 256k context window and up to 128k output tokens. Note: privacy and logging guarantees may be limited.
At a glance
Reference price$1.00 / $5.00 per 1M
Cache read $0.50 · NanoGPT
Lowest paid$1.00 / $5.00
NanoGPT Gateway
Context256,000
Output limit128,000
Capabilities
ReasoningTool useStructured output? TemperatureAttachments
Modalities
Text
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 1 providers1 with public prices
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| NanoGPT | Gateway | $1.00 | $5.00 | $0.50 | — | 256,000 | 128,000 |
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
1NanoGPT$390.00
The cheapest paid channel is the only channel.
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—Qwen3-Next 80B-A3B Instructcheaper alternative$0.144 / $0.574Qwen3-Coder 30B-A3B Instructcheaper alternative$0.216 / $0.861Qwen3 Coder Nextcheaper alternative$0.50 / $1.20Llama-3.1-8B-Instructcheaper alternative$0.15 / $0.45
Price historyone sample accumulated per data sync
Input listOutput listMin blended