Doubao Seed 2.1 Pro API Pricing
Doubao Seed 2.1 Pro is ByteDance's Seed 2.1 flagship on Volcano Ark, refreshed on September 15, 2026 with a 1M-token context. Its official CNY rate is CNY 6/M input, CNY 30/M output, and CNY 1.2/M cache-hit input for the whole window; shown here as $0.893/$4.46/$0.178 per M at the catalogue's dated CNY rate.
Run the numbers.
Live calculator preloaded with the official Volcano Ark list price for doubao-seed-2.1-pro. It uses the published 0-256K input tier and makes the CNY-to-USD conversion explicit.
Counts use a chars-per-token calibration measured on the vendor's own published tokenizer (ByteDance-Seed/Seed-OSS-36B-Instruct, 2026-06-10). English prose is typically within a few percent; code and non-Latin scripts tokenize heavier. For billing-exact counts use the vendor's count-tokens API.
| Model | Input /M | Output /M | Effective blended | Context | Best for |
|---|---|---|---|---|---|
| Doubao Seed 2.1 Pro Current | $0.893 cache $0.178 | $4.46 | $0.64 agentic 92/8 | 1M | ByteDance's Seed 2.1 flagship |
| Doubao Seed Evolving | $0.893 cache $0.178 | $4.46 | $0.64 same | 1M | Weekly-updated coding model, same price |
| Doubao Seed 2.1 Lite | $0.119 cache $0.0238 | $0.402 | $0.0698 −9.2× | 1M | Low-cost omni-modal Seed 2.1 work |
| Doubao Seed 2.0 Pro | $0.476 cache $0.0952 | $2.38 | $0.341 −47% | 256K | Previous Seed flagship |
| Doubao Seed 2.0 Lite | $0.0893 cache $0.0179 | $0.536 | $0.0711 −9.0× | 256K | Lower-cost Seed routing |
| Doubao Seed 2.0 Mini | $0.0298 cache $0.006 | $0.298 | $0.0333 −19× | 256K | High-volume text routing |
By spend amount - USD
By workload type
Frequently asked.
Pricing questions for ByteDance's newest listed Seed API model, with the CNY source and USD conversion kept separate.
Q · 01 What is the Doubao Seed 2.1 Pro API price? +
doubao-seed-2.1-pro at CNY 6.00/M input, CNY 1.20/M cache-hit input, and CNY 30.00/M output. At the catalogue's dated reference rate that is $0.893, $0.178, and $4.46 per million tokens.Q · 02 Does Seed 2.1 Pro use a long-context pricing tier? +
260915 snapshot the price row has one condition, input length from 0 to 1,024K, at the same CNY 6 / 1.20 / 30 that the earlier 256K row carried - so the window quadrupled without a long-context surcharge.Q · 03 How does caching change the cost? +
CNY 1.20/M, exactly 20% of the fresh-input price. The default agentic calculator uses an 82% cache-hit rate, but your actual savings depend on whether requests reuse matching cached context.Q · 04 Are the displayed USD prices vendor charges? +
Q · 05 Is Doubao Seed 2.1 Pro the same as Seed 2.1 Turbo? +
CNY 6/M input and CNY 30/M output; the Turbo row is CNY 3/M input and CNY 15/M output.Q · 06 What changed on September 15, 2026? +
doubao-seed-2-1-pro-260915, with a 1,024K context window (the June 260628 snapshot had 256K) and upgraded coding, agent and multimodal abilities. The price did not move. The same day ByteDance released Seed 2.1 Lite.