seed-1-8-251228

Language ByteDance Seed Partly verified Released Dec 28, 2025
  • Out Output modalities: Text
  • Reasoning
  • Reasoning can be off
  • Tool use
  • Structured output

Prices

1 offering · prices as listed
BytePlus ModelArk (opens in a new tab) Official ap-southeast-1 · USD seed-1-8-251228
Conditions/ 1M tokensInputCache readOutput
Standard past price, from the vendor’s page archived Oct 6, 2026$0.25$0.050$2.00
Prompts over 128K tokens past price, from the vendor’s page archived Oct 6, 2026$0.50$0.050$4.00
Batch past price, from the vendor’s page archived Oct 6, 2026$0.125$0.050$1.00
Prompts over 128K tokensBatch past price, from the vendor’s page archived Oct 6, 2026$0.25$0.050$2.00

Prices from Pricing--ModelArk-Byteplus (opens in a new tab) (checked Oct 11, 2026)

Standard: the price a request with no conditions pays (the headline price elsewhere on the site).

Details

Family
seed
Model ID

Not stated on ByteDance Seed’s pages: max input, input modalities, reasoning efforts, max thinking budget, built-in tools, knowledge cutoff, aliases.

Cited scores

From third-party leaderboards, not measured by us

This model isn’t on any leaderboard we cite yet.

  1. New language model

Sources

ByteDance Seed’s official policies: data use, privacy, terms →

Some values on this page are still waiting to be checked against official pages: a filled dot is verified, a hollow one is not yet (with or without a source on file). How we verify data

ByteDance Seed · China · seed.bytedance.com

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