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Models › bytedance-seed › ByteDance Seed: Seed 2.1 Turbo

ByteDance Seed: Seed 2.1 Turbo — pricing & benchmarks

By bytedance-seed · Updated 2026-10-06 · Reads imagesreads images / documentsstep-by-step reasoning

ByteDance Seed: Seed 2.1 Turbo costs $0.5 per 1M input tokens and $2.5 per 1M output tokens, with a 262K context window. It is best suited for reads images / documents, step-by-step reasoning, and is available through one OpenAI-compatible Appmo API key.
$0.5Input / 1M
$2.5Output / 1M
262KContext

What ByteDance Seed: Seed 2.1 Turbo is used for

ByteDance Seed: Seed 2.1 Turbo is best suited for reads images / documents, step-by-step reasoning. Access it through one Appmo API key alongside 458 other models — Appmo's optimizer can route to it automatically when it is the best value for a request.

Use it via the Appmo API (OpenAI-compatible)

curl https://appmo.com/v1/chat/completions \
  -H "Authorization: Bearer $APPMO_KEY" \
  -d '{"model":"bytedance-seed/seed-2-1-turbo","messages":[{"role":"user","content":"Hello"}]}'

FAQ

How much does ByteDance Seed: Seed 2.1 Turbo cost?
ByteDance Seed: Seed 2.1 Turbo costs $0.5 per 1M input tokens and $2.5 per 1M output tokens ($1 blended), as of 2026-10-06. Prices are expected to fall as competition increases.

What is ByteDance Seed: Seed 2.1 Turbo best for?
ByteDance Seed: Seed 2.1 Turbo is best suited for reads images / documents, step-by-step reasoning.

How do I use ByteDance Seed: Seed 2.1 Turbo?
Send requests to Appmo's OpenAI-compatible endpoint with model id "bytedance-seed/seed-2-1-turbo" and one API key — no separate provider account needed.

Is ByteDance Seed: Seed 2.1 Turbo open source?
We have no record of public weights for ByteDance Seed: Seed 2.1 Turbo; treat it as a closed model available only through its provider's API.

Can ByteDance Seed: Seed 2.1 Turbo create images?
No. ByteDance Seed: Seed 2.1 Turbo can read and understand images, but it only writes text.