> ## Documentation Index
> Fetch the complete documentation index at: https://docs.apiyi.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Seed 2.1 Turbo Launch: Both Endpoints Verified

> ByteDance's high-frequency production text model dola-seed-2-1-turbo-260628 is live on APIYI at 0.50 USD input / 2.50 USD output per 1M tokens, with Chat Completions and Responses verified 15/15; deep thinking is on by default and can be disabled explicitly.

**2026/7/21 12:22 (UTC+8)** · New Model · ByteDance

🚀 **Seed 2.1 Turbo is live — both endpoints verified 15/15**

ByteDance's high-frequency production text model `dola-seed-2-1-turbo-260628` (released 6/23) is now available on the `default` / `svip` groups at \$0.50 input / \$2.50 output per 1M tokens. Both Chat Completions and Responses passed the full test suite: structured output, two-turn function calling, thinking toggle and tiers, and implicit + explicit two-layer caching are all verified. Note that **deep thinking is ON by default** — pass `thinking: {"type": "disabled"}` for high-frequency short Q\&A to save cost and latency.

Deep dive: [Seed 2.1 Turbo Launch](/en/news/dola-seed-2-1-turbo-launch); onboarding and playgrounds: [Model Overview](/en/api-capabilities/dola-seed-2-1-turbo/overview).

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