Seed 2.1 Turbo is a multimodal model from ByteDance Seed for coding and long-horizon agent workflows. It is suited for end-to-end software delivery, multi-step task execution, and understanding visual and...
With CoreAI, you can start chatting with ByteDance Seed: Seed 2.1 Turbo instantly — no separate subscription needed. CoreAI lets you chat with ByteDance Seed: Seed 2.1 Turbo alongside 300+ other AI models from Bytedance-seed and other providers like OpenAI, Anthropic, Google, Meta, and more.
Measured against all 392 chat models CoreAI serves, ByteDance Seed: Seed 2.1 Turbo sits at #157 for context capacity — 262K tokens, roughly 196,608 words or 393 pages of text in a single conversation. On price, it is the #59 cheapest of 183 standard-tier models by input cost. Released 2026-08-12, it is one of the 1 newest additions to the catalog. It supports step-by-step reasoning (thinking mode) and accepts image input.
Every model in this table is available on CoreAI — open the web app and run the same prompt through ByteDance Seed: Seed 2.1 Turbo and ByteDance Seed: Seed-2.0-Code side by side to judge with your own eyes.
A typical question (about 1,000 tokens in, 500 out) runs $0.00175 on ByteDance Seed: Seed 2.1 Turbo's raw per-token rates; a heavy session with a 50K-token document costs about $0.038. On CoreAI you don't juggle these numbers — one subscription covers ByteDance Seed: Seed 2.1 Turbo and 300+ other models under a plan usage limit, with no API keys. See plans.
ByteDance Seed: Seed 2.1 Turbo handles 262K tokens of context — roughly 196,608 words, or about 393 pages of text in one conversation.
ByteDance Seed: Seed 2.1 Turbo's underlying rates are $0.5 per 1M input tokens and $2.5 per 1M output tokens. On CoreAI it is included in one subscription alongside 300+ models, so there is no per-token billing to manage.
Yes — ByteDance Seed: Seed 2.1 Turbo accepts image input, so you can attach screenshots, photos or diagrams and ask questions about them.
Yes. ByteDance Seed: Seed 2.1 Turbo can work through problems step by step before answering; on CoreAI you can toggle thinking mode per message.
Open the CoreAI web app or the iOS/Android app, pick ByteDance Seed: Seed 2.1 Turbo in the model selector, and chat — no API key, no per-token billing. One subscription covers ByteDance Seed: Seed 2.1 Turbo and 300+ other models.
The closest alternatives on CoreAI are ByteDance Seed: Seed-2.0-Code, Sakana: Sakana Namazu, inclusionAI: Ling-2.6-flash — similar tier and capability. The fastest way to choose is running one prompt through them side by side in CoreAI's Compare view.
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