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by Bytedance Seed

ByteDance Seed: Seed 2.1 Turbo.

multimodal closed 262K ctx
Cheapest input
$0.5/M
on OpenRouter
Cheapest output
$2.5/M
on OpenRouter
Hosted equiv.
~$0.9/hr
@ 100 tok/s on OpenRouter

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...

Hosted API only

No self-host path — closed weights.

ByteDance Seed: Seed 2.1 Turbo's weights aren't published. Use it via the access providers below.

Where to use it

Cheapest hosted endpoints.

Provider Access $/M in $/M out
OpenRouter api aggregator $0.5 $2.5 Launch ↗
FAQ

Frequently asked.

How do I run ByteDance Seed: Seed 2.1 Turbo?
ByteDance Seed: Seed 2.1 Turbo is a closed-source API model. The cheapest way to access it is through the API providers listed on this page (direct API, aggregators, and hosted chat UIs).
Where can I access ByteDance Seed: Seed 2.1 Turbo?
ByteDance Seed: Seed 2.1 Turbo is available via OpenRouter. Each access option lists its own pricing (per million tokens or hourly hosting).
How much does it cost to run ByteDance Seed: Seed 2.1 Turbo?
API pricing starts at $0.5/M input tokens and $2.5/M output tokens. Self-hosting cost depends on the GPU you rent — see the Run It Yourself tab.
Is ByteDance Seed: Seed 2.1 Turbo open-source or proprietary?
ByteDance Seed: Seed 2.1 Turbo is a proprietary model from Bytedance Seed. Access is API-only — there are no public weights to download.