ByteDanceSeed 2.0 Code
ByteDance's Seed 2.0 code is a chat model capable of processing lengthy inputs with a context window of 256,000 tokens, allowing it to handle complex and extended conversations. It is genuinely best at tasks that require streaming, function calling, and extended thinking, making it suitable for applications that need to generate structured output.
Input
Output
Context
256K
Max Output
128K
Parameters
-
Technical Specifications
Input Modalities
Output Modalities
Capabilities
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Frequently asked questions about Seed 2.0 Code
Answered from the entry's own fields: context, license, modalities, evidence, serving and the memory to self-host.
Seed 2.0 Code advertises a context window of 256,000 tokens, with a maximum output of 128,000 tokens in a single response. The figure is the creator's published maximum; a given provider may serve less, and the gateway routes on what each provider actually serves.
Yes. Seed 2.0 Code is an open-weight model released under the Apache 2.0 license, so the weights can be downloaded and self-hosted within that license's terms.
Seed 2.0 Code accepts Text, Image, Audio and Video and produces Text and Video. The capabilities card on this page lists which API features each deployment honours, such as function calling and structured output, with the source each was checked against.
No published benchmark result for Seed 2.0 Code is in the catalog yet, so the model is shown as unmeasured. It is not ranked or estimated; the router treats it as unknown for every task until a suite measures it.
Yes. Seed 2.0 Code is served on the managed pool through the OpenAI-compatible endpoint as bytedance-seed-2-0-code, pinned by name or chosen by routing when it is the best fit for a request. The Try in Playground button opens it directly.
ByteDance has not published a parameter count for Seed 2.0 Code, so the catalog cannot estimate its memory footprint. The capacity planner can size it from a parameter count you supply.
Fields collected from public registries, provider APIs and benchmark publishers, each tagged with its source.
Last updated: Nov 6, 2026
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