Seed-OSS is a series of open-source large language models developed by ByteDance's Seed team, designed specifically for powerful long-context processing, reasoning, agents, and general capabilities. Among this series, Seed-OSS-36B-Instruct is an instruction-tuned model with 36 billion parameters that natively supports ultra-long context lengths, enabling it to process massive documents or complex codebases in a single pass. This model is specially optimized for reasoning, code generation, and agent tasks (such as tool usage), while maintaining balanced and excellent general capabilities. A notable feature of this model is the "Thinking Budget" functionality, which allows users to flexibly adjust the inference length as needed, thereby effectively improving inference efficiency in practical applications.
ByteDance-Seed/Seed-OSS-36B-Instruct vs DeepSeek V4 Flash
Compare ByteDance-Seed/Seed-OSS-36B-Instruct from ByteDance and DeepSeek V4 Flash from DeepSeek on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.
(This model currently points to the older 0423 version; if you need to request the latest version, you can choose the model deepseek-v4-flash-0731)DeepSeek-V4 features an ultra-long context of one million characters and achieves leading performance domestically and in the open-source domain in agent capabilities, world knowledge, and reasoning.
Pricing & Specifications
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
Promotional prices show the discounted rate; see each model page for promotion windows.
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Performance Past 3 Days
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Cost calculator
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FAQ
Which is cheaper: ByteDance-Seed/Seed-OSS-36B-Instruct, DeepSeek V4 Flash?
DeepSeek V4 Flash: $0.284/M output tokens; ByteDance-Seed/Seed-OSS-36B-Instruct: $0.534/M. Use the cost calculator above to estimate your own workload.
Which responds faster?
ByteDance-Seed/Seed-OSS-36B-Instruct: 0.6s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.
How large is each context window?
ByteDance-Seed/Seed-OSS-36B-Instruct accepts 256,000 and DeepSeek V4 Flash accepts 1,000,000 input tokens. Maximum output per request is 32,000 tokens on ByteDance-Seed/Seed-OSS-36B-Instruct and 384,000 tokens on DeepSeek V4 Flash.
Which one generates tokens faster?
DeepSeek V4 Flash at 66.5 tok/s and ByteDance-Seed/Seed-OSS-36B-Instruct at 27.0 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.
What inputs and capabilities does each model support?
ByteDance-Seed/Seed-OSS-36B-Instruct accepts text and image input and supports thinking, tool calling, function calling and structured outputs; DeepSeek V4 Flash accepts text input and supports tool calling, function calling, structured outputs and thinking.
Can I call ByteDance-Seed/Seed-OSS-36B-Instruct and DeepSeek V4 Flash with the same API key?
Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.
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