HomeDoubao-Seed-1-8-251228
N/A
Model parameter quantity
ByteDance
Affiliated organization
Closed Source
License Type
December 18, 2025
Release time
Related figures
Model Introduction
The deep reasoning model released by ByteDance, version 1.8-251228.
Comprehensive score
Language dialogue
Knowledge reserve
Reasoning association
Mathematical calculation
Code writing
Command following
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Language comprehension ability
Capable of understanding complex contexts and generating logically coherent sentences, though occasionally off in tone control.
8.3
Knowledge coverage scope
Possesses core knowledge of mainstream disciplines, but has limited coverage of cutting-edge interdisciplinary fields.
8.9
Reasoning ability
Unable to maintain coherent reasoning chains, often causing inverted causality or miscalculations.
4.6
Model comparison
Doubao-Seed-1-8-251228 vs Qwen2.5-7B-Instruct
Like Qwen2, the Qwen2.5 language models support up to 128K tokens and can generate up to 8K tokens. They also maintain multilingual support for over 29 languages, including Chinese, English, French, Spanish, Portuguese, German, Italian, Russian, Japanese, Korean, Vietnamese, Thai, Arabic, and more.
Doubao-Seed-1-8-251228 vs Hunyuan-T1-20250822
The deep reasoning model independently developed by Tencent adopts the version number hunyuan-t1-20250822.
Doubao-Seed-1-8-251228 vs Spark-X1
The inference model Spark X1 released by iFlytek, on the basis of leading domestic mathematical tasks, benchmarks the performance of general tasks such as inference, text generation, and language understanding against OpenAI o1 and DeepSeek R1.
Related model
Seed-OSS-36B-Instruct
Seed-OSS is an open-source large language model developed by ByteDance's Seed Team, designed for powerful long-context, reasoning, agent and general capabilities, and versatile developer-friendly features.
Doubao-Seed-1.6-251015 (Thinking)
The deep reasoning model released by ByteDance, which supports manual switching of deep reasoning, and its performance is significantly improved compared to doubao-1.5.
Seed-OSS-36B-Instruct
Seed-OSS is an open-source large language model developed by ByteDance's Seed Team, designed for powerful long-context, reasoning, agent and general capabilities, and versatile developer-friendly features.
Doubao-Seed-1.6-thinking-250715
The latest version of the seed series model launched by ByteDance, which supports the thinking mode.
Doubao-1.5-thinking-pro-250415
The new deep thinking model Doubao-1.5 performs outstandingly in professional fields such as mathematics, programming, scientific reasoning, and general tasks such as creative writing. It has reached or is close to the industry's top tier level on multiple authoritative benchmarks such as AIME 2024, Codeforces, and GPQA
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