ByteDance Seed: Seed 1.6
bytedance-seed's mid-tier model. Context window: 262K tokens.
Scores by test
Methodology →What you need to know
Seed 1.6 is optimized for high-precision technical tasks, specifically excelling in structured output, strategic analysis, and faithfulness. With a 262K context window and a perfect 5/5 score in long context and tabular data handling, it is built for processing large datasets without losing coherence or factual accuracy. Its ability to maintain persona consistency and execute agentic planning makes it a strong candidate for complex autonomous workflows.
The model is priced aggressively for its capabilities, with a blended cost of $1.56/MTok. This represents a high-value proposition for developers needing enterprise-grade reasoning and multilingual support without the premium cost of top-tier proprietary models. However, the model exhibits a critical failure in safety calibration, scoring 1/5, which indicates a lack of robust internal guardrails.
Performance is inconsistent in nuanced linguistic tasks, specifically constrained rewriting, where it scores only 3/5. While it handles logic and structure perfectly, it is less effective at following strict stylistic or formatting constraints during text modification.
Use this model for agentic workflows, large-scale data extraction, and strategic analysis where factual precision and structured data are priorities. Skip this model for user-facing applications requiring strict safety filters or tasks involving highly constrained creative rewriting.
Strengths — Top 3
Relative weaknesses — Bottom 3
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