Baidu
ERNIE-4.5-21B-A3B-Thinking is Baidu's upgraded lightweight MoE model, refined to boost reasoning depth and quality for top-tier performance in logical puzzles, math, science, coding, text generation, and expert-level academic benchmarks.
This model is still tracked for research and discovery, but it is excluded from default public rankings until it returns to active status.
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Quality Score
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Arena ELO
21B
Parameters
131K
Context
Use this section to answer one simple question first: how much outside evidence do we have that this model performs well? Structured benchmark scores appear first, then official provider evidence, then live arena signal.
This model belongs to a benchmark-expected category, but stable public benchmark evidence has not been ingested yet.
A full normalized benchmark row is not available for this model yet.
This usually means public benchmark sources have not published stable data for this release yet.
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Oct 2025
Released