0xSero
gemma-4-21b-a4b-it-REAP is a open-weight 0xSero llm model with a 262,144 token context window.
Running this yourself: likely needs a rented cloud gpu.
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Quality Score
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Arena ELO
21B
Parameters
262K
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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Apr 2026
Released