Zyphra's ZAYA1-8B model matches top AI benchmarks with under 1B parameters

Zyphra has released ZAYA1-8B, an open-source model that achieves performance comparable to DeepSeek-R1 on math benchmarks. The model also demonstrates competitive reasoning capabilities against Claude Sonnet 4.5 and approaches Gemini 2.5 Pro in coding tasks. Notably, ZAYA1-8B operates with fewer than one billion active parameters. AI

Summary written by gemini-2.5-flash-lite from 1 source. How we write summaries →

IMPACT Offers a new, efficient open-source model for math and coding tasks, potentially lowering barriers for researchers and developers.

RANK_REASON Open-source model release from a non-frontier lab with benchmark results. [lever_c_demoted from research: ic=1 ai=1.0]

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• Zyphra
• ZAYA1-8B
• DeepSeek-R1
• Claude Sonnet 4.5
• Gemini 2.5 Pro

• model release
• paper