Open-source Ornith-1.5 released: 9B to 397B, performance rivals Claude Opus
nikola_mr64990 · x · 2026-08-20
The Ornith-1.5 family of open-source models has been released, featuring 9B Dense, 35B MoE, and 397B MoE variants. Trained via end-to-end self-improvement strategies, it achieves SOTA among open-source models on benchmarks like Terminal-Bench and SWE-Bench, delivering performance comparable to Claude Opus 4.8 in reasoning, agentic, and coding tasks.
Related event: Ornith-1.5 Release: 397B MoE Self-Improvement Targets Claude Opus(24 posts)→
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