Ornith-1.5 Open-Source Models Achieve Claude Opus 4.8 Performance via Self-Improvement
nikola_mr64990 · x · 2026-08-20
Ornith-1.5 introduces a family of open-source LLMs (9B Dense, 35B MoE, 397B MoE) trained with self-improving strategies. It achieves SOTA performance among comparable open-source models and delivers performance comparable to Claude Opus 4.8 across reasoning, agentic, and coding tasks on benchmarks like Terminal-Bench (86.1) and SWE-Bench.
Related event: Ornith-1.5 Release: 397B MoE Self-Improvement Targets Claude Opus(24 posts)→
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