Ornith-1.5 Launches: 397B Model Matches Claude Opus in Coding Benchmarks

testingcatalog · x · 2026-08-19

DeepReinforce released the Ornith-1.5 family of open models in 397B MoE, 35B MoE, and 9B Dense sizes. The flagship 397B model scores 86.1 on Terminal-Bench 2.1 and 86 on SWE-bench Verified, matching the performance of Claude Opus 4.8. The 35B model, activating only 3B parameters per token, significantly outperforms peers like Qwen and Gemma on agentic coding tasks. A quantized 9B-Mobile build is also available for on-device deployment on iPhone and Android.

Related event: Open-Source Ornith-1.5 Family Released, 397B MoE Claims Claude Opus-Level Performance(13 posts)→

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