FEATUREDHacker News Frontpage· rssEN14:48 · 08·19
→Ornith-1.5 uses self-generated tasks for RL, with three model sizes beating comparable open-source models on coding and agent benchmarks
Ornith-1.5 extends the self-scaffolding idea from Ornith-1.0 into a full self-improvement loop: the model proposes tasks, builds scaffolds, generates solution rollouts, and improves via RL. The 397B MoE flagship scores 86.1 on Terminal-Bench 2.1 and 56.0 on DeepSWE, matching Claude Opus 4.8 (85.0, 59.0) and beating GLM-5.2 and DeepSeek-V4-Flash-0731. The 35B MoE activates only 3B parameters per token yet outperforms Gemma 4-31B and Meta Muse Glimmer-30B on agentic coding. The 9B dense model has a quantized mobile version that runs on phones and scores 47.0 on Terminal-Bench 2.1 and 70.6 on SWE-Bench Verified, beating many larger models. Task reward multiplies validity, frontier difficulty (targeting a 20% success rate), and novelty. The post does not disclose training compute, data scale, or a release timeline.
#Reasoning#Code#Ornith#Claude Opus 4.8
why featured
Featured · importance 82 · hook + knowledge + resonance
editor take
Ornith-1.5 closes the self-improvement loop—model proposes tasks, builds scaffolds, solves, and learns via RL—matching Claude Opus 4.8 on Terminal-Bench 2.1.
sharp
The reason to click: Ornith-1.5 turns self-improvement from a concept into a working loop. Ornith-1.0 only optimized scaffolds and rollouts; 1.5 adds task generation to the mix. The model looks at an environment, codebase, and its own solving history, then proposes harder tasks, builds scaffolds, produces solution rollouts, and uses RL to propagate reward signals back through all three stages. The reward function multiplies validity, frontier difficulty (targeting a 20% success rate), and novelty—pushing the model to keep operating at its capability edge.
The 397B MoE flagship scores 86.1 on Terminal-Bench 2.1 and 56.0 on DeepSWE, essentially matching Claude Opus 4.8 (85.0, 59.0) and beating GLM-5.2 and DeepSeek-V4-Flash-0731. The 35B MoE activates only 3B parameters per token but crushes Gemma 4-31B and Meta Muse Glimmer-30B on agentic coding. The 9B dense model has a quantized mobile version that runs on phones and scores 47.0 on Terminal-Bench 2.1 and 70.6 on SWE-Bench Verified, outperforming many larger models.
I'd discount this a bit: the post doesn't disclose training compute, data scale, or a release timeline. The self-improvement loop sounds elegant, but quality control for generated tasks, reward signal stability, and whether the loop drifts over time—none of that is spelled out. If the numbers hold, the real story isn't "matching closed-source," it's that this mechanism might let the model keep improving without waiting for new human-curated data. But right now it's just a blog post; wait for the paper and open release.
HKR breakdown
hook ✓knowledge ✓resonance ✓