21:34
2026-06-29
ii.inc
ai-agents
Show HN: Zenith: sota harness for normal models to beat Fable on FrontierSWE
Zenith, a new agent harness developed by an unnamed team, lifted OpenAI's GPT-5.5 from 5th to 1st place on the FrontierSWE benchmark, outperforming Anthropic's Claude Fable. The harness improves perfo…