iSWE-Agent achieves Rank-1 on SWE-PolyBench (Full) Java leaderboard

Created on February 06, 2026

2026   ·   Reading time: 1 minutes.

iSWE-Agent, IBM Research’s software engineering agent, achieved Rank #1 on the SWE-PolyBench (full) Java leaderboard with a 33.33% resolution rate. On the Verified subset, iSWE-Agent scores 46.38% on Java, matching Atlassian Rovo Dev and significantly outperforms PrometheusV1.2 + GPT-5 (33.33%).

iSWE-Agent achieves Rank-1 on SWE-PolyBench (Full) Java leaderboard (6 February 2026)
iSWE-Agent on SWE-PolyBench (Verified) Java — matches Atlassian Rovo Dev, outperforms PrometheusV1.2