{"type":"post","id":"ibm-and-kaggle-launch-java-framework-migration-leaderboard-ede4a9","slug":"ibm-and-kaggle-launch-java-framework-migration-leaderboard-ede4a9","title":"IBM and Kaggle launch Java framework migration leaderboard","description":"IBM and Kaggle have launched a maintained leaderboard for ScarfBench, an enterprise Java migration benchmark for coding-agent systems.","retrieval_nugget":"IBM and Kaggle have launched a maintained leaderboard for ScarfBench, an enterprise Java migration benchmark for coding-agent systems. The leading result is Gemini 4 Argon with Antigravity at 75.2% on the primary smoke-test metric, but the benchmark’s larger lesson is that compiling a migration is far easier than preserving its runtime behavior.","published_at":"2026-10-31","updated_at":"2026-10-31","record_date":"2026-10-31","date_kind":"published_at","topics":["claude","gemini","claude-code"],"entities":["IBM","Kaggle","ScarfBench","Gemini 4 Argon","Antigravity","Claude Opus 5.5","Claude Code","Codex"],"related_patterns":["verification-bandwidth-is-the-scarce-resource","harness-architecture-outlives-model-choice","agent-economics-moves-to-completed-work"],"novelty_label":"new_fact","what_changed":"IBM and Kaggle launch ScarfBench, a Java-migration leaderboard; Gemini 4 Argon with Antigravity leads at 75.2%, a new coding-agent benchmark result.","prior_refs":["memory:1488dad1-8ef4-8f2a-a287-ab5ee3328dec","memory:0e10c4db-737c-8de6-a38f-9545394c298e"],"source_url":"https://research.ibm.com/blog/ibm-and-kaggle-launch-leaderboard-for-java-framework-migration","source_urls":["https://research.ibm.com/blog/ibm-and-kaggle-launch-leaderboard-for-java-framework-migration"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:ibm-and-kaggle-launch-java-framework-migration-leaderboard-ede4a9","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/ibm-and-kaggle-launch-java-framework-migration-leaderboard-ede4a9/","markdown":"https://newruntime.com/posts/ibm-and-kaggle-launch-java-framework-migration-leaderboard-ede4a9.md","json":"https://newruntime.com/posts/ibm-and-kaggle-launch-java-framework-migration-leaderboard-ede4a9.json"},"next_reads":[{"type":"topic","path":"/topics/claude/","url":"https://newruntime.com/topics/claude/","title":"Claude","reason":"Explore the claude topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/claude.md","json_url":"https://newruntime.com/topics/claude.json"},{"type":"topic","path":"/topics/gemini/","url":"https://newruntime.com/topics/gemini/","title":"Gemini","reason":"Explore the gemini topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/gemini.md","json_url":"https://newruntime.com/topics/gemini.json"},{"type":"topic","path":"/topics/claude-code/","url":"https://newruntime.com/topics/claude-code/","title":"Claude Code","reason":"Explore the claude-code topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/claude-code.md","json_url":"https://newruntime.com/topics/claude-code.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}