{"type":"post","id":"kimi-k3-1-pro-debuts-at-8-on-bd08e0","slug":"kimi-k3-1-pro-debuts-at-8-on-bd08e0","title":"Kimi K3.1 Pro debuts at #8 on Arena's Code Arena WebDev leaderboard, putting Moonshot 4th among labs","description":"Arena’s Code Arena WebDev leaderboard lists Moonshot’s Kimi K3.1 Pro (Max) at model rank 8, giving Moonshot rank 4 among 24 labs.","retrieval_nugget":"Arena’s Code Arena WebDev leaderboard lists Moonshot’s Kimi K3.1 Pro (Max) at model rank 8, giving Moonshot rank 4 among 24 labs.","published_at":"2026-10-24","updated_at":"2026-10-24","record_date":"2026-10-24","date_kind":"published_at","topics":["anthropic","claude"],"entities":["Arena","Code Arena WebDev","Moonshot","Kimi K3.1 Pro","Anthropic","Claude Opus 5.5","OpenAI","GPT-6 Astra"],"related_patterns":["ai-engineering-evaluations-are-splitting-into-task-specific"],"novelty_label":"same_event","what_changed":"Same event as KIMI AI 🔥 : Kimi K3.1 Pro landed on the 8th spot on WebDev Arena, with Kimi AI moving to the 4th place among AI labs overall.","prior_refs":["memory:c5695bd7-3d4e-89eb-ad68-724a9cfbdb2b"],"source_url":"https://arena.ai/leaderboard/code/webdev?rankBy=labs","source_urls":["https://arena.ai/leaderboard/code/webdev?rankBy=labs"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:kimi-k3-1-pro-debuts-at-8-on-bd08e0","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/kimi-k3-1-pro-debuts-at-8-on-bd08e0/","markdown":"https://newruntime.com/posts/kimi-k3-1-pro-debuts-at-8-on-bd08e0.md","json":"https://newruntime.com/posts/kimi-k3-1-pro-debuts-at-8-on-bd08e0.json"},"next_reads":[{"type":"topic","path":"/topics/anthropic/","url":"https://newruntime.com/topics/anthropic/","title":"Anthropic","reason":"Explore the anthropic topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/anthropic.md","json_url":"https://newruntime.com/topics/anthropic.json"},{"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":"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"}]}