Anthropic Claude Haiku 5.5 43.8% frontierswe.com for Claude Haiku 5.5 on FrontierSWE 2 — October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) FrontierSWE Score Reported October 8, 2026 Benchmark leaderboard Proximal Independent Record for Claude Haiku 5.5 on FrontierSWE 2 — October 2026 evaluation 20018 OpenAI GPT-6 Astra 65.5% frontierswe.com for GPT-6 Astra on FrontierSWE 2 — October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) FrontierSWE Score Reported October 7, 2026 Benchmark leaderboard Proximal Independent Record for GPT-6 Astra on FrontierSWE 2 — October 2026 evaluation 10005 OpenAI GPT-5.6 Sol 32.2% frontierswe.com for GPT-5.6 Sol on FrontierSWE 2 — October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) FrontierSWE Score Reported October 7, 2026 Benchmark leaderboard Proximal Independent Record for GPT-5.6 Sol on FrontierSWE 2 — October 2026 evaluation 10010 Moonshot AI Kimi K3 25.9% frontierswe.com for Kimi K3 on FrontierSWE 2 — October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) FrontierSWE Score Reported October 7, 2026 Benchmark leaderboard Proximal Independent Record for Kimi K3 on FrontierSWE 2 — October 2026 evaluation 120003 Alibaba (Tongyi) Qwen3.8-Max 15.8% frontierswe.com for Qwen3.8-Max on FrontierSWE 2 — October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) FrontierSWE Score Reported October 7, 2026 Benchmark leaderboard Proximal Independent Record for Qwen3.8-Max on FrontierSWE 2 — October 2026 evaluation 130008 Z.ai GLM-5.3 30.2% frontierswe.com for GLM-5.3 on FrontierSWE 2 — October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) FrontierSWE Score Reported October 7, 2026 Benchmark leaderboard Proximal Independent Record for GLM-5.3 on FrontierSWE 2 — October 2026 evaluation 150005 Z.ai GLM-5.3-Flash 18.1% frontierswe.com for GLM-5.3-Flash on FrontierSWE 2 — October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) FrontierSWE Score Reported October 7, 2026 Benchmark leaderboard Proximal Independent Record for GLM-5.3-Flash on FrontierSWE 2 — October 2026 evaluation 150006 Thinking Machines Lab Inkling 4.1% frontierswe.com for Inkling on FrontierSWE 2 — October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) FrontierSWE Score Reported October 7, 2026 Benchmark leaderboard Proximal Independent Record for Inkling on FrontierSWE 2 — October 2026 evaluation 160001 Anthropic Claude Fable 5.1 56.3% frontierswe.com for Claude Fable 5.1 on FrontierSWE 2 — October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) FrontierSWE Score Reported October 7, 2026 Benchmark leaderboard Proximal Independent Record for Claude Fable 5.1 on FrontierSWE 2 — October 2026 evaluation 20004 Anthropic Claude Fable 5 47.0% frontierswe.com for Claude Fable 5 on FrontierSWE 2 — October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) FrontierSWE Score Reported October 7, 2026 Benchmark leaderboard Proximal Independent Record for Claude Fable 5 on FrontierSWE 2 — October 2026 evaluation 20012 Anthropic Claude Opus 5 52.0% frontierswe.com for Claude Opus 5 on FrontierSWE 2 — October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) FrontierSWE Score Reported October 7, 2026 Benchmark leaderboard Proximal Independent Record for Claude Opus 5 on FrontierSWE 2 — October 2026 evaluation 20014 Anthropic Claude Opus 5.5 62.3% frontierswe.com for Claude Opus 5.5 on FrontierSWE 2 — October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) FrontierSWE Score Reported October 7, 2026 Benchmark leaderboard Proximal Independent Record for Claude Opus 5.5 on FrontierSWE 2 — October 2026 evaluation 20015 Anthropic Claude Sonnet 5.5 61.9% frontierswe.com for Claude Sonnet 5.5 on FrontierSWE 2 — October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) FrontierSWE Score Reported October 7, 2026 Benchmark leaderboard Proximal Independent Record for Claude Sonnet 5.5 on FrontierSWE 2 — October 2026 evaluation 20016 Google (DeepMind) Gemini 3.8 Flash 19.6% frontierswe.com for Gemini 3.8 Flash on FrontierSWE 2 — October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) FrontierSWE Score Reported October 7, 2026 Benchmark leaderboard Proximal Independent Record for Gemini 3.8 Flash on FrontierSWE 2 — October 2026 evaluation 30004 Google (DeepMind) Gemini 3.7 Flash 20.3% frontierswe.com for Gemini 3.7 Flash on FrontierSWE 2 — October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) FrontierSWE Score Reported October 7, 2026 Benchmark leaderboard Proximal Independent Record for Gemini 3.7 Flash on FrontierSWE 2 — October 2026 evaluation 30010 SpaceXAI Grok 4.6 25.3% frontierswe.com for Grok 4.6 on FrontierSWE 2 — October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) FrontierSWE Score Reported October 7, 2026 Benchmark leaderboard Proximal Independent Record for Grok 4.6 on FrontierSWE 2 — October 2026 evaluation 40002 SpaceXAI Grok 4.7 29.5% frontierswe.com for Grok 4.7 on FrontierSWE 2 — October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) FrontierSWE Score Reported October 7, 2026 Benchmark leaderboard Proximal Independent Record for Grok 4.7 on FrontierSWE 2 — October 2026 evaluation 40003 Meta AI (originally Facebook AI Research) Muse Spark 1.2 12.0% frontierswe.com for Muse Spark 1.2 on FrontierSWE 2 — October 2026 evaluation (opens in a new tab) Archived copy (opens in a new tab) FrontierSWE Score Reported October 7, 2026 Benchmark leaderboard Proximal Independent Record for Muse Spark 1.2 on FrontierSWE 2 — October 2026 evaluation 80003