{"slug": "claude-opus-4-5-big-gains-in-potatomonetbench-from-opus-4-5-to-fable-there-are-a", "title": "Claude Opus 4.5: Big gains in PotatoMonetBench from Opus 4.5 to Fable: \"There are two controls. One is slider, in which one side is labelled Maximum Potato and the other is Formalware, there are four…", "summary": "Anthropic released Claude Opus 4.5 on November 24, 2025, with benchmark scores including 74.5 in coding, 94.9 in math, and 14.2 on Humanity's Last Exam, as confirmed by official access and third-party sources like BenchLM.ai and Epoch AI.", "body_md": "[Anthropic](/providers/anthropic)Claude Opus 4.5\n\n# Is Claude Opus 4.5 out yet?\n\nYes.\n\nHow we confirmed it\n\nReleased via official access\n\nNovember 24, 2025 at 12:00 AM UTC\n\nWaiting for Anthropic's next model?\n\nOne click creates your free account (or signs you into an existing one) and turns on alerts for Anthropic releases. There's no password to set, and you can unsubscribe any time.\n\nBenchmarks\n\nCoding#34\n\nClaude Opus 4.5 · via BenchLM.ai · captured Jul 3, 2026 · [source](https://benchlm.ai/embed/leaderboard?category=coding)\n\n74.5\n\nAgentic#19\n\nClaude Opus 4.5 · via BenchLM.ai · captured Jul 3, 2026 · [source](https://benchlm.ai/embed/leaderboard?category=agentic)\n\n73.5\n\nReasoning#25\n\nClaude Opus 4.5 · via BenchLM.ai · captured Jul 3, 2026 · [source](https://benchlm.ai/embed/leaderboard?category=reasoning)\n\n69.6\n\nKnowledge#13\n\nClaude Opus 4.5 · via BenchLM.ai · captured Jul 3, 2026 · [source](https://benchlm.ai/embed/leaderboard?category=knowledge)\n\n82.4\n\nMath#5\n\nClaude Opus 4.5 · via BenchLM.ai · captured Jul 3, 2026 · [source](https://benchlm.ai/embed/leaderboard?category=math)\n\n94.9\n\nMultimodalGrounded#49\n\nClaude Opus 4.5 · via BenchLM.ai · captured Jul 3, 2026 · [source](https://benchlm.ai/embed/leaderboard?category=multimodalGrounded)\n\n61.2\n\nMultilingual#20\n\nClaude Opus 4.5 · via BenchLM.ai · captured Jul 3, 2026 · [source](https://benchlm.ai/embed/leaderboard?category=multilingual)\n\n81.4\n\nHumanity's Last Exam\n\nclaude-opus-4-5-20251101 · via Epoch AI · captured Jul 3, 2026 · [source](https://epoch.ai/benchmarks/hle)\n\n14.2\n\nLM Arena#25\n\nclaude-opus-4-5-20251101 · via LM Arena · 71,135 votes · captured Jul 3, 2026 · [source](https://lmarena.ai/leaderboard)\n\n1469.28\n\nSourced metrics mirrored with attribution — not community sentiment.\n\nData from [BenchLM.ai](https://benchlm.ai).\n\nData from [Epoch AI, “AI Benchmarking Hub”](https://epoch.ai/benchmarks) (CC BY 4.0).\n\nVibe rating\n\nHow this model actually feels to use, rated by the people here.\n\nNo vibe ratings yet. Be the first.\n\n[Sign in](/signin) to rate this model.\n\nModel Pulse\n\nHow is this model behaving today? One check-in per person per day: the running record of “did they nerf it”. Resets at midnight UTC.\n\nNo check-ins yet today. Be the first to log how this model is behaving.\n\n[Sign in](/signin)\n\nCommunity consensus\n\nAn AI summary of the public comments here. Not a sourced fact.\n\nNot enough public feedback yet to summarize. Add a comment to help build the picture.\n\n[Compare Claude Opus 4.5 with another model →](/compare?models=claude-opus-4-5)\n\nAlso waiting on: [ChatGPT 5.6](/models/chatgpt-5-6), [Gemini 3.5 Pro](/models/gemini-3-5-pro), [Claude Fable 5.1](/models/claude-fable-5-1), [Claude Mythos 5.1](/models/claude-mythos-5-1)\n\n## Comments\n\nMissing a model, or wishing OutYet did something it doesn't? [Tell us what to build](/submit).", "url": "https://wpnews.pro/news/claude-opus-4-5-big-gains-in-potatomonetbench-from-opus-4-5-to-fable-there-are-a", "canonical_source": "https://outyet.ai/models/claude-opus-4-5", "published_at": "2026-07-06 00:00:00+00:00", "updated_at": "2026-07-07 04:09:28.179727+00:00", "lang": "en", "topics": ["large-language-models", "ai-research", "ai-products"], "entities": ["Anthropic", "Claude Opus 4.5", "BenchLM.ai", "Epoch AI", "LM Arena"], "alternates": {"html": "https://wpnews.pro/news/claude-opus-4-5-big-gains-in-potatomonetbench-from-opus-4-5-to-fable-there-are-a", "markdown": "https://wpnews.pro/news/claude-opus-4-5-big-gains-in-potatomonetbench-from-opus-4-5-to-fable-there-are-a.md", "text": "https://wpnews.pro/news/claude-opus-4-5-big-gains-in-potatomonetbench-from-opus-4-5-to-fable-there-are-a.txt", "jsonld": "https://wpnews.pro/news/claude-opus-4-5-big-gains-in-potatomonetbench-from-opus-4-5-to-fable-there-are-a.jsonld"}}