AnthropicClaude Opus 4.5 Yes.
How we confirmed it
Released via official access
November 24, 2025 at 12:00 AM UTC
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Benchmarks
Coding#34
Claude Opus 4.5 · via BenchLM.ai · captured Jul 3, 2026 · source
74.5
Agentic#19
Claude Opus 4.5 · via BenchLM.ai · captured Jul 3, 2026 · source
73.5
Reasoning#25
Claude Opus 4.5 · via BenchLM.ai · captured Jul 3, 2026 · source
69.6
Knowledge#13
Claude Opus 4.5 · via BenchLM.ai · captured Jul 3, 2026 · source
82.4
Math#5
Claude Opus 4.5 · via BenchLM.ai · captured Jul 3, 2026 · source 94.9
MultimodalGrounded#49
Claude Opus 4.5 · via BenchLM.ai · captured Jul 3, 2026 · source
61.2
Multilingual#20
Claude Opus 4.5 · via BenchLM.ai · captured Jul 3, 2026 · source
81.4
Humanity's Last Exam
claude-opus-4-5-20251101 · via Epoch AI · captured Jul 3, 2026 · source 14.2
LM Arena#25
claude-opus-4-5-20251101 · via LM Arena · 71,135 votes · captured Jul 3, 2026 · source 1469.28
Sourced metrics mirrored with attribution — not community sentiment.
Data from [BenchLM.ai](https://benchlm.ai).
Data from [Epoch AI, “AI Benchmarking Hub”](https://epoch.ai/benchmarks) (CC BY 4.0).
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[Compare Claude Opus 4.5 with another model →](/compare?models=claude-opus-4-5)
Also 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)
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