AnthropicClaude Opus 4.8 Yes.
How we confirmed it
Released via official access
May 28, 2026 at 12:00 AM UTC
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Benchmarks
LM Arena#13
claude-opus-4-8 · via LM Arena · 22,687 votes · captured Jul 3, 2026 · source 1476.51
Coding#3
Claude Opus 4.8 · via BenchLM.ai · captured Jul 3, 2026 · source
97
Agentic#3
Claude Opus 4.8 · via BenchLM.ai · captured Jul 3, 2026 · source
95.5
Knowledge#1
Claude Opus 4.8 · via BenchLM.ai · captured Jul 3, 2026 · source
98.5
MultimodalGrounded#34
Claude Opus 4.8 · via BenchLM.ai · captured Jul 3, 2026 · source
66.4
FrontierCode Diamond
Claude Opus 4.8 · via Epoch AI · captured Jul 3, 2026 · source
13.4
GDP.pdf
Claude Opus 4.8 (Adaptive Max) · via Epoch AI · captured Jul 3, 2026 · source 23
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 4.8 with another model →](/compare?models=claude-opus-4-8)
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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