Claude Opus 4.8

Release Date: May 27, 2026     Creator: Anthropic

Claude Opus 4.8 is an improved version of Opus 4.7, with major improvements in Coding, Reasoning and analysis.

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Model Specifications
Knowledge Cutoff
January 2026
N/A
Context (VividLLM)
64,000 Tokens
N/A
With a context window of 64,000 tokens, this model can 'remember' and analyze up to 96 pages of data at once. This makes it a top choice for processing technical manuals and multi-chapter reports.
Context (Native)
1,000,000 Tokens
N/A
Input ModalitiesTextImagePDFTextImagePDF
Tool Calling
yes
N/A
Output TypeTextText
Default Max Output81928192
Input Weight
4.00 x (Pro)
N/A
Output Weight
4.00 x (Pro)
N/A
Industry Benchmarks
Intelligence Index (Artificial Analysis) 61.4 N/A
Coding Index (Artificial Analysis)56.7N/A
Math Index (Artificial Analysis)N/AN/A
Response Speed
Output Tokens per second 67.10 N/A
Median Time to First Token Seconds8.97sN/A

Benchmarks accessed via : Artificial Analysis

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