#07Anthropic· released 2026-05-27

Anthropic: Claude Opus 4.8.

Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token...

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Context
1.0M
Input $/1M
$5.00
Output $/1M
$25.00
Modality
text · image · file

Benchmarks

How these are aggregated →
Arena Elo
1546
LMArena — human blind votes
AA Index
66.0
Artificial Analysis composite
LiveBench
81.1
Contamination-resistant
GPQA
88.2%
Grad-level science reasoning
MMLU-Pro
85.9%
Broad knowledge
SWE-bench
75.1%
Real GitHub bugs (Verified)
Terminal-Bench
51.7%
Agentic shell tasks
ARC-AGI
18.7%
Abstract reasoning
Aider Polyglot
87.6%
Multi-language code editing
Speed
46 tok/s
Median output speed

Nearby on the leaderboard