#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...

View on OpenRouter ↗
Context
1.0M
Input $/1M
$5.00
Output $/1M
$25.00
Modality
text · image · file

Benchmarks

How these are aggregated →
Arena Elo
1548
LMArena — human blind votes
AA Index
67.0
Artificial Analysis composite
LiveBench
80.1
Contamination-resistant
GPQA
87.6%
Grad-level science reasoning
MMLU-Pro
88.4%
Broad knowledge
SWE-bench
74.9%
Real GitHub bugs (Verified)
Terminal-Bench
52.7%
Agentic shell tasks
ARC-AGI
19.6%
Abstract reasoning
Aider Polyglot
82.8%
Multi-language code editing
Speed
38 tok/s
Median output speed

Nearby on the leaderboard