Claude Opus 4.8

Routed in Core
by Anthropic

Deep engineering and difficult multi-step work.

56Artificial Analysis Index
$1.80Observed benchmark task
$5 in$25 out
58tokens per second

What we know

Open source
Availability
Available through Core's model router
Core fit
58 / 100 · Strong
Public intelligence
56 · max effort
Benchmark snapshot
Jul 2026
Input price
$5 per 1M tokens
Output price
$25 per 1M tokens
Cache read
$0.5 per 1M tokens