Claude Fable 5

Routed in Core
by Anthropic

Frontier agentic reasoning, long-context work, and difficult engineering.

60Artificial Analysis Index
$2.75Observed benchmark task
$10 in$50 out
74tokens per second

What we know

Open source
Availability
Available through Core's model router
Core fit
64 / 100 · Frontier
Public intelligence
60 · max effort
Benchmark snapshot
Jul 2026
Input price
$10 per 1M tokens
Output price
$50 per 1M tokens
Cache read
$1 per 1M tokens