Claude Opus 5.5
The first of the Claude 5.5 family, on par with Fable 5.1 on most tasks.
$4 / $20per million input / output tokens
Why it matters
Over 30% faster output and 20% cheaper than Opus 5; frontier capability keeps getting cheaper.
Built on
Source: cdn.technews.tw ↗
No official page found; the source is a news report.