How often does Claude use tools? We looked through 2.27M Claude responses we col
Source
SemiAnalysis_
Author
SemiAnalysis_
Published
Why it matters
Tool-call frequency directly drives agent latency and cost, and this is rare measured data on how it differs across current frontier models.
How often does Claude use tools?
We looked through 2.27M Claude responses we collected to find out.
The Opus models show a clear downward trend in tool calls from Opus 4.6 to Opus 4.8.
However, Fable 5 stands out against that pattern, averaging 1.00 tool calls per response https://t.co/tJhc0sT1Qr
Transcript
How often does Claude use tools?
We looked through 2.27M Claude responses we collected to find out.
The Opus models show a clear downward trend in tool calls from Opus 4.6 to Opus 4.8. However, Fable 5 stands out against that pattern, averaging 1.00 tool calls per response https://t.co/tJhc0sT1Qr
