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Claude Code

Fable 5

Inside Claude Code we ask for claude-fable-5 every hour. Everything below comes from those runs on our lab machine.

Claude Codeclaude-fable-5Think setting highLast round 4m agoFeatured

Write speed, last 24 hours

30.9answer tok/s

7.79s typical total wait

Likely middle: 5.59s8.17s

Visible answer tokens per second across the whole command. Hidden thinking does not make this number larger. Higher is faster. These are the middle values of 22 completed checks out of 24 scheduled in the last 24 hours.

Time to first word
3.26s
How long before the first visible word shows up. Lower is better.
Typical total wait
7.79s
How long the whole command took, start to finish, including the app booting. Lower is faster.
Last ping
The newest tiny “reply ok” check. It measures wake-up time, not writing speed.

What stands out

Four facts pulled straight from the saved runs.

Board position
#5 of 10
Just ahead: Opus 5 at 6.89s total wait. Just behind: Haiku 4.5 at 8.12s total wait.
Answered when scheduled
22/24
Completed answers out of all scheduled checks in the last 24 hours.
Served as
claude-fable-5
The model name the app reported back. If it differs from the pin, we say so.
Round-to-round swing
2.3×
How much the fastest round beat the slowest one. A big swing means a noisy day.
Rate limit warnings
9
Rounds the vendor served but flagged the plan's usage window. They count in experienced speed because the reader really waited through them.

Recent rounds

Newest first. Fails stay in the list with their reason.

WhenResultWriting speedTotal wait
4m agorate limit warningclean30.8 tok/s7.82s
2h agooverloadedclean
3h agorate limit warningclean54.9 tok/s4.39s
4h agorate limit warningclean41.7 tok/s5.78s
5h agorate limit warningclean49.9 tok/s4.83s
6h agorate limit warningclean43.1 tok/s5.59s
7h agorate limit warningclean48.2 tok/s5.00s
8h agorate limit warningclean53.3 tok/s4.53s

All rounds are in Logs.

Read next

Compare with GPT-5.6 Sol

Its closest rival in Codex — same window, same units, with the leader marked on every row.

Compare with Opus 5

The pin next to it in Claude Code. See what the tier jump buys inside one app.

More models

How to read this

Every number here comes from our lab machine running the paid app, one try per hourly round. The live check uses test kit v0.2; recovered history appears only after its raw file passes the same visible-speed rules. Our measurements, not the vendor’s.