BREAKING
Anthropic Unveils Claude Fable 5
Senior Engineer Benchmark
Fable 5
91
Opus 4.8
63
GPT-5.5
62
0
M
lines migrated
0
day
time taken
0
mo+
prior effort
Launch, Suspension, Restore
1
Launch Jun 9
↓
2
Suspended Jun 12
↓
3
Restored Jul 1
Strengths and Drawbacks
Strengths
●
Long-horizon autonomy
●
Handles large codebases
●
Vision and file memory
Drawbacks
●
Heavy token cost
●
Classifier false positives
●
Latency in long sessions
Claude Fable 5 Now Public
AI NEWS BLITZ
Anthropic has opened its top model, Claude Fable 5, to the public.