#9
Claude Sonnet 5.5
claude-sonnet-5-5Helpfulness
Instruction
Following
Comprehension
Empathy
Creative
Writing
Helpfulness
0.0
Instruction Following
0.0
Comprehension
0.0
Empathy
0.0
Creative Writing
0.0
Speed
Avg 90 tok/s
Overall Assistant Score
An average score combining the 5 main categories.
93.20 pts
Rank #9
92th Percentile
0
Novice
33
Capable
66
Proficient
100
Expert
Claude Sonnet 5.5 is Anthropic's September 28th, 2026 Sonnet refresh — Opus-adjacent everyday help at $2/$10. Our tests score helpfulness 93.5, instruction following 95.0, and comprehension 95.5, well above Claude Sonnet 5's 87.5/88.0/89.0. Empathy is 90.5: warmer than Sonnet 4.6's 88.0, short of Opus 5.5's 95.5. Creative writing is 91.5: clearer and more literary than Sonnet 5's 87.0. Speed is 90.0. The default 5.5-family driver when you want strong follow-through without Opus 5.5's bill.
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