BREAKING
Claude Sonnet 5 Quietly Rolling Out
No Official Announcement Yet
Sonnet Line Through the Versions
1
Sonnet 4.5 Sep 2025
↓
2
Sonnet 4.6 Feb 2026
↓
3
Sonnet 5 rumored
0
M
context tokens
0
%
SWE-Bench reported
0
$
input per 1M
Opus Power at Sonnet Price
Sonnet 5
new
●
Framed as smarter and efficient
●
About half the cost of Opus 4.5
Opus 4.8
top tier
●
Highest-end lineup
●
Targeted as a rival benchmark
Awaiting Official Confirmation
AI NEWS BLITZ
User reports say Anthropic has begun a quiet rollout of Claude Sonnet 5.