Claude Opus 4.8
LatestAnthropic
•
Proprietary# 10
Released
May 28, 2026
# 3
Context Length
1M
Benchmarks
# 5
Code RankedAGI
86.1%
# 3
SWEBench Pro
69.2%
# 5
Terminal Bench 2.1
82.7%
# 4
Agentic RankedAGI
87.7%
# 4
Code Arena
1561
# 3
DeepSWE
58.0%
# 2
OSWorld Verified
83.4%
# 5
Reason RankedAGI
84.1%
# 4
HLE
49.8%
# 5
HLE w/ Tools
57.9%
# 4
Text Arena
1483
# 40
Math RankedAGI
71.5%
# 3
RAGI RankedAGI
74.6%
# 2
GDPval AA
1890
# 4
MCP Atlas
77.8%
# 11
Finance Agent
53.9%
# 19
Code DesignArena
1281
# 2
Toolathlon Pass@1
59.9%
# 3
Cursor Bench 3.1
63.8%
# 2
GDPval AA v2
1615
Pricing
# 41
Input Cost /M
$5
# 47
Output Cost /M
$25