Claude Opus 4.6 is Anthropic's newest Opus model with stronger coding and agentic performance, plus support for up to a 1M-token context window.
Added Feb 5, 2026
Context Window
1.0M
Max Output
128.0K
Avg output tokens (7d)
1.7K tokens
Input Price (Auto)
$5.00/1M
Output Price (Auto)
$25.00/1M
Cache Read (Auto)
$0.50/1M
Capabilities
Benchmarks
Benchmarks
Performance metrics and benchmarks
Sourced from Artificial Analysis.
Intelligence Index
37.8
Reasoning
GPQA Diamond
Graduate-level scientific reasoning
84.0%
Better than 84% of models compared
HLE
Humanity's Last Exam
18.6%
Better than 82% of models compared
IFBench
Instruction-following benchmark
44.6%
Better than 52% of models compared
T²-Bench Telecom
Conversational AI agents in dual-control scenarios
84.8%
Better than 76% of models compared
AA-LCR
Long context reasoning evaluation
58.3%
Better than 73% of models compared
CritPt
Research-level physics reasoning
2.8%
Coding
SciCode
Python programming for scientific computing
45.7%
Better than 90% of models compared
Terminal-Bench Hard
Agentic coding and terminal use
48.5%
Better than 96% of models compared
Knowledge
AA-Omniscience Accuracy
Proportion of correctly answered questions
45.8%
AA-Omniscience Hallucination Rate
Rate of incorrect answers among non-correct responses
80.1%
Last updated Jun 28, 2026
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