Compatibility alias that routes to GPT 5.6 Luna, the latest supported GPT Luna model.
Added Sep 11, 2026
Context Window
1.1M
Max Output
128.0K
Input Price (Auto)
$0.20/1M
Output Price (Auto)
$1.20/1M
Cache Read (Auto)
$0.020/1M
Capabilities
Benchmarks
Benchmarks
Performance metrics and benchmarks
Sourced from Artificial Analysis.
Intelligence Index
37.5
Coding Index
71.4
Agentic Index
42.7
Agentic work
AutomationBench-AA
Workflow automation with guardrail penalties
50.2%
Better than 72% of models compared
AutomationBench-AA Tasks Completed
Fully completed workflows without guardrail violations
18.6%
Better than 30% of models compared
AA-Briefcase
Agentic knowledge work (Elo)
1339 Elo
Better than 78% of models compared
GDPval-AA v2
Economically valuable tasks (Elo)
1489 Elo
Better than 85% of models compared
Document reasoning
GDP.pdf
Professional PDF reasoning: all-pass rate
24.0%
Better than 87% of models compared
AA-LCR v1.1
Long context reasoning with updated grading
83.7%
Better than 98% of models compared
Reasoning
HLE
Humanity's Last Exam
39.5%
Better than 90% of models compared
CritPt
Research-level physics reasoning
20.6%
Coding
Terminal-Bench v4.0
Practical coding and terminal tasks
11.6%
Better than 70% of models compared
SciCode
Python programming for scientific computing
53.6%
Better than 73% of models compared
Knowledge
AA-Omniscience Accuracy
Proportion of correctly answered questions
42.7%
AA-Omniscience Hallucination Rate
Rate of incorrect answers among non-correct responses
92.6%
Legacy benchmarks
GPQA Diamond (legacy)
Graduate-level scientific reasoning
91.1%
Better than 92% of models compared
AA-LCR (unversioned / legacy)
Long context reasoning evaluation
83.7%
Better than 98% of models compared
GDPval-AA (unversioned / legacy)
Economically valuable tasks
49.5%
Last updated Sep 11, 2026
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