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
Avg output tokens (7d)
394 tokens
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
29.9
Coding Index
39.3
Agentic Index
13.4
Agentic work
AutomationBench-AA
Workflow automation with guardrail penalties
40.5%
Better than 58% of models compared
AA-Briefcase
Agentic knowledge work (Elo)
1099 Elo
Better than 57% of models compared
GDPval-AA v2
Economically valuable tasks (Elo)
1262 Elo
Better than 66% of models compared
Document reasoning
GDP.pdf
Professional PDF reasoning: all-pass rate
13.8%
Better than 54% of models compared
AA-LCR v1.1
Long context reasoning with updated grading
78.3%
Better than 81% of models compared
Reasoning
HLE
Humanity's Last Exam
28.3%
Better than 76% of models compared
CritPt
Research-level physics reasoning
0.3%
Coding
Terminal-Bench v4.0
Practical coding and terminal tasks
2.5%
Better than 51% of models compared
SciCode
Python programming for scientific computing
50.9%
Better than 58% of models compared
Knowledge
AA-Omniscience Accuracy
Proportion of correctly answered questions
28.6%
AA-Omniscience Hallucination Rate
Rate of incorrect answers among non-correct responses
75.0%
Legacy benchmarks
GPQA Diamond (legacy)
Graduate-level scientific reasoning
64.5%
Better than 40% of models compared
AA-LCR (unversioned / legacy)
Long context reasoning evaluation
78.3%
Better than 81% of models compared
GDPval-AA (unversioned / legacy)
Economically valuable tasks
20.3%
Last updated Oct 2, 2026
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