Compatibility alias that routes to GPT 6 Astra, the newest GPT flagship for complex reasoning, coding, and agentic workflows.
Added Mar 29, 2026
Context Window
1.1M
Max Output
128.0K
Avg output tokens (7d)
497 tokens
Input Price (Auto)
$10.00/1M
Output Price (Auto)
$50.00/1M
Cache Read (Auto)
$1.00/1M
Capabilities
Benchmarks
Benchmarks
Performance metrics and benchmarks
Sourced from Artificial Analysis.
Intelligence Index
54.7
Coding Index
76.9
Agentic Index
51.6
Reasoning
GPQA Diamond
Graduate-level scientific reasoning
96.1%
Better than 99% of models compared
HLE
Humanity's Last Exam
54.7%
Better than 99% of models compared
AA-LCR
Long context reasoning evaluation
80.7%
Better than 92% of models compared
GDPval-AA
Economically valuable tasks
54.2%
CritPt
Research-level physics reasoning
31.7%
Coding
SciCode
Python programming for scientific computing
56.5%
Better than 83% of models compared
Knowledge
AA-Omniscience Accuracy
Proportion of correctly answered questions
62.6%
AA-Omniscience Hallucination Rate
Rate of incorrect answers among non-correct responses
51.3%
Last updated Sep 7, 2026
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