OpenAI's most capable model for the hardest end-to-end work, with state-of-the-art performance in computer use, browsing, software engineering, science, and professional tasks. Astra is designed to carry long, multistep workflows across code, browsers, and professional software through to a finished result.
Added Sep 3, 2026
Context Window
1.1M
Max Output
128.0K
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
61.2
Coding Index
76.9
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
74.3%
Better than 85% of models compared
Coding
SciCode
Python programming for scientific computing
54.1%
Better than 94% of models compared
Last updated Sep 4, 2026
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