The thinking version of Thinking Machines' 975B-parameter open-weights Mixture-of-Experts generalist with 41B active parameters. It reasons natively over text, images, and audio, and is built for agentic coding, tool use, detailed instruction following, long-context work, and controllable thinking effort.
Added Jul 15, 2026
Model weightsContext Window
1.0M
Max Output
32.8K
Input Price (Auto)
$1.00/1M
Output Price (Auto)
$4.05/1M
Cache Read (Auto)
$0.17/1M
Capabilities
Benchmarks
Benchmarks
Performance metrics and benchmarks
Sourced from Artificial Analysis.
Intelligence Index
42.3
Coding Index
52.1
Agentic Index
34.1
Reasoning
GPQA Diamond
Graduate-level scientific reasoning
87.2%
Better than 86% of models compared
HLE
Humanity's Last Exam
31.9%
Better than 87% of models compared
AA-LCR
Long context reasoning evaluation
73.3%
Better than 87% of models compared
GDPval-AA
Economically valuable tasks
36.8%
CritPt
Research-level physics reasoning
5.4%
Coding
SciCode
Python programming for scientific computing
46.1%
Better than 85% of models compared
Knowledge
AA-Omniscience Accuracy
Proportion of correctly answered questions
41.5%
AA-Omniscience Hallucination Rate
Rate of incorrect answers among non-correct responses
67.7%
Last updated Aug 16, 2026
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