Nex AGI's open-source agentic reasoning model, post-trained on Qwen3.5-397B-A17B. It is built for agentic coding, software engineering, deep research, tool use, and long-horizon tasks with a 256K context window.
Added Jun 4, 2026
Model weightsContext Window
262.1K
Max Output
262.1K
Avg output tokens (7d)
502 tokens
Input Price (Auto)
$0.50/1M
Output Price (Auto)
$2.50/1M
Cache Read (Auto)
$0.25/1M
Capabilities
Benchmarks
Benchmarks
Performance metrics and benchmarks
Sourced from Artificial Analysis.
Coding Index
59.1
Reasoning
GPQA Diamond
Graduate-level scientific reasoning
89.2%
Better than 86% of models compared
HLE
Humanity's Last Exam
33.7%
Better than 85% of models compared
IFBench
Instruction-following benchmark
66.2%
Better than 78% of models compared
T²-Bench Telecom
Conversational AI agents in dual-control scenarios
81.6%
Better than 72% of models compared
AA-LCR
Long context reasoning evaluation
81.7%
Better than 94% of models compared
GDPval-AA
Economically valuable tasks
33.9%
CritPt
Research-level physics reasoning
8.6%
Knowledge
AA-Omniscience Accuracy
Proportion of correctly answered questions
34.8%
AA-Omniscience Hallucination Rate
Rate of incorrect answers among non-correct responses
94.9%
Last updated Sep 5, 2026, 12:00 AM
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