Nex-N2-Pro

Available

Nex AGIOpen source

Nex AGI's open-weight agentic flagship, post-trained on Qwen3.5-397B-A17B (397B total / ~17B active MoE) by the Shanghai Innovation Institute-led Nex alliance. Built around an "Agentic Thinking" framework for long-horizon coding, deep research, tool calling, and terminal execution; accepts text and image input and emits text with explicit reasoning traces and function calling. Apache-2.0, ~262K context. Nex reports parity with GPT-5.5 and Claude Opus 4.7 on several agentic and coding evals. A smaller Nex-N2-mini (35B/3B-active) was announced but is not yet open-sourced.

Official page ↗Model card ↗

Specifications

License: Open source · Apache-2.0
Weights: Downloadable
Architecture: Mixture-of-Experts
Parameters: 397B · 17B active
Context window: 262K tokens
Max output: —
Knowledge cutoff: —
Price (in / out, $/M): —
Modalities: TextVisionCode

Benchmarks

Terminal-Bench 2.0self-reported

75.3%

source ↗

SWE-bench Proself-reported

58.8%

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SWE-bench Verifiedself-reported

80.8%

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GPQA Diamondself-reported

90.7%

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Vendor-reported figures are claims until independently verified. See methodology.