Nex-N2.5 Max

Name: Nex-N2.5 Max
Author: Nex AGI

Nex AGIOpen WeightsPending Human Review

Nex-N2.5 Max is a separately positioned tier in Nex AGI’s September 2026 agentic family. The Max tier is Nex AGI’s first trillion-parameter-scale post-training effort. Unlike mini and Pro, its 1.6T-parameter foundation is text-only, emphasizing coding, tool execution, scientific research, and complex productivity tasks. Adaptive thinking can produce direct answers or reasoning traces, with controllable reasoning effort. Apache-licensed downloadable weights and compatible serving examples are published. The official repository establishes the released family but does not date its first public availability precisely, so month precision is preserved. Agent evaluation results reflect the model together with tools, context management, and execution budgets.

2026-09

1.6T

Mixture-of-Experts Transformer

Apache-2.0

Compare with other models

Specifications

Parameters: 1.6T
Architecture: Mixture-of-Experts Transformer
License: Apache-2.0
Context Window: 262,144 tokens
Type: text
Modalities: text

Benchmark Scores

Advanced Specifications

Model Family: Nex
API Access: Not Available
Chat Interface: Not Available
Variants: Nex-N2.5-Max

Capabilities & Limitations

Capabilities: agentic reasoningcodingtool useresearch
Known Limitations: Requires compatible reasoning and tool-call parsersLarge total weights drive memory requirements despite sparse inferenceLong workflows may repeat mistakes or fail to satisfy constraints
Notable Use Cases: long-running task agentsrepository maintenanceproductivity workflow research
Function Calling Support: Yes
Tool Use Support: Yes

Resources

Related Models

Ember-1

Fireworks AI

Ember-1 is Fireworks AI’s specialized Kimi K3-derived reasoning model, offered through its serverless API and playground. The 2.78T-parameter mixture-of-experts model supports image inputs, function calling, and a context advertised as 1040K tokens. It is optimized for shorter reasoning traces: the publisher reports roughly 40% fewer generated tokens with comparable results on its own evaluations. This is a provider evaluation claim rather than a guarantee of latency or quality in every agent workload. Ember-1’s September 23 launch establishes public availability, while the catalog’s September 22 creation timestamp is earlier metadata. Public model weights are not offered.

Typemultimodal

Parameters2.78T total

2026-09-23

Proprietary

Details Compare

Nex-N2.5 mini

Nex AGI

Nex-N2.5 mini is a separately positioned tier in Nex AGI’s September 2026 agentic family. The mini tier preserves multimodal understanding while focusing on responsive computer use, web browsing, and visually grounded actions. It provides a smaller weight footprint than Pro and Max. Adaptive thinking can produce direct answers or reasoning traces, with controllable reasoning effort. Apache-licensed downloadable weights and compatible serving examples are published. The official repository establishes the released family but does not date its first public availability precisely, so month precision is preserved. Agent evaluation results reflect the model together with tools, context management, and execution budgets.

Nex-N2.5 Pro

Nex AGI

Nex-N2.5 Pro is a separately positioned tier in Nex AGI’s September 2026 agentic family. The Pro tier strengthens multimodal long-horizon tasks, including computer use, web browsing, coding, and knowledge work. Its large mixture-of-experts checkpoint targets greater capability at higher serving cost. Adaptive thinking can produce direct answers or reasoning traces, with controllable reasoning effort. Apache-licensed downloadable weights and compatible serving examples are published. The official repository establishes the released family but does not date its first public availability precisely, so month precision is preserved. Agent evaluation results reflect the model together with tools, context management, and execution budgets.