# Nex-N2.5-Mini

> Nex-N2.5-Mini is Nex AGI's smaller agentic coding model (35B total / 3B active MoE), built for high-speed instruction following, real-time tool execution, and visually assisted computer use. Distinct from Nex-N2.5-Pro and the retired Nex-N2-Pro listing. OpenRouter withdrew the :free SKU in September 2026, so the platform free pool is gone and this listing is BYOK-only; both the paid OpenRouter slug and the old :free id resolve here.

**ID**: `nex-agi/nex-n2.5-mini`  
**Creator**: nex-agi  
**Category**: text  
**Context**: 262K tokens  
**Pricing**: BYOK — billed by your provider  
**Released**: 2026-09-08  
**Web page**: https://anyrouter.dev/model/nex-agi/nex-n2.5-mini

**Input modalities**: text, image  
**Output modalities**: text  

**Capabilities**: chat, streaming, function-calling, reasoning, vision, coding, agentic

**Supported parameters**: max_tokens, temperature, top_p, tools, tool_choice, reasoning, response_format

**Aliases**: `nex-agi/nex-n2.5-mini:free`

## Usage

**Endpoint**: `POST https://anyrouter.dev/api/v1/chat/completions`

```bash
curl https://anyrouter.dev/api/v1/chat/completions \
  -H "Authorization: Bearer $ANYROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "nex-agi/nex-n2.5-mini",
  "messages": [
    {
      "role": "user",
      "content": "Say hi in 3 words."
    }
  ]
}'
```

## Providers

| Provider | Input | Output |
| --- | --- | --- |
| openrouter-byok | BYOK — billed by your provider | — |

BYOK routes are billed by your own provider key — AnyRouter charges $0. Rates marked (list) are the provider's published list price.

## Source

- Upstream docs: https://nex-agi.com/