# Ising Calibration 1.5 31B

> A 31 billion parameter model from NVIDIA served via NVIDIA NIM, tuned for efficient text generation and reasoning tasks.

**ID**: `nvidia/ising-calibration-1.5-31b`  
**Creator**: nvidia  
**Category**: text  
**Context**: 128K tokens  
**Status**: Disabled — no longer routable or listed; kept for history/usage reference.  
**Input**: $0  
**Output**: $0  
**Released**: 2026-07-24  
**Web page**: https://anyrouter.dev/model/nvidia/ising-calibration-1.5-31b

**Input modalities**: text  
**Output modalities**: text  

**Tokenizer**: Nemotron

**Capabilities**: chat, streaming

**Supported parameters**: max_tokens, temperature, top_p, stop

## 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": "nvidia/ising-calibration-1.5-31b",
  "messages": [
    {
      "role": "user",
      "content": "Say hi in 3 words."
    }
  ]
}'
```

## Providers

| Provider | Input | Output |
| --- | --- | --- |
| nvidia | $0 | $0 |
| nvidia-byok | $0 | $0 |

## Source

- Upstream docs: https://build.nvidia.com/nvidia/ising-calibration-1.5-31b