@tanstack/ai/skills/ai-core/adapter-configuration/references/ollama-adapter.md

Core TanStack AI library - Open source AI SDK

# Ollama Adapter Reference

## Package

```
@tanstack/ai-ollama
```

## Adapter Factories

| Factory           | Type      | Description        |
| ----------------- | --------- | ------------------ |
| `ollamaText`      | Text/Chat | Chat completions   |
| `ollamaSummarize` | Summarize | Text summarization |

## Import

```typescript
import { ollamaText } from '@tanstack/ai-ollama'
```

## Key Models (Local)

Ollama runs models locally. The adapter supports a large catalog of models.
Key families include:

| Model Family | Example Names                    | Notes                   |
| ------------ | -------------------------------- | ----------------------- |
| Llama 4      | `llama4`, `llama4:scout`         | Latest Meta models      |
| Llama 3.3    | `llama3.3`, `llama3.3:70b`       | Strong general purpose  |
| Qwen 3       | `qwen3`, `qwen3:32b`             | Reasoning capable       |
| DeepSeek R1  | `deepseek-r1`, `deepseek-r1:70b` | Reasoning focused       |
| Gemma 3      | `gemma3`, `gemma3:27b`           | Google's open model     |
| Phi 4        | `phi4`, `phi4:14b`               | Microsoft's small model |
| Mistral      | `mistral`, `mistral-large`       | Mistral AI models       |

Models must be pulled first: `ollama pull llama3.3`

## Provider-Specific modelOptions

Ollama models use a generic options type. Provider options vary by the
underlying model. The adapter passes options through to the Ollama API.

```typescript
import { chat } from '@tanstack/ai'
import { ollamaText } from '@tanstack/ai-ollama'

const stream = chat({
  adapter: ollamaText('llama3.3'),
  messages,
  temperature: 0.7,
  // Ollama-specific options are limited compared to cloud providers
})
```

## Configuration

```typescript
// With explicit host
const adapter = ollamaText('llama3.3', {
  host: 'http://my-server:11434',
})
```

## Environment Variable

```
OLLAMA_HOST  (default: http://localhost:11434)
```

No API key is needed. Ollama runs locally by default.

## Gotchas

- **System prompts:** Pass system prompts via the `systemPrompts` option in `chat()`.
- Ollama requires models to be downloaded first (`ollama pull <model>`).
  The adapter does not auto-download models.
- The model catalog is very large (60+ model families). Model names follow
  Ollama's naming: `family:variant` (e.g., `llama3.3:70b`).
- Vision models (e.g., `llama3.2-vision`, `llava`, `gemma3`) support
  image input. Text-only models do not.
- No image generation, TTS, or transcription adapters for Ollama.