# Batch Translation

Translate multiple segments at once with AI.

### Starting Batch Translation

1. **Select segments** to translate:
   * Click first segment, Shift+click last for a range
   * Or use **Edit → Select All** (`Ctrl+A`)
2. **Start batch**:
   * Press `Ctrl+Shift+T`
   * Or go to **Edit → Batch Translate**

### Batch Dialog Options

#### Provider Selection

Choose your LLM provider:

* OpenAI (GPT-5.5, GPT-5.4 Mini)
* Anthropic (Claude Sonnet 4.6, Claude Haiku 4.5, Claude Opus 4.7)
* Google (Gemini 3.1 Flash-Lite, Gemini 2.5 Pro, Gemini 3.1 Pro)
* Mistral, DeepSeek
* Ollama (local models)

#### Translation Mode

| Mode             | Description                                 |
| ---------------- | ------------------------------------------- |
| **LLM Only**     | Use AI for all segments                     |
| **TM First**     | Use TM matches above threshold, AI for rest |
| **TM + Context** | Include TM matches as context for AI        |

#### Options

* **Skip confirmed segments**: Don't re-translate ✅ segments
* **Include context**: Send surrounding segments for better quality
* **Retry until complete**: Auto-retry segments that return empty

### Progress Tracking

During translation:

* Progress bar shows completion
* Per-segment status updates
* Can cancel anytime

### Retry Feature

Enable **"🔄 Retry until all segments are translated"** to:

* Automatically detect empty translations
* Retry failed segments (up to 5 passes)
* Ensure all segments get translated

### Tips

#### Optimal Batch Size

* 50-100 segments per batch works well
* Very large batches may timeout
* Split by page if needed

#### Quality vs Speed

* Claude Sonnet 4.6: Good all-round balance of speed and quality
* GPT-5.5 / Claude Opus 4.7: Highest quality, slower and more expensive
* GPT-5.4 Mini / Gemini 3.1 Flash-Lite: Fastest, lower cost

#### Post-Edit Strategy

After batch translation:

1. Review each segment
2. Fix any obvious errors
3. Confirm with `Ctrl+Enter`

***

### See Also

* [AI Translation Overview](/help/ai-translation/overview.md)
* [Creating Prompts](/help/ai-translation/prompts.md)
* [Single Segment Translation](/help/ai-translation/single-segment.md)


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