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Engine

Engine

The Engine tab in Settings picks which AI handles translation and how text is read from the screen. Mirrors the in-app Settings → Engine section. For the catalog of available models and their licenses, see Models.

Pipeline mode

Three pipelines, picked per session:

  • Text — OCR → translate. Lightest, fastest, works on any model.
  • Text+ — OCR plus a structural pass that groups dialogue lines and merges fragmented text before translation. Balanced default, recommended for most games.
  • Image — an optional mode where the vision model reads the screen as an image. Heaviest of the three; best kept for stylized fonts and decorative UI that the OCR-based modes struggle with. Requires a vision-capable LLM.

See Translation for the conceptual differences between modes.

Engine kind & model picker

Engine kind decides what runs translation:

  • Standard (Local LLM) — a large language model running on your GPU. Rich, context-aware translation, supports Image mode.
  • Lightweight (NMT) — a small CPU model for specific language pairs. Minimal VRAM, faster cold start, no Image mode.
  • Playto Cloud — optional translation through Playto's servers instead of your GPU. No model download, free trial included. See Playto Cloud.

Tap Change to open the model picker. The picker shows download size, VRAM requirement, license, and whether the model is currently in use or already installed. Multiple models can coexist on disk; switching between downloaded models is instant.

Engine mode sits next to the kind selector — keep it on Default. Safe Mode forces a conservative profile (ngl=0 / ctx=2048 / no cache / no flash-attention) for when GPU init fails or VRAM is squeezed by another app.

OCR engine & speed

For pipelines that use OCR (Text and Text+), pick the OCR engine:

  • OneOCR — the engine behind the Windows 11 Snipping Tool. Default: it reads game fonts, name plates and stylized text noticeably better. Playto sets it up during the wizard.
  • Windows OCR — built into Windows 10 / 11. Fallback when OneOCR isn't available on your system; no extra download.

Your choice sticks: if Playto has to fall back temporarily, it returns to your preferred engine once it's available again.

OCR Speed trades accuracy for speed by downscaling the captured image before OCR. Auto picks a reasonable default; Normal never downscales; Fast / Faster cap the long edge at 800 / 600 px.