Accurate swipe typing prediction for any device
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Tracked since2026
The Bottom Line
Entry price
Free, no paid tier
Biggest pro
Achieves high prediction accuracy with a low error rate.
Biggest con
The highly accurate Decoder model is currently only available for QWERTY English.
TL;DR - FUTO Swipe
- Open-source swipe typing prediction system with high accuracy.
- Utilizes a compact three-model architecture for efficient performance on low-end devices.
- Includes a C++ library for easy integration of swipe-to-word prediction.
Pricing: Free forever
Best for: Individuals & startups
What is FUTO Swipe?
FUTO Swipe is an advanced, open-source swipe typing prediction system designed for efficiency and accuracy, even on low-end devices. It leverages a unique three-model architecture: an Encoder for universal, layout-agnostic predictions; a Context Language Model (ContextLM) to refine predictions based on sentence context; and a Decoder for language- and layout-specific accuracy. This system was developed using a large dataset of over 1 million QWERTY English swipes, which is also publicly available. The core of FUTO Swipe's functionality is its ability to convert swipe paths into accurate word predictions with minimal computational overhead. The models are compact, ensuring fast performance and low environmental impact during training. The system is complemented by a C++ library, `swipe-library`, which handles the entire inference process, including decoding and beam search, making it easy for developers to integrate swipe-to-word prediction capabilities into their applications.
Pros & Cons
Pros
- Achieves high prediction accuracy with a low error rate.
- Designed for efficient operation on resource-constrained devices.
- Open-source models and data promote transparency and community development.
- Provides a dedicated C++ library for straightforward integration.
Cons
- The highly accurate Decoder model is currently only available for QWERTY English.
- Requires integration of the `swipe-library` for full functionality.
Key Features
Three-model prediction architecture (Encoder, ContextLM, Decoder)Universal layout-agnostic and language-agnostic Encoder modelContext-aware prediction refinement with ContextLMLanguage- and layout-specific Decoder for high accuracyLow parameter count for efficient execution on low-end devicesC++ inference library (`swipe-library`) for decoding and beam searchPublicly available dataset of over 1 million QWERTY English swipesLow environmental cost for model training
Pricing Plans
Pricing checked Sep 10, 2026
FUTO Keyboard + models
Free
- Use in FUTO Keyboard v0.1.29+
- 1M swipe dataset MIT on Hugging Face
- Models: FUTO Model License; library GPL
Is FUTO Swipe worth the price?
86/100
FUTO Swipe is $0.
Official: swipe typing in FUTO Keyboard (offline Android), or download the models. 1 million swipe dataset is MIT on Hugging Face.
Models use the FUTO Model License with attribution. Inference library is GPL.
On-device in production. This is best for someone who wants swipe without sending keystrokes to a cloud keyboard.
Hidden Costs & Gotchas
Library is GPL. Models are a separate license. Read both before you ship a closed app.
QWERTY English decoder is the only layout-specific decoder they list.
Reviews
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FUTO Swipe FAQ
How does FUTO Swipe achieve accurate predictions across different devices?
FUTO Swipe uses a three-model architecture, including an Encoder for universal predictions and a Context Language Model to refine them based on sentence context. This design allows for efficient and accurate operation, even on devices with limited resources.
Which teams would benefit most from integrating FUTO Swipe?
Developer teams looking to add swipe-to-word prediction capabilities to their applications would benefit from FUTO Swipe. Its dedicated C++ library,
swipe-library, simplifies the integration process for developers.What kind of data was used to develop FUTO Swipe's prediction system?
FUTO Swipe was developed using a large dataset comprising over 1 million QWERTY English swipes. This dataset is also publicly available, promoting transparency and community development.
Does FUTO Swipe include a free tier?
FUTO Swipe is entirely free to use, with no paid plans required. Its open-source models and data further support accessibility and community contributions.
How does FUTO Swipe support developers in integrating its functionality?
FUTO Swipe provides a C++ library,
swipe-library, which handles the entire inference process, including decoding and beam search. This library makes it straightforward for developers to integrate swipe-to-word prediction into their applications.How does FUTO Swipe maintain efficiency and a low environmental impact?
FUTO Swipe's models are designed to be compact, ensuring fast performance and low computational overhead. This efficiency also contributes to a low environmental impact during the training process.
Source: swipe.futo.tech