Is there a cost to use Reika?
No. Reika is free and open source under the Apache 2.0 license with no paid tier, hosted service, or license key, and none is planned. There is no commercial edition, support contract or enterprise license to buy.
AI Coding Assistants
A coding agent CLI for local and hosted models
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Open source CLI for writing code with local or hosted AI models, designed to work efficiently with smaller language models.

Reika is a coding agent CLI that works with both local and hosted AI models. It is designed around small local models first, making it careful with context, failing more gracefully, and being transparent when stuck.
The tool includes context discipline to preserve prompt cache for slow local engines, loop breaking to detect and stop repeated reads and runaway reasoning, and checks on the model's work through blind edits, TypeScript typechecking, and plan progress tracking. It offers multiple modes for different jobs: plan before changes, test-and-review procedures, small windows, or just chat.
Reika prioritizes safety by default with dangerous commands still prompting and shell commands running in a kernel sandbox on macOS. It is measured and transparent, with default-on features that have an off switch for A/B runs, and published results on what they did and didn't fix. The tool is free and open source under the Apache 2.0 license.
Pricing model: Open source
No. Reika is free and open source under the Apache 2.0 license with no paid tier, hosted service, or license key, and none is planned. There is no commercial edition, support contract or enterprise license to buy.
Yes. Reika is free and open source under the Apache 2.0 license, which already allows commercial use. There is no commercial edition or license key needed.
Bug reports with steps to reproduce, the model, and inference engine can be submitted via GitHub Issues. To contribute, start with CONTRIBUTING.md which covers setup, conventions and what makes a change easy to accept.
Reika runs on macOS, Linux and Windows.
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Reika has a free listing. The owner can unlock the full profile with a paid launch for $5:
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