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README.md
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# Leanstral 119B A6B
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Leanstral is the firsd open-source code agent designed for Lean4, a proof assistant capable to express complex mathematical objects such as [perfectoid spaces](https://xenaproject.wordpress.com/2020/12/05/liquid-tensor-experiment/) and software specifications like [properties of Rust fragments](https://github.com/AeneasVerif/aeneas)
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Built as par of the Mistral Small 4 family, it has multimodal capabilities, efficient architecture it is both formant and cost-efficient against existing closed-source competitors.
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For more information about the model and its scope, please read the related [blog post]()
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## Key Features
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Leanstral consists of the following architectural choices:
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- MoE: 128 experts and 4 active.
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- 119B with 6.5B activated parameters per token.
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- 256k Context Length.
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- Multimodal Input: Accepts both text and image input, with text output.
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Leanstral offers the following capabilities:
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- **Proof Agentic**: Leanstral is specifically design to perform proof engineer scenarios.
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- **Vision**: Enables the model to analyze images and provide insights based on visual content, in addition to text.
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- **Multilingual**: Supports dozens of languages, including English, French, Spanish, German, Italian, Portuguese, Dutch, Chinese, Japanese, Korean, Arabic.
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- **System Prompt**: Maintains strong adherence and support for system prompts.
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- **Speed-Optimized**: Delivers best-in-class performance and speed.
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- **Apache 2.0 License**: Open-source license allowing usage and modification for both commercial and non-commercial purposes.
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- **Large Context Window**: Supports a 256k context window.
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### Examples
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## Usage
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