Leanstral

Leanstral

Mistral AI
+
+

Related Products

  • Google AI Studio
    30 Ratings
    Visit Website
  • Checksum.ai
    1 Rating
    Visit Website
  • Retool
    584 Ratings
    Visit Website
  • JetBrains Junie
    12 Ratings
    Visit Website
  • LM-Kit.NET
    29 Ratings
    Visit Website
  • Gemini Enterprise Agent Platform
    984 Ratings
    Visit Website
  • Runpod
    220 Ratings
    Visit Website
  • BAND
    3 Ratings
    Visit Website
  • KrakenD
    71 Ratings
    Visit Website
  • TrustInSoft Analyzer
    6 Ratings
    Visit Website

About

Grok Code Fast 1 is a high-speed, economical reasoning model designed specifically for agentic coding workflows. Unlike traditional models that can feel slow in tool-based loops, it delivers near-instant responses, excelling in everyday software development tasks. Built from scratch with a programming-rich corpus and refined on real-world pull requests, it supports languages like TypeScript, Python, Java, Rust, C++, and Go. Developers can use it for everything from zero-to-one project building to precise bug fixes and codebase Q&A. With optimized inference and caching techniques, it achieves impressive responsiveness and a 90%+ cache hit rate when integrated with partners like GitHub Copilot, Cursor, and Cline. Offered at just $0.20 per million input tokens and $1.50 per million output tokens, Grok Code Fast 1 strikes a strong balance between speed, performance, and affordability.

About

Leanstral is an open-source code agent developed by Mistral AI specifically designed to work with the Lean 4 proof assistant. The model focuses on generating code while also formally verifying its correctness against strict mathematical or software specifications. Unlike traditional coding assistants, Leanstral integrates directly with formal proof systems to ensure that generated code satisfies defined logical requirements. Its architecture is optimized for proof engineering tasks and operates efficiently with sparse model parameters. Leanstral is released under the Apache 2.0 license, making it freely accessible for developers, researchers, and organizations to use and customize. The model is designed to operate within real-world formal repositories rather than isolated problem environments. By combining code generation with formal verification, Leanstral aims to reduce the need for manual human review in complex software and mathematical development.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Grok Code Fast 1 is designed for developers, engineering teams, and coding platform providers who need a fast, cost-effective AI model optimized for real-world software development

Audience

AI researchers, software engineers, and developers working with formal verification, proof assistants, and mathematically rigorous software development

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

$0.20 per million input tokens
$0.20 per million input tokens
$1.50 per million output tokens
$0.02 per million cached tokens
Free Version
Free Trial

Pricing

Free
Open source
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

SpaceXAI
Founded: 2023
United States
x.ai

Company Information

Mistral AI
Founded: 2023
France
mistral.ai

Alternatives

JetBrains Junie

JetBrains Junie

JetBrains

Alternatives

GPT-5.5

GPT-5.5

OpenAI
Agent 3

Agent 3

Replit
Claude Opus 4.6

Claude Opus 4.6

Anthropic
Grok 4.5

Grok 4.5

SpaceXAI
Leanstral 1.5

Leanstral 1.5

Mistral AI
DeepSeek-V2

DeepSeek-V2

DeepSeek

Categories

Categories

Integrations

C
Cline
Cursor
Devin Desktop
Grok Build
Java
Kilo Code
Microsoft Foundry Models
Mistral AI
Mistral AI Studio
OpenCode
OpenRouter
PHP
Python
Roo Code
Rust
Shiori
TypeScript
Visual Studio
Visual Studio Code

Integrations

C
Cline
Cursor
Devin Desktop
Grok Build
Java
Kilo Code
Microsoft Foundry Models
Mistral AI
Mistral AI Studio
OpenCode
OpenRouter
PHP
Python
Roo Code
Rust
Shiori
TypeScript
Visual Studio
Visual Studio Code
Claim Grok Code Fast 1 and update features and information
Claim Grok Code Fast 1 and update features and information
Claim Leanstral and update features and information
Claim Leanstral and update features and information