Leanstral 1.5

Leanstral 1.5

Mistral AI
ZenCtrl

ZenCtrl

Fotographer AI
+
+

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About

Leanstral 1.5 is an Apache-2.0 licensed model for practical proof engineering in Lean 4, built to make formal verification more powerful and accessible. With 119B total parameters and only 6B active parameters, it delivers a major performance upgrade for theorem proving, agentic proof engineering, and real-world code verification. Leanstral 1.5 was trained through a three-stage process: mid-training, supervised fine-tuning, and reinforcement learning with CISPO. In the multiturn environment, the model receives a theorem statement, submits a proof, gets Lean compiler feedback, and refines its approach until the proof compiles or the budget is exhausted. In the code agent environment, Leanstral works like a developer in a raw filesystem: it edits files, runs bash commands, and uses the Lean language server to inspect goals, errors, and type information in real time.

About

ZenCtrl is an open source AI image generation toolkit developed by Fotographer AI, designed to produce high-quality, multi-view, and diverse-scene outputs from a single image without any training. It enables precise regeneration of objects and subjects from any angle and background, offering real-time element regeneration that provides both stability and flexibility in creative workflows. ZenCtrl allows users to regenerate subjects from any angle, swap backgrounds or clothing with just a click, and start generating results immediately without the need for additional training. By leveraging advanced image processing techniques, it ensures high accuracy without the need for extensive training data. The model's architecture is composed of lightweight sub-models, each fine-tuned on task-specific data to excel at a single job, resulting in a lean system that delivers sharper, more controllable results.

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

Formal methods engineers and Lean 4 researchers who need an open model for theorem proving, proof debugging, and real-world code verification

Audience

Developers wanting a solution for consistent, high-quality image generation

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

Free
Free Version
Free Trial

Pricing

Free
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

Mistral AI
Founded: 2023
France
mistral.ai/news/leanstral-1-5/

Company Information

Fotographer AI
Japan
fotographer.ai/zenctrl

Alternatives

Leanstral

Leanstral

Mistral AI

Alternatives

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SeedEdit 3.0

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SWE-1.5

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Cognition
Seedream 4.5

Seedream 4.5

ByteDance
Command R+

Command R+

Cohere AI

Categories

Categories

Integrations

Baseten
GitHub
Hugging Face

Integrations

Baseten
GitHub
Hugging Face
Claim Leanstral 1.5 and update features and information
Claim Leanstral 1.5 and update features and information
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