Phi-4-reasoning

Phi-4-reasoning

Microsoft
+
+

Related Products

  • Google AI Studio
    30 Ratings
    Visit Website
  • Gemini Enterprise Agent Platform
    999 Ratings
    Visit Website
  • LTX
    182 Ratings
    Visit Website
  • LM-Kit.NET
    29 Ratings
    Visit Website
  • Runpod
    230 Ratings
    Visit Website
  • StackAI
    53 Ratings
    Visit Website
  • Checksum.ai
    1 Rating
    Visit Website
  • Pipedrive
    10,520 Ratings
    Visit Website
  • Teradata VantageCloud
    1,124 Ratings
    Visit Website
  • Creatio
    586 Ratings
    Visit Website

About

Fastino is an applied AI platform focused on specialized, open-weight language models and the Fastino Fine-Tuning Agent. The agent lets users describe a task in plain language, then automatically selects the architecture, generates training data, trains and evaluates the model, and returns a task-specific model ready to deploy. Fine-tuning projects can be created and revisited from one interface, with models trained on the user’s terms and deployable in their own environment. The resulting models are designed for production-grade performance, with typical response times under 50 ms, while model weights remain private and owned by the user. Models can move from a task description to a trained result in hours, giving teams a faster path to specialized deployment. Fastino also provides open-source and open-weight models for specialized AI workloads.

About

Phi-4-reasoning is a 14-billion parameter transformer-based language model optimized for complex reasoning tasks, including math, coding, algorithmic problem solving, and planning. Trained via supervised fine-tuning of Phi-4 on carefully curated "teachable" prompts and reasoning demonstrations generated using o3-mini, it generates detailed reasoning chains that effectively leverage inference-time compute. Phi-4-reasoning incorporates outcome-based reinforcement learning to produce longer reasoning traces. It outperforms significantly larger open-weight models such as DeepSeek-R1-Distill-Llama-70B and approaches the performance levels of the full DeepSeek-R1 model across a wide range of reasoning tasks. Phi-4-reasoning is designed for environments with constrained computing or latency. Fine-tuned with synthetic data generated by DeepSeek-R1, it provides high-quality, step-by-step problem solving.

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

AI developers, data scientists, and engineering teams wanting to create, fine-tune, deploy, and control specialized open-weight models for production AI workflows

Audience

Educators and developers seeking an AI tool offering models for complex reasoning tasks

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

No information available.
Free Version
Free Trial

Pricing

No information available.
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

Fastino
Founded: 2026
United States
fastino.ai/

Company Information

Microsoft
Founded: 1975
United States
azure.microsoft.com/en-us/blog/one-year-of-phi-small-language-models-making-big-leaps-in-ai/

Alternatives

Inkling

Inkling

Thinking Machines Lab

Alternatives

Tinker

Tinker

Thinking Machines Lab
Open R1

Open R1

Open R1
Qwen3.8-27B

Qwen3.8-27B

Alibaba
DeepSeek R1

DeepSeek R1

DeepSeek

Categories

Categories

Integrations

Hugging Face
Microsoft Azure
Microsoft Foundry
Microsoft Foundry Models

Integrations

Hugging Face
Microsoft Azure
Microsoft Foundry
Microsoft Foundry Models
Claim Fastino and update features and information
Claim Fastino and update features and information
Claim Phi-4-reasoning and update features and information
Claim Phi-4-reasoning and update features and information