Claude Sonnet 4

Claude Sonnet 4

Anthropic
KAT-Coder-Pro V2

KAT-Coder-Pro V2

StreamLake
+
+

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About

Claude Sonnet 4, the latest evolution of Anthropic’s language models, offers a significant upgrade in coding, reasoning, and performance. Designed for diverse use cases, Sonnet 4 builds upon the success of its predecessor, Claude Sonnet 3.7, delivering more precise responses and better task execution. With a state-of-the-art 72.7% performance on the SWE-bench, it stands out in agentic scenarios, offering enhanced steerability and clear reasoning capabilities. Whether handling software development, multi-feature app creation, or complex problem-solving, Claude Sonnet 4 ensures higher code quality, reduced errors, and a smoother development process.

About

KAT-Coder is an agentic AI coding system designed to go beyond traditional autocomplete tools by enabling end-to-end software development workflows driven by reasoning, planning, and execution. It is positioned as a flagship coding model within the KAT ecosystem, built specifically for “agentic coding,” where the model does not just generate snippets but can diagnose issues, propose fixes, run tests, and iterate across multiple files as part of a continuous development loop. It integrates directly with developer environments through API endpoints and proxy layers compatible with tools like Claude Code, allowing seamless use inside existing IDE workflows without changing the interface developers are already familiar with. KAT-Coder is trained using a multi-stage pipeline that includes supervised fine-tuning and large-scale reinforcement learning, enabling it to understand programming context, and reason over complex tasks.

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

Developers, software engineers, and businesses looking for a high-performance AI model to enhance coding efficiency, improve problem-solving, and optimize development processes

Audience

Software developers and engineering teams who need an AI agent capable of handling end-to-end coding tasks, from debugging and refactoring to multi-file implementation within real development environments

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

$3 / 1 million tokens (input)
Free Version
Free Trial

Pricing

$0.30 per month
Free Version
Free Trial

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

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:

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Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Anthropic
Founded: 2021
United States
claude.ai

Company Information

StreamLake
United States
www.streamlake.ai/product/kat-coder

Alternatives

Alternatives

Claude Opus 4.1

Claude Opus 4.1

Anthropic
Claude Opus 4

Claude Opus 4

Anthropic
DeepCoder

DeepCoder

Agentica Project
DeepSWE

DeepSWE

Agentica Project

Categories

Categories

Integrations

Claude
Amp
Biela.dev
C#
Clojure
Cursor
DataGrip
Elixir
Go
Java
Microsoft Foundry
NextDocs
PyCharm
RubyMine
Scriptbee
Snowflake
Snowflake Cortex AI
StackAI
Visual Basic
Zo Computer

Integrations

Claude
Amp
Biela.dev
C#
Clojure
Cursor
DataGrip
Elixir
Go
Java
Microsoft Foundry
NextDocs
PyCharm
RubyMine
Scriptbee
Snowflake
Snowflake Cortex AI
StackAI
Visual Basic
Zo Computer
Claim Claude Sonnet 4 and update features and information
Claim Claude Sonnet 4 and update features and information
Claim KAT-Coder-Pro V2 and update features and information
Claim KAT-Coder-Pro V2 and update features and information