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Description

Claude Fable 5.1 is a frontier AI model from Anthropic built for demanding coding, research, knowledge work, and autonomous multi-step workflows. It delivers higher performance than Claude Fable 5 across benchmarks covering scientific research, terminal-based coding, business automation, computer use, multidisciplinary reasoning, and agentic software development. The model is particularly suited to long-running tasks where it must investigate problems, use tools, maintain context, verify intermediate work, and continue operating with limited supervision. Early evaluations highlighted improvements in areas such as root-cause analysis, code review, browser automation, financial research, document drafting, slide creation, and complex engineering workflows. Fable 5.1 also introduces lower cache-read pricing, which Anthropic says can reduce costs by roughly 25% for typical workloads and considerably more for context-heavy agentic tasks. Enterprise customers can use new privacy-oriented safeguard options that are designed to support zero-data-retention-style deployments while still maintaining misuse protections. Cybersecurity safeguards have also been refined to intervene less often on legitimate defensive work while continuing to restrict higher-risk activities such as exploit generation. Anthropic offers the model through Claude Code, Claude Cowork, Claude.ai, the Claude API, and supported cloud platforms. Claude Fable 5.1 is intended for developers, researchers, enterprises, and professional teams that need strong reasoning and coding performance without relying on Anthropic’s most restricted-access model tier.

Description

KAT-Coder represents a cutting-edge AI coding solution that transcends standard autocomplete functionalities by facilitating comprehensive software development processes that involve reasoning, planning, and execution. This system stands as the premier coding model within the KAT ecosystem, specifically tailored for "agentic coding," which allows the model to not only generate code snippets but also to identify problems, suggest solutions, conduct tests, and refine multiple files in a continuous development cycle. It seamlessly integrates into developer environments via API endpoints and proxy layers that are compatible with tools like Claude Code, ensuring that developers can maintain their familiar workflows without needing to alter their interfaces. KAT-Coder employs a sophisticated multi-stage training pipeline that combines supervised fine-tuning with extensive reinforcement learning, which equips it with the ability to grasp programming contexts and tackle intricate tasks effectively. In this way, KAT-Coder not only enhances productivity but also empowers developers to focus more on innovative aspects of their projects.

API Access

Has API

API Access

Has API

Screenshots View All

Screenshots View All

Integrations

Claude
OpenClaw
AiAssistWorks
App0
Bash
Buda
CSS
Claude Cowork
Claude Science
Claw Code
ClickUp Brain
Cursor
Emergent
HTML
Lua
Microsoft Foundry
Shiori
Sup AI
Visual Basic
YAML

Integrations

Claude
OpenClaw
AiAssistWorks
App0
Bash
Buda
CSS
Claude Cowork
Claude Science
Claw Code
ClickUp Brain
Cursor
Emergent
HTML
Lua
Microsoft Foundry
Shiori
Sup AI
Visual Basic
YAML

Pricing Details

$10 per 1M tokens (input)
$10 per million input tokens and $50 per million output tokens
Free Trial
Free Version

Pricing Details

$0.30 per month
Free Trial
Free Version

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Vendor Details

Company Name

Anthropic

Founded

2021

Country

United States

Website

claude.ai

Vendor Details

Company Name

StreamLake

Country

United States

Website

www.streamlake.ai/product/kat-coder

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