Claude Fable 5.2 Reviews & Ratings

Claude Fable 5.2

5.0 out of 5 stars

Ratings and Reviews 1 Rating

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Ratings and Reviews 1 Rating

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What is Nemotron 3.5 Super VL?

NVIDIA Nemotron 3.5 Super VL is an open multimodal artificial intelligence model designed to support specialized autonomous agents, enterprise automation, and complex reasoning tasks. Introduced in October 2026, the model combines language processing, visual understanding, software engineering capabilities, and external tool interactions within a unified architecture. It uses a 120-billion-parameter mixture-of-experts design with approximately 12 billion active parameters per token to optimize inference efficiency. The model was distilled from NVIDIA Nemotron 3 Ultra and incorporates additional training focused on coding, multimodal reasoning, and agentic task execution. Its vision-language capabilities support analysis of images, charts, tables, diagrams, multipage documents, and video content. Document intelligence workflows can extract structured information, interpret visual evidence, connect information across pages, and generate summaries or reports. Software engineering features enable the model to analyze repositories, identify programming errors, test code, and recommend modifications across development workflows. Its agentic capabilities support web research, external tool usage, multistep problem-solving, cybersecurity vulnerability analysis, and enterprise process automation. NVIDIA NeMo provides customization tools for supervised fine-tuning, low-rank adaptation, and reinforcement learning using proprietary datasets, organizational policies, and specialized workflows. The model incorporates LiLiCorr speculative decoding, multi-token prediction, context reuse, and NVFP4 quantization to improve inference performance on compatible hardware. Nemotron 3.5 Super VL is distributed with open weights and supports local, cloud, and data center deployment through NVIDIA infrastructure and tools such as NVIDIA NIM.

What is Claude Fable 5.2?

Claude Fable 5.2 is an advanced frontier AI model developed by Anthropic to support demanding technical work, autonomous software engineering, scientific research, and complex reasoning tasks. The model shares its underlying architecture with Claude Mythos 5.2 but includes additional cybersecurity and biology safeguards that allow Anthropic to provide broader access to its capabilities. Claude Fable 5.2 improves on previous generations through stronger code generation, engineering judgment, mathematical problem-solving, visual interpretation, and execution of long-running agentic workflows. Its software engineering capabilities enable AI agents to analyze large repositories, investigate bugs, implement features, optimize application performance, conduct code reviews, and complete substantial software migrations. The model can coordinate large groups of specialized subagents, delegate simpler tasks to smaller models, and maintain progress across extended development projects requiring multiple stages of planning, implementation, and verification. Anthropic demonstrated these capabilities through experimental projects involving a Python-to-Rust production migration and the creation of a prototype operating system using more than 1,000 coordinated subagents. Scientific and engineering capabilities include mathematical proof development, physics research, electronic circuit design, robotics control, and iterative experimentation using external computational tools. Claude Fable 5.2 achieved benchmark scores of 49.1% on FrontierCode 2.0, 69.9% on FrontierSWE v2, 51.4% on AutomationBench, 74.2% on Humanity's Last Exam with tools, and 73.4% on Chartography. The model supports configurable reasoning effort and produces output up to 30% faster than Fable 5.1, with an optional fast mode that increases token generation speed by up to 2.5 times.

Media

Media

Integrations Supported

Amazon Bedrock
C++
Claude Cowork
Claude Design
Clawd.run
Databricks
Devin
Doraverse
Higgsfield Supercomputer
JavaScript
JetBrains Junie
Julia
Kotlin
Mimasa AI
Model Context Protocol (MCP)
Muse
Oxen.ai
Solidity
TypeScript
Viktor

API Availability

Has API

API Availability

Has API

Pricing Information

$0
The model is available at no charge under the OpenMDW-1.1 license. Hosted inference through third-party providers may have separate charges.
Free Version

Pricing Information

$8 per 1M tokens (input)
$8 per million input tokens and $40 per million output tokens

Supported Platforms

SaaS
On-Prem
Linux

Supported Platforms

SaaS

Customer Service / Support

Not specified

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

NVIDIA

Date Founded

1993

Company Location

United States

Company Website

nvidia.com

Company Facts

Organization Name

Anthropic

Date Founded

2021

Company Location

United States

Company Website

claude.ai

Categories and Features

AI Coding Models

Not specified

AI Models

Not specified

AI Reasoning Models

Not specified

Foundation Models

Not specified

Large Language Models

Not specified

Multimodal Models

Not specified

Open-Weight AI Models

Not specified

Categories and Features

AI Coding Models

Not specified

AI Models

Not specified

AI Reasoning Models

Not specified

AI Vision Models

Not specified

Foundation Models

Not specified

Large Language Models

Not specified

Multimodal Models

Not specified

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