Claude Opus 5 Reviews & Ratings

Claude Opus 5

5.0 out of 5 stars
Claude Fable 5.2 Reviews & Ratings

Claude Fable 5.2

5.0 out of 5 stars

Ratings and Reviews 1 Rating

Total 5 out of 5 stars
ease 5 out of 5 stars
features 5 out of 5 stars
design 5 out of 5 stars

Ratings and Reviews 1 Rating

Total 5 out of 5 stars
ease 5 out of 5 stars
features 5 out of 5 stars

Alternatives to Consider

  • Gemini Enterprise Agent Platform Reviews & Ratings
    4.3 out of 5 stars 1,178 Ratings
    Company Website for Gemini Enterprise Agent Platform
  • Jotform Reviews & Ratings
    4.6 out of 5 stars 9,009 Ratings
    Company Website for Jotform
  • Evertune Reviews & Ratings
    5.0 out of 5 stars 1 Rating
    Company Website for Evertune
  • LTX Reviews & Ratings
    4.4 out of 5 stars 182 Ratings
    Company Website for LTX
  • Retool Reviews & Ratings
    4.6 out of 5 stars 608 Ratings
    Company Website for Retool
  • JAMS Scheduler Reviews & Ratings
    4.5 out of 5 stars 285 Ratings
    Company Website for JAMS Scheduler
  • ZenTreasury Reviews & Ratings
    4.9 out of 5 stars 9 Ratings
    Company Website for ZenTreasury
  • Concord Reviews & Ratings
    4.6 out of 5 stars 237 Ratings
    Company Website for Concord
  • Checksum.ai Reviews & Ratings
    5.0 out of 5 stars 2 Ratings
    Company Website for Checksum.ai
  • Fathom Reviews & Ratings
    5.0 out of 5 stars 7,880 Ratings
    Company Website for Fathom

What is Claude Opus 5?

Claude Opus 5 is Anthropic’s advanced Opus model designed for high-value coding, knowledge work, problem-solving, automation, scientific research, and everyday AI workflows. The model is positioned as a thoughtful and proactive system that approaches the frontier intelligence of Claude Fable 5 at half the price. Anthropic says Claude Opus 5 delivers greatly improved performance for the same cost as Opus 4.8, with base pricing of $5 per million input tokens and $25 per million output tokens. The model supports effort settings that allow customers to optimize for deeper intelligence or conserve tokens for faster and cheaper results. Claude Opus 5 performs especially well on software engineering evaluations, including tasks that require debugging, code generation, root-cause analysis, test creation, and multi-step implementation. It also shows strong results on knowledge work, business automation, computer use, novel problem solving, and research-heavy tasks. Anthropic highlights that Opus 5 is better at checking its own work, iterating until it succeeds, and building supporting tools when a task requires it. The model improves on Opus 4.8 across life sciences evaluations, including structural biology, organic chemistry, bioinformatics, molecular structure inference, and protein function tasks. Claude Opus 5 includes alignment and safety protections that aim to allow beneficial cybersecurity and biology use cases while restricting riskier exploit generation, penetration testing, and certain autonomous misuse scenarios. It is available on Claude Max as the default model, on Claude Pro as the strongest model, and through the Claude API as claude-opus-5, with a Fast mode that runs around 2.5 times the default speed.

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

.NET
Amp
Claude Agent SDK
Claw Code
Devin
Doraverse
Flowise
Kubernetes
Lua
Muse
PHP
Perplexity Computer
PyCharm
ReSharper
Ruby
RubyMine
Scalestack
Snowflake Cortex AI
Use AI
Verdent

Integrations Supported

.NET
Amp
Claude Agent SDK
Claw Code
Devin
Doraverse
Flowise
Kubernetes
Lua
Muse
PHP
Perplexity Computer
PyCharm
ReSharper
Ruby
RubyMine
Scalestack
Snowflake Cortex AI
Use AI
Verdent

API Availability

Has API

API Availability

Has API

Pricing Information

$5 per 1M tokens (input)
$5 per million input tokens and $25 per million output tokens

Pricing Information

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

Supported Platforms

SaaS

Supported Platforms

SaaS

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Anthropic

Date Founded

2021

Company Location

United States

Company Website

claude.ai

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

AI Vision Models

Not specified

Foundation Models

Not specified

Large Language Models

Not specified

Multimodal 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

Popular Alternatives

Gemini 4 Argon Reviews & Ratings

Gemini 4 Argon

Google
5.0 out of 5 stars

Popular Alternatives

Claude Sonnet 5.5 Reviews & Ratings

Claude Sonnet 5.5

Anthropic
5.0 out of 5 stars
GPT-6.1 Terra Reviews & Ratings

GPT-6.1 Terra

OpenAI
5.0 out of 5 stars
Claude Fable 5.1 Reviews & Ratings

Claude Fable 5.1

Anthropic
5.0 out of 5 stars
GPT-6.1 Sol Reviews & Ratings

GPT-6.1 Sol

OpenAI
5.0 out of 5 stars
Claude Fable 5.1 Reviews & Ratings

Claude Fable 5.1

Anthropic
5.0 out of 5 stars