Grok 4.5 Reviews & Ratings

Grok 4.5

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
support 5 out of 5 stars

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What is Grok 4.5?

Grok 4.5 is an advanced AI model from SpaceXAI built for coding, agentic tasks, engineering workflows, and knowledge work. It is presented as SpaceXAI’s strongest model to date and is designed to perform well on real-world software engineering tasks rather than only short benchmark prompts. The model was trained on datasets spanning coding, science, engineering, and math, with heavy investment in data filtering, deduplication, quality scoring, and domain-focused selection. Its reinforcement learning process focuses on multi-step software engineering, technical problem solving, automated grading, model-based evaluation, and long-running agentic rollouts. Grok 4.5 can work on challenging development tasks across languages and environments, including Rust, C/C++, terminal workflows, debugging, bug fixing, and end-to-end app generation. The model is also capable of building polished applications from a single prompt, such as interactive simulations, modern interfaces, and functional web experiences. In addition to coding, Grok 4.5 supports knowledge work inside Grok Build, including Excel model creation, web research, multi-sheet formulas, PowerPoint slide design, native diagram creation, and Word document drafting. It is designed for speed and efficiency, with fast serving, strong token efficiency, and pricing based on input and output token usage. Developers can access Grok 4.5 through the SpaceXAI API console, Cursor, and Grok Build, making it usable across coding tools, productivity environments, and custom applications. The model is positioned for teams that need intelligent technical execution at a lower cost and with fewer steps than some competing frontier models. By combining engineering-focused training, agentic reasoning, fast inference, office productivity skills, and broad developer access, Grok 4.5 gives users a capable model for building, automating, debugging, researching, and shipping complex work.

What is Claude Mythos 5.2?

Claude Mythos 5.2 is a frontier AI model developed by Anthropic to support advanced cybersecurity research, biomedical discovery, autonomous software engineering, and complex scientific reasoning. The model shares the same underlying architecture as Claude Fable 5.2 but is made available to verified organizations that require access to capabilities restricted by Fable's cybersecurity and biology safeguards. Its cybersecurity research capabilities include analyzing source code, identifying vulnerabilities, investigating software weaknesses, validating security findings, and supporting authorized penetration testing activities. Claude Mythos 5.2 can examine historical software versions to independently rediscover known vulnerabilities, helping researchers evaluate security risks and prioritize remediation efforts. Anthropic reports that the model identified 10.2% more vulnerabilities than Claude Opus 5.5 and 14.4% more than Claude Mythos 5.1 in its internal vulnerability rediscovery evaluations. Its published cybersecurity benchmark results include 76.3% on CyScenarioBench and 89.6% on CVE Rediscovery, reflecting improvements in technical security reasoning and vulnerability identification. In biological research, the model supports protein engineering, computational biology, molecular analysis, and scientific problem-solving, achieving 85.1% on a de novo protein binder design evaluation. The underlying model also demonstrates strong performance in software engineering, mathematics, scientific experimentation, visual reasoning, and agentic workflows that require multiple stages of planning and execution. Anthropic reports that Claude Mythos 5.2 generates output up to 30% faster than Mythos 5.1, with an optional fast mode that increases token generation speed by up to 2.5 times.

Media

Media

Integrations Supported

.NET
Augment Code
C#
CSS
Cheaper Inference
Cursor
HTML
Hermes Agent
Java
Kotlin
OpenClaw
PHP
Python
R
SQL
Scala
Solidity
Swift
XML
YAML

Integrations Supported

.NET
Augment Code
C#
CSS
Cheaper Inference
Cursor
HTML
Hermes Agent
Java
Kotlin
OpenClaw
PHP
Python
R
SQL
Scala
Solidity
Swift
XML
YAML

API Availability

Has API

API Availability

Has API

Pricing Information

$2 per million input tokens
$2 per million input tokens and $6 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

SpaceXSI

Date Founded

2023

Company Location

United States

Company Website

grok.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

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

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