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What is Solar Pro 4?

Solar Pro 4 is a sophisticated AI model crafted to handle practical tasks such as analyzing documents, executing commands, and generating deliverables, halting its operations when evidence is lacking. This model excels in managing large and complex workloads that involve multiple documents, executing terminal commands, and orchestrating several tool interactions across various steps. With an impressive 512K context window and the ability to produce up to 128K output tokens, it allows users to integrate contracts, reports, and data files into one cohesive workflow without splitting them apart. It supports input and output in English, Korean, and Japanese, giving users the option to tailor the reasoning depth for either detailed analysis or quick, real-time responses. Solar Pro 4 is designed for accuracy, ensuring that it delivers consistent values and conclusions across lengthy documents, multi-step tool applications, and terminal operations, including various deliverables like Excel files, detailed reports, and presentation slides. In addition, its architecture promotes teamwork by enabling multiple users to collaborate on different components of a project simultaneously, significantly boosting overall productivity and efficiency. This innovative model redefines how teams approach complex tasks, making it an invaluable asset in diverse working environments.

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.

Media

Media

Integrations Supported

Hermes Agent
C#
Cheaper Inference
Cosmos
Dart
Go
Grok Bot
Grok Imagine Image 2.0
Microsoft Excel
Objective-C
OpenAI
OpenTag
PowerShell
Python
R
Rust
SQL
Solidity
Swift
YAML

Integrations Supported

Hermes Agent
C#
Cheaper Inference
Cosmos
Dart
Go
Grok Bot
Grok Imagine Image 2.0
Microsoft Excel
Objective-C
OpenAI
OpenTag
PowerShell
Python
R
Rust
SQL
Solidity
Swift
YAML

API Availability

Has API

API Availability

Has API

Pricing Information

$0.03 per 1M tokens
Free Version
Free Trial Offered?

Pricing Information

$2 per million input tokens
$2 per million input tokens and $6 per million output tokens
Free Version
Free Trial Offered?

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Upstage

Date Founded

2020

Company Location

United States

Company Website

www.upstage.ai/blog/en/solar-pro-4

Company Facts

Organization Name

SpaceXAI

Date Founded

2023

Company Location

United States

Company Website

grok.com

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