Comparing Grok 4.5 and ChatGPT 5.6 Sol: Which tool is better?

Grok 4.5 and ChatGPT 5.6 Sol are two AI tools that many people are extremely interested in, with programming capabilities, autonomous agents (agentic) and real-time data, to make optimal choices for the job. Grok 4.5 stands out with its ability to handle topical questions, natural conversations and flexible response styles, while ChatGPT 5.6 Sol focuses on inference, in-depth analysis and support for diverse tasks.

Both of these tools, focus on answer quality, inference ability, processing speed, accuracy, tool support, and usage experience to determine the right model for each need. To better understand these two tools, Download.com.vn will introduce to everyone the article Comparing Grok 4.5 and ChatGPT 5.6 Sol: Which tool is better?we invite you to consult.

Detailed table comparing Grok 4.5 and ChatGPT 5.6 Sol

What is Grok 4.5? Outstanding features of Grok 4.5

Grok 4.5 is the exclusive reasoning mixture-of-experts model of SpaceXAI, the company most users still know as xAI. The model targets three main areas: coding, agent tasks, and general office work.

This tool, will have a context window of 500,000 tokens, adjustable reasoning effort level at three levels low, medium, high (default is high), and knowledge cutoff as of February 1, 2026. The model takes text and image input and returns text. It cannot create images directly because SpaceXAI uses its own image model for that.

Advantage:

• Optimal real-time data: Supports analysis of events, news or market trends that have just happened in a short time.
• Sharp Math and Logical Thinking: Achieve high scores in tests of theoretical mathematics, game theory, and algorithm optimization.
• Experience direct feedback: Be less constrained by excessive safety filters, providing direct answers to complex or controversial topics.
• Deep integration with X: Supports discussion summaries and crowd sentiment analysis (Sentiment Analysis) on social networks.

What is ChatGPT 5.6 Sol? Outstanding features of ChatGPT 5.6 Sol

GPT-5.6 is the next generation of OpenAI’s foundation model, available simultaneously on ChatGPT, the Codex programming tool and OpenAI API from July 9, 2026. OpenAI split GPT-5.6 into three variants that serve three distinct needs. Sol is the flagship model for complex tasks, Terra balances capacity, speed and cost for everyday work, and Luna is the fastest and most economical option in the family.

GPT-5.6 is rolling out globally in waves, gradually expanding within the first 24 hours of launch and will reach general availability in the coming weeks. If you don’t see the pattern appear right away, check back in a short time. For programmers and businesses, GPT-5.6 can be called directly via the OpenAI API or used in the Codex programming tool. When integrating, a reasonable strategy is to start with Luna for simple and repetitive tasks, move to Terra for day-to-day work that requires more precision, and only use Sol for truly complex problems such as network security analysis or in-depth research.

Advantage:

• Goal Mode: Given a specific goal (for example: “Find billing errors in this project, create a separate Git branch to fix and run tests”), ChatGPT 5.6 Sol can self-divide work, execute and report results.
• Computer Use and Appshots: Interact with the computer screen via Appshots shortcuts, support cursor control, browser or emulator for product testing.
• Sub-agents and Worktree ecosystem: Open multiple sub-agents running in parallel on independent Git branches, helping to handle a series of errors at the same time without affecting the main code source.
• 1-Click Deployment (Sites): Turn an idea or source code into a complete internal application with built-in database and user authentication.