What can Grok 3 Do? Functional Details

Grok 3, xAI’s latest flagship model, represents a leap forward in large-language model (LLM) capabilities by combining massive compute resources, advanced reasoning, multimodal inputs, and real-time data access. Launched in mid-February 2025, Grok 3 builds on its predecessors with features designed for developers, enterprises, and end users across X Premium+, SuperGrok, and soon via an enterprise API. This article explores the full spectrum of its abilities and examines the practical, ethical, and competitive implications of its release.

What is Grok 3 and how does it differ from its predecessors?

Expanded computational power

Grok 3 was trained on xAI’s Colossus supercluster, featuring approximately 200,000 NVIDIA H100 GPUs—ten times the compute of Grok 2. This vast hardware investment allows the model to handle more complex reasoning tasks and larger context windows than earlier versions .

Enhanced dataset and training

In addition to standard web-scale text corpora, Grok 3’s training data includes specialized sources such as legal filings and scientific papers. xAI claims that this expanded dataset underpins its superior performance on benchmarks like the American Invitational Mathematics Examination (AIME) and GPQA for PhD-level science problems.

Mini version for low-latency needs

To serve latency-sensitive applications, xAI released Grok 3 Mini—a lightweight variant that sacrifices some accuracy for faster response times. This tier allows developers to choose between peak performance and minimal inference delay.

What new reasoning capabilities does Grok 3 offer?

“Think” mode for transparent reasoning

Grok 3 introduces a “Think” button that reveals a step-by-step breakdown of its inference process. Users can observe how the model chains together logical steps, making its decision-making more interpretable and fostering trust in high-stakes domains.

“Big Brain” mode for complex problem-solving

For tasks requiring intensive compute—such as multi-step mathematical proofs or intricate code generation—it can be toggled into “Big Brain” mode. This allocates additional GPU resources dynamically, ensuring deeper exploration of candidate solutions at the cost of longer inference times.

Integrated code interpreter

Unlike many LLMs that require external tool hookups, it includes a built-in code interpreter. Users can submit code snippets in languages like Python or JavaScript and receive executed outputs, debugged scripts, or translated code blocks, directly within the chat interface.

How does Grok 3 integrate internet and search features?

DeepSearch for web-scale context

DeepSearch is an AI agent that scours the internet and X (formerly Twitter) in real time to assemble comprehensive, up-to-date summaries. When a query demands information beyond its training cutoff, Grok 3 invokes DeepSearch to fetch and distill relevant sources, effectively blurring the line between a search engine and an LLM.

DeeperSearch: enhanced recall and reasoning

In March 2025, xAI upgraded DeepSearch into DeeperSearch, extending its search horizons and embedding additional reasoning layers. This enhancement allows Grok 3 to reconcile conflicting data points, weigh source credibility, and present nuanced perspectives on complex issues.

Trend analysis and real-time sentiment

Grok 3 can analyze live social media sentiment, detect emerging industry trends, and produce actionable insights for marketers, journalists, and analysts. By tapping into X’s firehose of public posts, it can generate reports on consumer attitudes, stock-market chatter, or global event coverage as it unfolds.

What multimodal functionalities are supported?

Image understanding and editing

Grok 3 processes image inputs to answer questions, describe visual scenes, and even perform basic image editing. Users can upload photographs, request modifications—such as background removal or style transformations—and receive edited outputs, positioning Grok 3 as a lightweight alternative to dedicated image-editing tools.

Upcoming voice mode for natural interaction

Elon Musk announced that Grok 3 will soon support a multimodal voice interface. Within weeks of the initial launch, users will be able to converse with Grok 3 verbally, leveraging speech-to-text and text-to-speech pipelines to create a seamless conversational agent across audio and text channels.

How Is Grok 3 Accessible to Users and Developers?

What subscription tiers support Grok 3?

Initially rolled out to X Premium+ and xAI’s SuperGrok subscribers on February 17, 2025, Grok 3 was briefly opened to free users for a limited window . Premium+ now costs USD 40/month (up from USD 22), while SuperGrok offers priority access to reasoning modes and higher throughput.

What API options and pricing are available?

In April 2025, xAI launched its public API for Grok 3, offering two flavors—standard and mini—with reasoning capabilities. Pricing is set at USD 3 per million input tokens and USD 15 per million generated tokens, positioning it competitively against OpenAI’s GPT-4 pricing tiers.

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What Controversies and Limitations Surround Grok 3?

What concerns exist about misinformation and content moderation?

Previous Grok iterations were criticized for occasional offensive outputs and factual errors. Although Grok 3’s reasoning modes aim to self–fact–check, content moderation remains a challenge, particularly when users activate “unfiltered” adult modes.

What ethical considerations arise from adult-oriented modes?

In late February 2025, xAI rolled out several adult ‘modes’—“sexual,” “uncontrolled,” and “argumentative”—that permit explicit language and themes. While touted as privacy–preserving (with ephemeral conversations), critics warn these modes could enable harmful or exploitative content if not rigorously policed.

Conclusion

Grok 3 represents a watershed moment for xAI, marrying unprecedented compute scale with robust reasoning, multimodal understanding, and real-time data access. Its dual reasoning modes and DeepSearch agents showcase a novel approach to AI transparency and freshness of information, while its integration with X lays the groundwork for conversational agents deeply embedded in social media contexts. Nonetheless, benchmarking controversies, pricing shifts, and ethical quandaries—particularly around unfiltered adult modes—underscore the complexities of deploying cutting-edge AI. As xAI prepares to open source earlier models and expand its multimodal horizons, the broader AI community will be watching closely to see whether it can not only compete on metrics but also shape the future of AI–driven interaction.

Use Grok 3 in CometAPI

CometAPI offer a price far lower than the official price to help you integrate  Grok 3 API (model name: grok-3;grok-3-latest;), and you will get $1 in your account after registering and logging in! Welcome to register and experience CometAPI.

To begin, explore the model’s capabilities in the Playground and consult the API guide for detailed instructions. Note that some developers may need to verify their organization before using the model.