Grok 3
Grok 3 is a text generation model from X.ai with a 131,072-token context window, released in February 2025.
X.aiLarge-scale text generation from xAI
Grok 3 is a large language model developed by X.ai, the AI division associated with xAI, and was released in February 2025. It is designed for text generation tasks and supports a context window of 131,072 tokens, allowing it to process and respond to lengthy inputs within a single session. The model is identified by the ID grok-3-latest, which tracks the most current version of Grok 3 as updates are released.
Grok 3 is suited for tasks that benefit from a large context window, such as summarizing long documents, multi-turn conversations, and extended drafting or analysis workflows. Its maximum response size is 8,192 tokens per output. The model is available as a first-party offering, meaning it is served directly through X.ai's own infrastructure rather than through a third-party provider.
What Grok 3 supports
Long Context Window
Processes up to 131,072 tokens in a single session, enabling analysis of lengthy documents or extended conversations without truncation.
Text Generation
Generates coherent text responses across a wide range of prompts, with a maximum response size of 8,192 tokens per output.
Multi-turn Conversation
Supports extended back-and-forth dialogue, retaining context across many turns within the 131,072-token limit.
Reasoning and Analysis
Handles complex reasoning tasks such as logical inference, structured analysis, and multi-step problem solving within a single prompt.
Code Generation
Produces and explains code across common programming languages, supporting tasks like debugging, refactoring, and implementation from natural language descriptions.
Document Summarization
Condenses long documents into structured summaries, taking advantage of the 131,072-token context to handle full-length reports or articles in one pass.
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Get Started FreeBenchmark scores
Scores represent accuracy — the percentage of questions answered correctly on each test.
| Benchmark | What it tests | Score |
|---|---|---|
| MMLU-Pro | Expert knowledge across 14 academic disciplines | 79.9% |
| GPQA Diamond | PhD-level science questions (biology, physics, chemistry) | 69.3% |
| MATH-500 | Undergraduate and competition-level math problems | 87.0% |
| AIME 2024 | American math olympiad problems | 33.0% |
| LiveCodeBench | Real-world coding tasks from recent competitions | 42.5% |
| HLE | Questions that challenge frontier models across many domains | 5.1% |
| SciCode | Scientific research coding and numerical methods | 36.8% |
Common questions about Grok 3
What is the context window size for Grok 3?
Grok 3 supports a context window of 131,072 tokens, meaning it can process up to that many tokens of combined input and conversation history in a single session.
What is the maximum response length Grok 3 can produce?
The maximum response size for Grok 3 is 8,192 tokens per output generation.
Who developed Grok 3 and when was it released?
Grok 3 was developed by X.ai (xAI) and released in February 2025.
What model ID should I use to access Grok 3?
The model is available under the ID grok-3-latest, which points to the most current version of Grok 3.
Does Grok 3 support image or video inputs?
Based on the available metadata, Grok 3 is classified as a text generation model. Image and video analysis support are not confirmed in the current metadata.
What is the pricing for Grok 3?
Pricing information for Grok 3 is not included in the current metadata. Check X.ai's official documentation or MindStudio's pricing page for the latest details.
What people think about Grok 3
Community discussion around Grok 3 on Reddit reflects interest in xAI's rapid development pace, with users noting that Grok 3 arrived roughly five months after Grok 2 and that a Grok 4 is already anticipated. Some threads highlight the speed of xAI's release cadence as a notable characteristic of the company.
A significant portion of community discussion centers on concerns about potential changes to future model versions, including debates about training data manipulation and ideological alignment. Discussions about Grok 3 itself are often framed in the context of what comes next, with an xAI engineer's comments about Grok 4 generating considerable engagement.
Elon is working on Grok 3.5 and will push xAI towards removing "leftist indoctrination" from the model. This can be accomplished by either significantly manipulating the training data and messing with Grok's ontology (the exact things AI doomers were/are worried about)
xAI Engineer: "Grok 4 is coming, and its going to be a bigger jump from grok 3 than grok 3 was from 2."
Grok 2 launched ~11 months ago (Aug 14, 2024), Grok 3 ~5 months ago (Feb 17, 2025) and now Grok 4, xAI does makes everyone else seem very slow
Documentation & links
Parameters & options
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