xAI

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Overall Rank#19 AI Native Rank#3

xAI is an artificial intelligence startup founded by Elon Musk, aiming to understand the universe.

Palo Alto, California, United States

🇺🇸

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AI Native

Yes

Number of tools

Number of employees

Profitable

Valuation

$250B

Tools

Rumor

Grok 5

Conversational AI for understanding the universe.

Open

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🇺🇸 United States
Releases in TBD
Free + from $30/mo

14,417
208
4.3
Grok Imagine v1.0

Unleash Your Creativity with Grok Imagine

Image to video

Open

32,840 grok.com

Herbert Kemp

🛠️ 2 tools 🙏 318 karma

Oct 10, 2025

@Grok Imagine

Feels illegal to be this early, quick run with Grok Imagine: great for teaser bits. The image-to-video pass holds up for shorts ~6s loops with decent motion and sound sync. Style range is solid. Access sits behind the Grok sub on mobile, so not fully free and I’d love longer clips!

348 Reply Share Edit Delete Report

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🇺🇸 United States
Released 1mo ago
Free + from $30/mo

39,539
26
3.8
Grokipedia

AI-powered knowledge encyclopedia in development.

Knowledge

Open

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🇺🇸 United States
Released 5mo ago
100% Free

1,005
26
3.3

Models

Gen 3 Grok

Grok 4.2

Grok 4.2 is referenced as a Grok 4-series update for xAI’s Grok assistant, focused on general-purpose help across reasoning, coding, and real-time info retrieval inside the Grok experience.

📷Images 💻Coding 📚Learning 👗Fashion

NewMultimodal

Released 1mo ago
Gen 4 Grok

Grok Imagine 1

Grok Imagine is xAI’s video-audio generative model, exposed through the Imagine API, that turns text or images into cinematic videos and supports text-to-image, text-to-video, image-to-video and rich video editing with strong instruction following, latency and cost performance.

🎥Videos 📢Prompts 📷Images 👗Fashion

NewVideo

Released 2mo ago
Gen 3 Grok

Grok 4.1 Thinking

Grok 4.1 is xAI’s reasoning model tuned for stronger analysis and coding with faster, more direct answers. It supports long context, tool and function calling, streaming, and clean JSON, making it a solid default for assistants, RAG, and agent workflows.

💻Coding 📊Data analysis 🏋️Fitness

Multimodal

Released 4mo ago
Gen 3 Grok

Grok 4.1

Grok 4.1 is xAI’s reasoning model tuned for stronger analysis and coding with faster, more direct answers. It supports long context, tool and function calling, streaming, and clean JSON, making it a solid default for assistants, RAG, and agent workflows.

💻Coding 🔍Code reviews 🔎Problem solving 🔬Code testing

Multimodal

Released 4mo ago
Gen 3 Grok

Grok Imagine v0.9

Ling-flash-2.0 is a high-speed multilingual instruction model built for very low latency and high throughput. It supports long context, tool and function calling, and clean JSON outputs, which makes it ideal for live chat, voice assistants, and real-time automation.

📷Images 📝Writing 🔄Paraphrasing 🎥Videos

Multimodal

Released 5mo ago
Gen 3 Grok

Grok 4 Fast

Grok 4 Fast is xAI’s optimized variant of the Grok 4 family. It delivers the same reasoning backbone as Grok 4 Heavy but tuned for speed and efficiency, with lower latency and cost. It’s designed for high-throughput applications, real-time assistants, and workloads where responsiveness matters more than maximum depth.

💬Chatting 📞Customer support 💻Coding 🎥Videos

Multimodal

Released 6mo ago
Gen 7 Grok

Grok Code Fast 1

Grok Code Fast 1 is xAI’s low-cost, high-speed coding model for “agentic” workflows. It offers a 256K-token context, function calling, structured outputs, and pricing at $0.20/M input, $1.50/M output ($0.02/M cached). Available via the xAI API

Text

Released 8mo ago
Gen 3 Grok

Grok 4 Heavy

Grok 4 Heavy is xAI’s most powerful Grok 4 variant—frontier-level reasoning with native tool use, real-time search, a 256K-token context window, and higher rate limits. It’s available via the SuperGrok Heavy tier and the xAI API.

💻Coding 📊Data analysis 📝Writing 💬Chatting

Text

Released 8mo ago
Gen 3 Grok

Grok 4

reasoning and coding capabilities, real-time search integration, and is available in both generalist and “Heavy” tier versions for enhanced performance.

💻Coding 📷Images 📝Content

Multimodal

Released 8mo ago
Gen 4 Grok

Grok Image 2

Grok Image 2 is xAI’s fast vision-language model. It reads images with text, handles OCR and layout, explains charts and screenshots, and returns grounded answers or JSON with long context, tool calling, and streaming for real-time multimodal assistants.

🏭Manufacturing 🖼️Image to text

Image

Released 1y ago
Gen 7 Grok

Grok 3 Think

Grok 3 Think is xAI’s reasoning-tuned mode of Grok 3 that “thinks before responding” and can expose a step-by-step reasoning trace. It targets harder math, coding, and analysis, trading speed for depth. Built on the Grok-3 model (131,072-token context, function calling, structured outputs), it’s available via the xAI API and to X Premium+/SuperGrok users

📊Data analysis 💼Freelance job proposals 💻Coding

Text

Released 1y ago
Gen 4

Aurora

Enhanced image generation model released by xAI.

🖼️Image generation

Image

Released 1y ago

Funding rounds

View all

Series E+

Closed 2026-01-06

Raised $20B Round $20B Post-money $230B 8 investors Closed
Debt Financing

Announced 2025-07-01

Round $5B Closed
Series C

Closed 2024-12-23

Raised $6B Round $6B Post-money $50B 13 investors Closed
Series B

Announced 2024-05-26

Raised $6B Round $6B Pre-money $18B 8 investors Closed
Series A

Announced 2023-12-05

Round $134.70M Closed

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