Overview
Grok is the conversational AI from xAI (Elon Musk's AI company), deeply integrated with the X platform (formerly Twitter). It specializes in real-time knowledge thanks to direct X feed access, plus DeepSearch, image generation (Imagine), and video generation. The current flagship is Grok 4.6, released August 12, 2026, with a 500K-token context window.
Latest / Key Features
Grok 4.6
Grok 4.6 carries a 500,000-token context window and focuses on long-running agents, agentic coding, and interactive or visual work. API pricing is $2 per million input tokens and $6 per million output tokens below 200K prompt tokens; above 200K the whole request bills at $4 / $12. The SuperGrok Heavy tier runs a multi-agent configuration that parallelizes tasks across specialist agents.
Big Brain Mode
Allocates extra compute for complex multi-step reasoning — math, deep analysis, and structured problem solving.
Four Operating Modes
- Auto — picks the best approach automatically
- Fast — speed-optimized brief answers
- Expert — long-form, high-quality work output
- Heavy — exclusive to SuperGrok Heavy; multi-agent parallel execution
Grok Imagine (Images & Video)
Alongside the Imagine image model, Grok Imagine Video 1.5 reached general availability on June 16, 2026, generating 6-second 720p clips in roughly 25 seconds with sound effects, ambience, and dialogue produced in the same pass.
X Platform Integration
Grok pulls live data from X timelines and trends, giving it the freshest take on currently trending topics.
SuperGrok Lite Tier
xAI introduced SuperGrok Lite ($10/mo) in March 2026. It targets light users who mainly want Grok Imagine access without paying for the $30 tier.
Plans & Pricing
Consumer options are the free X Premium allowance plus SuperGrok Lite ($10), SuperGrok ($30), X Premium+ ($40), and SuperGrok Heavy ($300).
| Plan | Monthly | Highlights |
|---|---|---|
| Free | $0 | Limited use, base model |
| SuperGrok Lite | $10 | Light usage, mainly Grok Imagine |
| SuperGrok | $30 | Grok 4.6, DeepSearch, Big Brain, larger context |
| SuperGrok Heavy | $300 | Multi-agent configuration, top priority access |
| X Premium+ | $40 | Includes X platform benefits + Grok |
Common Use Cases
- Real-time information: Follow X trends and breaking news
- Research: DeepSearch investigations
- Image generation: Imagine visuals
- Video generation: Grok Imagine Video 1.5 clips
- Hard problems: Heavy mode multi-agent solving
Strengths
- ✅ Real-time X integration — fastest on trending topics
- ✅ Heavy multi-agent mode — strong on hard problems
- ✅ Unified image and video generation
- ✅ Looser content policies — answers topics other AIs refuse
- ✅ Lite tier makes entry cheap
Weaknesses
- ❌ SuperGrok Heavy at $300/mo is an outlier in price
- ❌ Answer quality can be inconsistent vs Claude/GPT
- ❌ Many flows assume you have an X account
- ❌ Fewer enterprise / compliance deployments
- ❌ The 500K-token context is shorter than the 1M-token windows offered by rival flagships
Official Links
- Website: https://grok.com
- xAI: https://x.ai
- Plans: https://grok.com/plans
使いこなし Tips
SNS・コミュニティで共有されている実践的な使い方
- Grok Imagine's "Extend video" feature adds another 10 seconds to an existing video from a chosen start frame — repeat it to build a much longer clip (Source: https://x.com/mark_k/status/2028404115022229833)
- In Grok Imagine custom prompts, end with "showcasing [what you want]" to spell out the intended result — it cuts down on guesswork in what Imagine renders (Source: https://x.com/medicgordus/status/1953644131982750047)