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Grok
xAI's AI assistant powered by Grok 4.5. Known for real-time X data access, strong math reasoning, token-efficient coding, and a blunt, less-filtered conversational style.
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Grok 4.5 and GPT-5.6 dropped within 24 hours of each other. We compared benchmarks, pricing, real-time data, and who each one is actually built for in 2026.
xAI's AI assistant powered by Grok 4.5. Known for real-time X data access, strong math reasoning, token-efficient coding, and a blunt, less-filtered conversational style.
OpenAI's conversational AI assistant powered by GPT-5.6. The most widely used AI chatbot with 900+ million weekly active users, a massive plugin ecosystem, and enterprise integrations.
At-a-glance verdicts across key categories.
Best Overall
ChatGPTChatGPT's larger ecosystem, better writing, and more polished product make it the better all-around choice.
Best Value
ChatGPTChatGPT Plus at $20/mo undercuts SuperGrok at $30/mo while offering more features including Codex and DALL-E.
Best for Real-Time Data
GrokGrok's native X integration and DeepSearch pull live social data no ChatGPT tier can match.
Best for Math & Reasoning
GrokGrok 4 scored 95% on AIME 2025 vs ChatGPT's 86%. Big Brain mode excels at complex reasoning.
Best for Coding
ChatGPTChatGPT's Codex agent, code interpreter, and 88.8% Terminal-Bench score give it the coding edge.
Best API Value
GrokGrok 4.5 at $2/$6 per 1M tokens is far cheaper than GPT-5.6 Sol at $5/$30, with better token efficiency.
Best for Enterprises
ChatGPTChatGPT is used by 92% of Fortune 500 companies with deeper Microsoft 365 and third-party integrations.
Side-by-side comparison of key features and capabilities.
| Feature | GGrok | CChatGPT |
|---|---|---|
| Overall Rating | 4.6/5 | 4.8/5 |
| Ease of Use | ||
| AI Quality | Excellent | Excellent |
| Context Window | 1M tokens | 1M tokens |
| Real-Time X Data | ||
| Web Browsing | ||
| Image Generation | Grok Imagine | DALL-E / GPT-Image |
| Video Generation | Grok Imagine | Sora (720p) |
| Voice Mode | ||
| Code Execution | Codex Agent | |
| Computer Use | ||
| Memory | Session only | Persistent cross-session |
| Integrations | Limited | 500+ |
| Custom Assistants | Skills | Custom GPTs |
| Office File Output | Native PDF/PPTX/XLSX | Via Canvas/Code Interpreter |
| API Price (per 1M) | $2 input / $6 output | $5 input / $30 output |
| Free Tier | Limited daily use | GPT-4o mini + ads |
| Paid Plan | $30/mo SuperGrok | $20/mo Plus |
| Best For | Real-time data, math, API value | Writing, coding, enterprises |
Key facts about each tool at a glance.
xAI's AI assistant powered by Grok 4.5. Known for real-time X data access, strong math reasoning, token-efficient coding, and a blunt, less-filtered conversational style.
Founded
Company
Platforms
Pricing
Ideal User
Strengths
OpenAI's conversational AI assistant powered by GPT-5.6. The most widely used AI chatbot with 900+ million weekly active users, a massive plugin ecosystem, and enterprise integrations.
Founded
Company
Platforms
Pricing
Ideal User
Strengths
In-depth breakdown of how each tool performs across key categories.
This is Grok's biggest competitive advantage. It pulls live data from X and the web natively, without toggling a search mode. ChatGPT has web browsing for paid users but lacks access to X's real-time social data stream.
Native X integration pulls live posts, trending topics, and breaking news in real time. DeepSearch runs multiple search queries autonomously and synthesizes comprehensive research reports. No other AI assistant replicates this X data access.
Web browsing built into GPT-5.6 for paid users. Deep Research mode (powered by o3) reasons for up to 30 minutes and produces outputs up to 100,000 tokens. More thorough but slower than Grok's DeepSearch.
ChatGPT produces more polished, stylistically consistent long-form writing. Grok's output is faster and more direct but often requires more editing for professional content.
Direct, fast writing with a casual tone. Good for quick drafts and social media content. Less polished for formal or client-facing documents. Can be sarcastic or blunt by default.
Polished, professional writing with consistent style. Better at matching specified tone. Canvas feature supports collaborative editing. GPT-5.6 was specifically updated to feel warmer and more conversational.
ChatGPT leads on coding benchmarks and has a more mature coding ecosystem with Codex. Grok's token efficiency makes it cheaper for high-volume API coding pipelines.
Grok 4.5 scored 83.3% on Terminal-Bench 2.1. Token-efficient — uses ~14K output tokens per task vs Claude's 67K. Grok Build is a coding agent for terminal workflows. 64.7% on SWE-Bench Pro.
GPT-5.6 Sol scored 88.8% on Terminal-Bench 2.1 (91.9% ultra mode). Codex agent handles complex dev workflows. Code interpreter runs Python in a sandbox. 58.6% on SWE-Bench Pro.
Grok dominates on math benchmarks. Its Think and Big Brain modes are genuinely effective for complex mathematical problem-solving.
Grok 4 scored 95% on AIME 2025 (vs ChatGPT's 86%). Grok 4 Heavy cleared 50% on Humanity's Last Exam. Big Brain mode provides extended reasoning for hard problems.
GPT-5.4 scored 92.8% on GPQA Diamond for scientific reasoning. o3 mode provides extended thinking. Strong but behind Grok on pure math benchmarks.
Both generate images and voice, but ChatGPT's ecosystem is more mature. Grok produces native Office files (PDF, PPTX, XLSX) directly from prompts — a unique advantage.
Grok Imagine generates images and video. Voice mode on mobile. Native Office file output (PDF, PPTX, XLSX) through add-ins. Video generation up to 15 seconds with audio.
DALL-E for images, Sora for 720p video. Advanced Voice Mode with interruption. Canvas for collaborative writing. Computer use for desktop automation. More polished multimodal experience.
ChatGPT has a vastly larger ecosystem. 900+ million weekly active users, 500+ integrations, Custom GPTs marketplace, and deep Microsoft 365 integration. Grok's ecosystem is growing but much smaller.
Accessed via grok.com, X app, and mobile apps. API compatible with OpenAI SDKs. Skills for persistent expertise. Limited third-party integrations. Open-source model weights available.
Custom GPTs marketplace with thousands of assistants. 500+ native integrations (Google Drive, GitHub, Slack, etc.). Microsoft 365 and Copilot integration. Dedicated desktop apps. Used by 92% of Fortune 500.
ChatGPT has stronger enterprise privacy controls and is used by more Fortune 500 companies. Grok has fewer content restrictions but also fewer documented privacy safeguards.
Deliberately less restricted than ChatGPT. SOC 2 compliance on paid tiers. Custom data retention on enterprise. Fewer content guardrails — will discuss topics other AIs decline.
SOC 2 compliant. Enterprise gets zero data retention by default. Chat history can be turned off. Detailed privacy policy. More conservative content policies. Used by 92% of Fortune 500.
Grok 4.5 is dramatically cheaper on the API and more token-efficient per task. For high-volume developers, this is a significant cost advantage.
Grok 4.5: $2 input / $6 output per 1M tokens. 75% cache discount. ~14K output tokens per task. Grok 4.3 even cheaper at $1.25/$2.50 with 1M context. Batch mode at 50% off.
GPT-5.6 Sol: $5 input / $30 output per 1M tokens. GPT-5.6 Luna: $1/$6. Higher token consumption per task. More expensive at scale, but stronger accuracy on precision-critical tasks.
How much each tool costs across every tier.
| Tier | GGrok | CChatGPT |
|---|---|---|
FreeFree | Limited daily use, older models, basic voice, Aurora image gen | GPT-4o mini, capped usage, web browsing, file uploads (ad-supported)Best Value |
Entry | X Premium: $8/mo — Enhanced Grok in X app | Go: $8/mo — Higher limits, GPT-5.6 Terra, ad-supported |
Standard | SuperGrok: $30/mo — Grok 4.5, DeepSearch, Voice, unlimited Imagine | Plus: $20/mo — GPT-5.6 Sol, DALL-E, Codex, Advanced VoiceBest Value |
Premium | X Premium+: $40/mo — Grok 4.5 + X Premium perks | Pro: $100/mo — 5x Codex usage, o1 Pro mode |
Top Tier | SuperGrok Heavy: $300/mo — Grok 4 Heavy, multi-agent, max limits | Pro Max: $200/mo — GPT-5 Pro, unlimited audio/video, 20x usageBest Value |
Grok
Limited daily use, older models, basic voice, Aurora image gen
ChatGPTBest Value
GPT-4o mini, capped usage, web browsing, file uploads (ad-supported)
Grok
X Premium: $8/mo — Enhanced Grok in X app
ChatGPT
Go: $8/mo — Higher limits, GPT-5.6 Terra, ad-supported
Grok
SuperGrok: $30/mo — Grok 4.5, DeepSearch, Voice, unlimited Imagine
ChatGPTBest Value
Plus: $20/mo — GPT-5.6 Sol, DALL-E, Codex, Advanced Voice
Grok
X Premium+: $40/mo — Grok 4.5 + X Premium perks
ChatGPT
Pro: $100/mo — 5x Codex usage, o1 Pro mode
Grok
SuperGrok Heavy: $300/mo — Grok 4 Heavy, multi-agent, max limits
ChatGPTBest Value
Pro Max: $200/mo — GPT-5 Pro, unlimited audio/video, 20x usage
Strengths and weaknesses of each tool.
Practical recommendations for common use cases.
ChatGPT's superior writing quality and Canvas editing make it better for content creation.
ChatGPT's larger ecosystem, memory, and free tier make it more accessible for students.
ChatGPT's Codex agent, code interpreter, and higher Terminal-Bench score give it the edge.
Grok's 95% AIME score and Big Brain mode excel at mathematical reasoning.
Grok's real-time X data and DeepSearch are unmatched for breaking news monitoring.
Grok's live social sentiment from X is invaluable for brand monitoring and trend tracking.
ChatGPT's Fortune 500 adoption, Microsoft integration, and enterprise security win here.
Grok 4.5 at $2/$6 with 14K tokens/task is dramatically cheaper than GPT-5.6 at $5/$30.
ChatGPT's writing quality, integrations, and lower Plus price suit freelance workflows.
Both offer image and video generation. ChatGPT has DALL-E + Sora; Grok has Imagine + video.
Head-to-head ratings across key dimensions.
Common questions about these tools.
It depends on your use case. Grok is better for real-time X data, math reasoning (95% AIME), and API cost efficiency ($2/$6 vs $5/$30). ChatGPT is better for writing quality, coding (88.8% Terminal-Bench), integrations, and enterprise use. For most users, ChatGPT remains the more complete product.
SuperGrok costs $30/month and includes full access to Grok 4.5, DeepSearch, Big Brain mode, Voice, and unlimited Grok Imagine image generation. SuperGrok Heavy costs $300/month for maximum limits and multi-agent features.
Yes, this is Grok's biggest advantage. It pulls live posts, trending topics, and breaking news from X natively without needing a search toggle. DeepSearch goes further by running multiple web searches and synthesizing results into research reports.
ChatGPT Plus costs $20/month vs SuperGrok at $30/month, making ChatGPT cheaper for consumers. However, Grok's API is far cheaper — $2/$6 per 1M tokens vs GPT-5.6 Sol at $5/$30 — making Grok better value for developers at scale.
No, Grok does not currently support persistent memory across separate conversations. Each new chat starts fresh. ChatGPT's memory feature carries preferences and context across sessions, which is a significant advantage for ongoing projects.
ChatGPT leads on coding with 88.8% on Terminal-Bench 2.1, Codex agent, and code interpreter. Grok is more token-efficient and cheaper per API call, making it better for high-volume coding pipelines. For interactive coding workflows, ChatGPT's Codex is more mature.
Yes, Grok Imagine generates images and video clips up to 15 seconds with audio. However, Grok's image generation has faced safety concerns after deepfake incidents. ChatGPT's DALL-E is generally considered more reliable for professional image generation.
Overall Winner
ChatGPT
ChatGPT wins for most users. Its larger ecosystem, better writing quality, Codex coding agent, persistent memory, and 500+ integrations make it the more complete product at a lower price ($20/mo vs $30/mo). However, Grok is the clear choice if you need real-time X data, math-heavy reasoning, or a cheaper API for high-volume development.
Choose Grok if you monitor X professionally, need real-time social data, do heavy math/research, want a cheaper API for high-volume coding, or prefer fewer content restrictions.
Choose ChatGPT if you need polished writing, a mature coding ecosystem, persistent memory, enterprise integrations, or the most widely-supported AI platform.
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