ChatGPT vs Grok

Detailed comparison of ChatGPT and Grok. See which tool is best for your specific needs.

ChatGPT logo
ChatGPT

The default AI assistant, backed by the GPT-5.6 model family

Starting atFree
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Grok logo
Grok

xAI's assistant with real-time X data and cheap output tokens

Starting atFree
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FeatureChatGPTGrok
Starting PriceFreeFree
Free Tier
Context Window1.05M tokens500K tokens
Vision Input
Reasoning Mode
Open Weights
Web Search
API Access
API Access
Top Pros
  • Broadest feature set of any assistant (code execution, files, images, voice, custom GPTs)
  • Largest published context window of the closed flagships at 1.05M tokens
  • Three clearly separated price tiers from $0.20 to $5.00 per 1M input tokens
  • Cheapest output tokens of the closed flagships on Grok 4.3 at $2.50 / 1M
  • Real-time access to X data, which no competitor offers
  • Grok 4.3 pairs 1M context with value pricing
Main Cons
  • Highest output-token pricing of the mainstream flagships at $30 / 1M on Sol
  • Model tier naming (Sol / Terra / Luna) is harder to reason about than a simple ladder
  • No open-weight route — full vendor lock-in
  • Flagship 4.6 context is only 500K, below every major competitor
  • Prompts past 200K bill the entire request at double rate
  • Smaller enterprise and compliance track record
Best For
general assistantcodingresearchteams
real time datacost sensitiveagentscoding

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