Grok 2 vs GPT-4o mini
Pricing, context window, and benchmark comparison · Last updated April 2026
GPT-4o mini is cheaper than Grok 2 at $0.15/1M/1M vs $2.00/1M/1M input tokens — a 13.3x cost difference. Grok 2 scores higher on quality benchmarks (ELO 1290). Choose GPT-4o mini for cost-sensitive workloads; choose Grok 2 for maximum quality.
Which is cheaper: Grok 2 or GPT-4o mini?
GPT-4o mini is the cheaper option at $0.15/1M per 1M input tokens, compared to $2.00/1M for Grok 2. That is a 13.3x cost difference on input tokens. Output pricing follows a similar pattern: Grok 2 charges $10.00/1M/1M vs $0.60/1M/1M for GPT-4o mini.
Which has better quality: Grok 2 or GPT-4o mini?
Based on LMSYS Chatbot Arena rankings, Grok 2 achieves a higher ELO score (1290 vs 1272), suggesting stronger performance on open-ended tasks. Grok 2 excels at real-time x (twitter) data access. GPT-4o mini is known for extremely low cost — cheapest flagship-family model.
Which should you choose: Grok 2 or GPT-4o mini?
- → Real-time X (Twitter) data access
- → Strong at current events and trending topics
- → Good humor and conversational ability
- → Extremely low cost — cheapest flagship-family model
- → Fast inference
- → Good at structured data extraction
Frequently Asked Questions
Which is cheaper: Grok 2 or GPT-4o mini?
GPT-4o mini is cheaper at $0.15/1M per 1M input tokens, making it 13.3x more affordable.
Which has better quality: Grok 2 or GPT-4o mini?
Grok 2 scores higher on the LMSYS Chatbot Arena with an ELO of 1290, suggesting better overall quality for most tasks.
Which has a larger context window: Grok 2 or GPT-4o mini?
Grok 2 has a larger context window at 131K tokens.
Should I choose Grok 2 or GPT-4o mini?
Choose GPT-4o mini if cost is the priority. Choose Grok 2 if benchmark quality is most important. Consider your specific use case: Grok 2 is best for research and creative-writing, while GPT-4o mini excels at customer-support and data-extraction.
Is Grok 2 or GPT-4o mini open source?
Grok 2 is proprietary. GPT-4o mini is proprietary.