GPT-4o mini vs Claude 3 Opus
Pricing, context window, and benchmark comparison · Last updated April 2026
GPT-4o mini is cheaper than Claude 3 Opus at $0.15/1M/1M vs $15.00/1M/1M input tokens — a 100.0x cost difference. GPT-4o mini scores higher on quality benchmarks (ELO 1272). Choose GPT-4o mini for cost-sensitive workloads; both are strong choices depending on your budget.
Which is cheaper: GPT-4o mini or Claude 3 Opus?
GPT-4o mini is the cheaper option at $0.15/1M per 1M input tokens, compared to $15.00/1M for Claude 3 Opus. That is a 100.0x cost difference on input tokens. Output pricing follows a similar pattern: GPT-4o mini charges $0.60/1M/1M vs $75.00/1M/1M for Claude 3 Opus.
Which has better quality: GPT-4o mini or Claude 3 Opus?
Based on LMSYS Chatbot Arena rankings, GPT-4o mini achieves a higher ELO score (1272 vs 1249), suggesting stronger performance on open-ended tasks. GPT-4o mini excels at extremely low cost — cheapest flagship-family model. Claude 3 Opus is known for best claude model for creative writing.
Which should you choose: GPT-4o mini or Claude 3 Opus?
- → Extremely low cost — cheapest flagship-family model
- → Fast inference
- → Good at structured data extraction
- → Best Claude model for creative writing
- → 200K context window
- → Deep, thoughtful long-form analysis
Frequently Asked Questions
Which is cheaper: GPT-4o mini or Claude 3 Opus?
GPT-4o mini is cheaper at $0.15/1M per 1M input tokens, making it 100.0x more affordable.
Which has better quality: GPT-4o mini or Claude 3 Opus?
GPT-4o mini scores higher on the LMSYS Chatbot Arena with an ELO of 1272, suggesting better overall quality for most tasks.
Which has a larger context window: GPT-4o mini or Claude 3 Opus?
Claude 3 Opus has a larger context window at 200K tokens.
Should I choose GPT-4o mini or Claude 3 Opus?
Choose GPT-4o mini if cost is the priority. Choose GPT-4o mini if benchmark quality is most important. Consider your specific use case: GPT-4o mini is best for customer-support and data-extraction, while Claude 3 Opus excels at creative-writing and research.
Is GPT-4o mini or Claude 3 Opus open source?
GPT-4o mini is proprietary. Claude 3 Opus is proprietary.