GPT-4o mini vs Llama 3.1 70B
Pricing, context window, and benchmark comparison · Last updated April 2026
GPT-4o mini is cheaper than Llama 3.1 70B at $0.15/1M/1M vs $0.35/1M/1M input tokens — a 2.3x 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 Llama 3.1 70B?
GPT-4o mini is the cheaper option at $0.15/1M per 1M input tokens, compared to $0.35/1M for Llama 3.1 70B. That is a 2.3x cost difference on input tokens. Output pricing follows a similar pattern: GPT-4o mini charges $0.60/1M/1M vs $0.40/1M/1M for Llama 3.1 70B.
Which has better quality: GPT-4o mini or Llama 3.1 70B?
Based on LMSYS Chatbot Arena rankings, GPT-4o mini achieves a higher ELO score (1272 vs 1247), suggesting stronger performance on open-ended tasks. GPT-4o mini excels at extremely low cost — cheapest flagship-family model. Llama 3.1 70B is known for excellent price-to-quality ratio.
Which should you choose: GPT-4o mini or Llama 3.1 70B?
- → Extremely low cost — cheapest flagship-family model
- → Fast inference
- → Good at structured data extraction
- → Excellent price-to-quality ratio
- → Open source and self-hostable
- → Good at coding and instruction following
Frequently Asked Questions
Which is cheaper: GPT-4o mini or Llama 3.1 70B?
GPT-4o mini is cheaper at $0.15/1M per 1M input tokens, making it 2.3x more affordable.
Which has better quality: GPT-4o mini or Llama 3.1 70B?
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 Llama 3.1 70B?
Llama 3.1 70B has a larger context window at 131K tokens.
Should I choose GPT-4o mini or Llama 3.1 70B?
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 Llama 3.1 70B excels at coding and low-cost.
Is GPT-4o mini or Llama 3.1 70B open source?
GPT-4o mini is proprietary. Llama 3.1 70B is open source.