GPT-4o vs Llama 3.1 70B
Pricing, context window, and benchmark comparison · Last updated April 2026
Llama 3.1 70B is cheaper than GPT-4o at $0.35/1M/1M vs $2.50/1M/1M input tokens — a 7.1x cost difference. GPT-4o scores higher on quality benchmarks (ELO 1286). Choose Llama 3.1 70B for cost-sensitive workloads; choose GPT-4o for maximum quality.
Which is cheaper: GPT-4o or Llama 3.1 70B?
Llama 3.1 70B is the cheaper option at $0.35/1M per 1M input tokens, compared to $2.50/1M for GPT-4o. That is a 7.1x cost difference on input tokens. Output pricing follows a similar pattern: GPT-4o charges $10.00/1M/1M vs $0.40/1M/1M for Llama 3.1 70B.
Which has better quality: GPT-4o or Llama 3.1 70B?
Based on LMSYS Chatbot Arena rankings, GPT-4o achieves a higher ELO score (1286 vs 1247), suggesting stronger performance on open-ended tasks. GPT-4o excels at multimodal: handles text, images, and audio natively. Llama 3.1 70B is known for excellent price-to-quality ratio.
Which should you choose: GPT-4o or Llama 3.1 70B?
- → Multimodal: handles text, images, and audio natively
- → Strong reasoning and instruction following
- → Excellent coding capabilities
- → Excellent price-to-quality ratio
- → Open source and self-hostable
- → Good at coding and instruction following
Frequently Asked Questions
Which is cheaper: GPT-4o or Llama 3.1 70B?
Llama 3.1 70B is cheaper at $0.35/1M per 1M input tokens, making it 7.1x more affordable.
Which has better quality: GPT-4o or Llama 3.1 70B?
GPT-4o scores higher on the LMSYS Chatbot Arena with an ELO of 1286, suggesting better overall quality for most tasks.
Which has a larger context window: GPT-4o or Llama 3.1 70B?
Llama 3.1 70B has a larger context window at 131K tokens.
Should I choose GPT-4o or Llama 3.1 70B?
Choose Llama 3.1 70B if cost is the priority. Choose GPT-4o if benchmark quality is most important. Consider your specific use case: GPT-4o is best for coding and image-understanding, while Llama 3.1 70B excels at coding and low-cost.
Is GPT-4o or Llama 3.1 70B open source?
GPT-4o is proprietary. Llama 3.1 70B is open source.