OpenAI o4-mini vs Llama 3.1 70B (Instruct)

Compare OpenAI o4-mini by OpenAI against Llama 3.1 70B (Instruct) by Meta AI, tested across 23 shared challenges. Updated March 2026.

Which is better, OpenAI o4-mini or Llama 3.1 70B (Instruct)?

OpenAI o4-mini and Llama 3.1 70B (Instruct) are both competitive models. OpenAI o4-mini costs $1.1/M input tokens vs $0.59/M for Llama 3.1 70B (Instruct). Compare their real outputs side by side below.

Key Differences Between OpenAI o4-mini and Llama 3.1 70B (Instruct)

OpenAI o4-mini is made by openai while Llama 3.1 70B (Instruct) is from meta. On pricing, OpenAI o4-mini costs $1.1/M input tokens vs $0.59/M for Llama 3.1 70B (Instruct).

Our Verdict
OpenAI o4-mini
OpenAI o4-mini
Llama 3.1 70B (Instruct)
Llama 3.1 70B (Instruct)

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Llama 3.1 70B (Instruct) is 5.6x cheaper per token — worth considering if cost matters.

Too close to call
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