GPT-4o mini vs Llama 3.1 70B

Performance benchmarks + pricing comparison — updated April 2026

GPT-4o mini

OpenAI

Affordable small model. Fast and cost-effective for high-volume coding tasks.

Input$0.150/M
Output$0.600/M
Context128K tokens
Best ForHigh-volume tasks, simple coding, cost-sensitive projects
Benchmark58/100

Llama 3.1 70B

Meta

Meta's mid-size Llama 3.1. Strong general performance with open weights for custom deployment.

Input$0.200/M
Output$0.400/M
Context128K tokens
Best ForGeneral AI tasks, custom deployment, fine-tuning

Cost Comparison by Scenario

Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.

ScenarioGPT-4o miniLlama 3.1 70BSavings
Small Script (1K lines) $0.02 $0.02 Llama 3.1 70B saves <$0.01 (22%)
Medium Feature (10K lines) $0.18 $0.15 Llama 3.1 70B saves $0.03 (18%)
Large Project (50K lines) $0.92 $0.75 Llama 3.1 70B saves $0.17 (18%)
Code Review (5K lines) $0.05 $0.04 Llama 3.1 70B saves <$0.01 (4%)

Verdict

GPT-4o mini wins on both price and performance — $0.150/M input with a benchmark score of N/A/100.

For most developers, this is the clear choice between these two models.

Compare with Other Models