GPT-4o mini vs Gemini 1.5 Pro

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

Gemini 1.5 Pro

Google

Previous generation Google pro model. Good for general tasks.

Input$1.25/M
Output$5.00/M
Context1M tokens
Best ForGeneral-purpose tasks, document analysis

Cost Comparison by Scenario

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

ScenarioGPT-4o miniGemini 1.5 ProSavings
Small Script (1K lines) $0.02 $0.19 GPT-4o mini saves $0.17 (87%)
Medium Feature (10K lines) $0.18 $1.44 GPT-4o mini saves $1.25 (87%)
Large Project (50K lines) $0.92 $7.19 GPT-4o mini saves $6.27 (87%)
Code Review (5K lines) $0.05 $0.34 GPT-4o mini saves $0.30 (86%)

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