Comprehensive side-by-side LLM comparison
o4-mini leads with 15.1% higher average benchmark score. Gemini 2.0 Flash offers 756.8K more tokens in context window than o4-mini. Gemini 2.0 Flash is $5.00 cheaper per million tokens. Overall, o4-mini is the stronger choice for coding tasks.
Gemini 2.0 Flash was developed as the next generation of Google's fast multimodal model, designed to provide improved performance while maintaining the speed and efficiency that defines the Flash family. Built with enhanced reasoning and generation capabilities, it serves applications requiring both quality and responsiveness.
OpenAI
o4-mini was created as part of the next generation of OpenAI's reasoning models, designed to continue advancing the balance between analytical capability and operational efficiency. Built to bring cutting-edge reasoning techniques to applications requiring quick turnaround, it represents the evolution of compact reasoning-focused models.
4 months newer

Gemini 2.0 Flash
2024-12-01

o4-mini
OpenAI
2025-04-16
Cost per million tokens (USD)

Gemini 2.0 Flash

o4-mini
Context window and performance specifications
Average performance across 2 common benchmarks

Gemini 2.0 Flash

o4-mini
o4-mini
2024-05-31
Gemini 2.0 Flash
2024-08-01
Available providers and their performance metrics

Gemini 2.0 Flash

o4-mini

Gemini 2.0 Flash

o4-mini

Gemini 2.0 Flash

o4-mini
OpenAI