Comprehensive side-by-side LLM comparison
o3-mini leads with 15.9% higher average benchmark score. Gemini 1.5 Flash offers 756.8K more tokens in context window than o3-mini. Gemini 1.5 Flash is $4.75 cheaper per million tokens. Gemini 1.5 Flash supports multimodal inputs. Overall, o3-mini is the stronger choice for coding tasks.
Gemini 1.5 Flash was created as a fast and efficient multimodal model, designed to provide quick responses while handling text, images, and other modalities. Built for applications requiring low latency and high throughput, it balances capability with speed to serve real-time and high-volume use cases.
OpenAI
o3-mini was created as an efficient variant of the o3 reasoning model, designed to provide advanced thinking capabilities with reduced computational requirements. Built to make next-generation reasoning accessible to a broader range of applications, it balances analytical depth with practical speed and cost considerations.
9 months newer

Gemini 1.5 Flash
2024-05-01

o3-mini
OpenAI
2025-01-30
Cost per million tokens (USD)

Gemini 1.5 Flash

o3-mini
Context window and performance specifications
Average performance across 4 common benchmarks

Gemini 1.5 Flash

o3-mini
o3-mini
2023-09-30
Gemini 1.5 Flash
2023-11-01
Available providers and their performance metrics

Gemini 1.5 Flash

o3-mini

Gemini 1.5 Flash

o3-mini

Gemini 1.5 Flash

o3-mini
Azure
OpenAI