← All Models

Gemini 3.5 Flash vs GPT-4o

Gemini 3.5 Flash leads in 3 of 8 categories

Arena ELO

GPT-4o

Cheaper

Gemini 3.5 Flash

Faster

GPT-4o

Detailed Comparison

CategoryGemini 3.5 FlashGPT-4o
ProviderGoogle OpenAI
Context Window1M WIN128K
Input Price ($/1M)$1.5 WIN$2.5
Output Price ($/1M)$9 WIN$10
Arena ELON/A 1340 WIN
CodingN/A 30.8% SWE-bench
ReasoningN/A unknown
Speed (tokens/sec)N/A ~100 t/s WIN
Open SourceNo No

Frequently Asked Questions

Which is cheaper, Gemini 3.5 Flash or GPT-4o?

Gemini 3.5 Flash is approximately 16% cheaper than GPT-4o per million tokens.

Which is better for coding, Gemini 3.5 Flash or GPT-4o?

Gemini 3.5 Flash scores N/A on coding benchmarks, while GPT-4o scores 30.8% SWE-bench.

Which has a larger context window?

Gemini 3.5 Flash supports 1M context, while GPT-4o supports 128K.

Is Gemini 3.5 Flash or GPT-4o open source?

Gemini 3.5 Flash is proprietary. GPT-4o is proprietary.