GPT-4oOpenAI
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Gemini 2.5 ProGoogle
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GPT-4o vs Gemini 2.5 Pro

GPT-4o and Gemini 2.5 Pro are flagship models from OpenAI and Google. Gemini 2.5 Pro stands out with its massive 1M-token context window, while GPT-4o offers robust multimodal and function calling capabilities.

FeatureGPT-4oGemini 2.5 Pro
ProviderOpenAIGoogle
Context Window128K tokens1M tokens
Vision SupportYesYes
Function CallingNativeNative
Best ForGeneral-purpose tasksLong-context analysis

Our Verdict

Choose Gemini 2.5 Pro for tasks involving very long documents or extensive context. GPT-4o remains the most well-rounded model for general tasks and tool use.

Frequently Asked Questions

Which has a bigger context window?

Gemini 2.5 Pro has a 1M-token context window, nearly 8x larger than GPT-4o's 128K-token context.

Which is better for coding?

Both are strong coders. GPT-4o has more extensive training on code, while Gemini 2.5 Pro can hold more code in context at once.

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