Model comparison · updated 2026-07-28

GPT-5.5 ProvsGemini 3 Flash

Side-by-side pricing for1 million tokens

Price comparison

GPT-5.5 ProGemini 3 FlashVerdict
ProviderOpenAIGoogle--
Context window400K1M--
Input / 1M tokens$30$0.50Gemini 3 Flash is 60x cheaper
Output / 1M tokens$180$3Gemini 3 Flash is 60x cheaper
Output:input ratio6x6x--
Tierfrontierbudget--

What does $10 buy?

$10 of input

GPT-5.5 Pro

333,333 tokens

Gemini 3 Flash

20,000,000 tokens

Gemini 3 Flash gives you 60x more input for the same budget.

$10 of output

GPT-5.5 Pro

55,556 tokens

Gemini 3 Flash

3,333,333 tokens

Gemini 3 Flash gives you 60x more output for the same budget.

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