Gemini Omni 1.1 Flash vs GPT-5 Mini

Price, context window & benchmark comparison

Google

Gemini Omni 1.1 Flash

Google
$1.50 / $9.00
Input / Output · per 1M tokens
VS
OpenAI

GPT-5 Mini

OpenAI
$0.25 / $2.00
Input / Output · per 1M tokens
Compare different models
Google
OpenAI
Verdict: GPT-5 Mini is 4.9× cheaper than Gemini Omni 1.1 Flash on a typical 3:1 input/output mix. GPT-5 Mini has the larger context window (400K vs 131K).
Gemini Omni 1.1 FlashGPT-5 Mini
Input price / 1M$1.50$0.25
Output price / 1M$9.00$2.00
Blended price (3:1)$3.38$0.69
Cached input / 1M—$0.025
Context window131K400K
Max output66K128K
Intelligence index——
Coding index—15.6
Providers1—
Best provider uptime (30m)100.0%—
Vision inputYesYes
ReasoningYesYes
Tool callingNoYes
Released2026-11-042025-08-07
Retirement—2026-12-11

Cost calculator

FAQ

Which is cheaper, Gemini Omni 1.1 Flash or GPT-5 Mini?

GPT-5 Mini is 4.9× cheaper than Gemini Omni 1.1 Flash on a typical 3:1 input/output mix.

Gemini Omni 1.1 Flash vs GPT-5 Mini: which has a bigger context window?

Gemini Omni 1.1 Flash: 131,072 tokens. GPT-5 Mini: 400,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Gemini Omni 1.1 Flash ≈ $7,500, GPT-5 Mini ≈ $1,500.

More comparisons