Gemini 3 Flash Preview vs OpenAI GPT Mini Latest, API pricing and model comparison

Compare Gemini 3 Flash Preview vs OpenAI GPT Mini Latest side by side by input/output token price, context window, benchmark signals, capabilities, and example monthly API cost.

Quick comparison summary

This page compares Gemini 3 Flash Preview vs OpenAI GPT Mini Latest in one matrix. Current records: Gemini 3 Flash Preview on OpenRouter: $0.5/$3 per 1M tokens, 1049K context window; OpenAI GPT Mini Latest on OpenRouter: $0.75/$4.5 per 1M tokens, 400K context window. Prices are estimates—verify official provider pages before production use.

Gemini 3 Flash Preview

google/gemini-3-flash-preview

OpenRouter

Input: $0.5000 / 1M
Output: $3.00 / 1M
Context: 1.0m
Model page: Details

GPT Mini Latest

~openai/gpt-mini-latest

OpenRouter

Input: $0.7500 / 1M
Output: $4.50 / 1M
Context: 400k
Model page: Details

Comparison matrixLLM Table

Models to compare2/4

Model 1

1.0M

Select model344 models

Model 2

400K

Select model344 models

Google: Gemini 3 Flash Preview

OpenRouter

Cheapest (this scenario)

Input

$0.5000 / 1M

Output

$3.00 / 1M

Context

1.0MLargest context

Monthly cost

$140.00

Benchmark

1,473Top benchmarkLMArena Text Arena

VisionToolsJSONReasoningAudioLong context

OpenAI GPT Mini Latest

OpenRouter

Input

$0.7500 / 1M

Output

$4.50 / 1M

Context

400K

Monthly cost

$210.00

Benchmark

—

VisionToolsJSONReasoningLong context

Google: Gemini 3 Flash Preview

OpenRouter

OpenAI GPT Mini Latest

OpenRouter

Input

$0.5000 / 1MCheapest (this scenario)

$0.7500 / 1M

Output

$3.00 / 1MCheapest (this scenario)

$4.50 / 1M

Context

1.0MLargest context

400K

Benchmark

1,473Top benchmark

LMArena Text Arena

—

Monthly cost

$140.00Cheapest (this scenario)

$210.00

Capabilities

VisionToolsJSONReasoningAudioLong context

VisionToolsJSONReasoningLong context

FAQ

Model comparison notes

How do Gemini 3 Flash Preview vs OpenAI GPT Mini Latest API prices compare?

Compare input and output prices per 1M tokens side by side. The same underlying model can list different prices by route (Direct API vs OpenRouter); this table uses the selected route records.

Which model looks cheaper?

Scenario cost depends on your input/output mix. The example monthly cost in the table uses default token volumes—adjust with the cost calculator for your traffic.

Are benchmark scores included?

Independent or provider-reported benchmark signals appear when available. Benchmarks do not replace price analysis—evaluate both for your quality requirements.

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