Cracked AI Engineering

Gemini 1.5 Pro vs Gemini 2.5 Flash Image

Gemini 1.5 Pro offers 1.0M tokens context vs 33K tokens, Gemini 2.5 Flash Image is more cost-effective, Gemini 2.5 Flash Image includes advanced reasoning. Compare full specs, pricing, and choose the best model for your use case.

Quick Overview

Gemini 1.5 Pro

Google

1.0M tokens context • $1.25 / $5.00 per 1M tokens

View full specifications →

Gemini 2.5 Flash Image

Google

33K tokens context • $0.30 / $30.00 per 1M tokens

View full specifications →

Detailed Comparison

Specification
Gemini 1.5 Pro
Gemini 2.5 Flash Image
Provider
Google
Google
Context Window
1.0M tokens
33K tokens
Max Output Tokens
8K tokens
33K tokens
Input Pricing (per 1M tokens)
$1.25
$0.30
Output Pricing (per 1M tokens)
$5.00
$30.00
Release Date
Feb 2024
Aug 2025

Capabilities

Capability
Gemini 1.5 Pro
Gemini 2.5 Flash Image
Text Generation
Vision
Audio Input
Video Understanding
Function Calling
File Attachments
Advanced Reasoning

Which Model Should You Choose?

Choose Gemini 1.5 Pro if:

  • • You need a larger context window

Choose Gemini 2.5 Flash Image if:

  • • Cost efficiency is a priority
  • • You need advanced reasoning