Grok 4 vs Gemini 2.5 Flash
Gemini 2.5 Flash offers 1.0M tokens context vs 256K tokens, Gemini 2.5 Flash is more cost-effective, Gemini 2.5 Flash supports vision. Compare full specs, pricing, and choose the best model for your use case.
Quick Overview
Gemini 2.5 Flash
FastRouter
1.0M tokens context • $0.30 / $2.50 per 1M tokens
View full specifications →Detailed Comparison
Specification
Grok 4
Gemini 2.5 Flash
Provider
FastRouter
FastRouter
Context Window
256K tokens
1.0M tokens
Max Output Tokens
64K tokens
66K tokens
Input Pricing (per 1M tokens)
$3.00
$0.30
Output Pricing (per 1M tokens)
$15.00
$2.50
Release Date
Jul 2025
Jun 2025
Capabilities
Capability
Grok 4
Gemini 2.5 Flash
Text Generation
Function Calling
Advanced Reasoning
Vision
PDF Processing
File Attachments
Which Model Should You Choose?
Choose Grok 4 if:
Choose Gemini 2.5 Flash if:
- • You need a larger context window
- • Cost efficiency is a priority