Model Comparison
Gemini 1.5 FlashGemini 2.5 Flash
Let's see who can write code better - Gemini 1.5 Flash or Gemini 2.5 Flash
Model Information
Gemini 1.5 Flash
Description
Fast and efficient multimodal model optimized for speed (deprecated - no longer available in API)
Specifications
Context Window1.0M
Max Output8K
ReleasedMay 2024
API✓
Pricing (per 1M)
In / Out
$0.075/ $0.3
Key Features
Fast inferenceLarge context windowMultimodalCost-effective
Strengths
- ✓Very fast responses
- ✓Good balance of capability and speed
- ✓Affordable pricing
- ✓Strong for its size
Weaknesses
- ✗Less capable than Pro version
- ✗May struggle with complex reasoning
- ✗Limited availability in some regions
Agent Support
No known agents
Gemini 2.5 Flash
Description
Ultra-fast Gemini model with massive context
Specifications
Context Window1.0M
Max Output8K
ReleasedJan 2025
API✓
Pricing (per 1M)
In / Out
$0.3/ $2.5
Key Features
Massive context windowVery fast inferenceMulti-modal
Strengths
- ✓1M token context
- ✓Extremely fast
- ✓Cost-effective
Weaknesses
- ✗Less capable than Pro version
- ✗May struggle with complex tasks