Model Comparison

Gemini 1.5 ProGemini 2.5 Flash Lite
Let's see who can write code better - Gemini 1.5 Pro or Gemini 2.5 Flash Lite

Model Information

Gemini 1.5 Pro

Google

Description

Multimodal model with massive context window up to 2M tokens (deprecated - no longer available in API)

Specifications

Context Window2.0M
Max Output8K
ReleasedMay 2024
API✓

Pricing (per 1M)

In / Out
$1.25/ $5

Key Features

Massive context windowMultimodal understandingCode executionAudio processingVideo understanding

Strengths

  • ✓Largest context window available
  • ✓Strong multimodal capabilities
  • ✓Good at following instructions
  • ✓Excellent for document analysis

Weaknesses

  • ✗Can be slow with large contexts
  • ✗API availability limitations
  • ✗Inconsistent performance

Agent Support

No known agents

Gemini 2.5 Flash Lite

Google

Description

Lightweight version of Gemini 2.5 Flash for simple tasks

Specifications

Context Window500K
Max Output4K
ReleasedJan 2025
API✓

Pricing (per 1M)

In / Out
$0.1/ $0.4

Key Features

Fast inferenceCost-optimizedGood for simple tasks

Strengths

  • ✓Very fast responses
  • ✓Extremely cost-effective
  • ✓Low latency

Weaknesses

  • ✗Limited capabilities
  • ✗Smaller context than full Flash
  • ✗Basic reasoning only

Agent Support

No known agents