Model Comparison

GPT-5.3 CodexGemini 2.0 Flash Lite
Let's see who can write code better - GPT-5.3 Codex or Gemini 2.0 Flash Lite

Model Information

GPT-5.3 Codex

OpenAI

Description

Next-generation coding-optimized model from OpenAI with enhanced autonomous development capabilities

Specifications

Context Window272K
Max Output33K
ReleasedFeb 2026
API

Pricing (per 1M)

In / Out
$1.5/ $12

Key Features

Advanced autonomous codingEnhanced code reviewMulti-step reasoningFull-stack development

Strengths

  • State-of-the-art coding benchmarks
  • Superior autonomous task completion
  • Excellent code review capabilities
  • Large context window

Weaknesses

  • Premium pricing
  • Optimized for coding over general tasks

Agent Support

No known agents

Gemini 2.0 Flash Lite

Google

Description

Lightweight Gemini 2.0 model for simple tasks

Specifications

Context Window100K
Max Output4K
ReleasedDec 2024
API

Pricing (per 1M)

In / Out
$0.075/ $0.3

Key Features

Ultra-fastVery affordableBasic capabilities

Strengths

  • Extremely fast
  • Very cost-effective
  • Good for simple queries

Weaknesses

  • Limited reasoning
  • Small context window
  • Basic capabilities only

Agent Support

No known agents