Model Comparison

GPT-5 CodexCursor Small
Let's see who can write code better - GPT-5 Codex or Cursor Small

Model Information

GPT-5 Codex

OpenAI

Description

Flagship model from OpenAI optimised for coding tasks

Specifications

Context Window272K
Max Output33K
ReleasedSep 2025
API

Pricing (per 1M)

In / Out
$1.25/ $10

Key Features

CodingAdvanced reasoningMulti-modal native

Strengths

  • State-of-the-art performance
  • Optimised for coding
  • Large context window

Weaknesses

  • Likely very expensive
  • Unknown specifications

Agent Support

No known agents

Cursor Small

Description

Cursor's proprietary small model optimized for code completion, only available in Cursor IDE

Specifications

Context Window60K
Max Output4K
ReleasedJun 2024
API

Key Features

Fast code completionIDE-optimizedLow latency

Strengths

  • Very fast responses
  • Optimized for IDE use
  • Good for autocomplete

Weaknesses

  • Limited to Cursor IDE
  • Smaller model
  • Less capable than larger models

Agent Support