Cracked AI Engineering

GPT-5-Codex vs Kimi K2 Thinking Turbo

GPT-5-Codex offers 400K tokens context vs 262K tokens, GPT-5-Codex supports vision, Kimi K2 Thinking Turbo has open weights. Compare full specs, pricing, and choose the best model for your use case.

Quick Overview

GPT-5-Codex

Azure

400K tokens context • Pricing not available

View full specifications →

Kimi K2 Thinking Turbo

Moonshot AI (China)

262K tokens context • $1.15 / $8.00 per 1M tokens

View full specifications →

Detailed Comparison

Specification
GPT-5-Codex
Kimi K2 Thinking Turbo
Provider
Azure
Moonshot AI (China)
Context Window
400K tokens
262K tokens
Max Output Tokens
128K tokens
262K tokens
Input Pricing (per 1M tokens)
N/A
$1.15
Output Pricing (per 1M tokens)
N/A
$8.00
Release Date
Sep 2025
Nov 2025

Capabilities

Capability
GPT-5-Codex
Kimi K2 Thinking Turbo
Text Generation
Vision
Function Calling
Advanced Reasoning

Which Model Should You Choose?

Choose GPT-5-Codex if:

  • • You need a larger context window

Choose Kimi K2 Thinking Turbo if:

  • • You prefer open weights