Cracked AI Engineering

Claude Sonnet 4 vs Kimi K2 Thinking Turbo

Kimi K2 Thinking Turbo offers 262K tokens context vs 200K tokens, Kimi K2 Thinking Turbo is more cost-effective, Claude Sonnet 4 supports vision. Compare full specs, pricing, and choose the best model for your use case.

Quick Overview

Claude Sonnet 4

Vertex (Anthropic)

200K tokens context • $3.00 / $15.00 per 1M tokens

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Kimi K2 Thinking Turbo

Moonshot AI (China)

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

View full specifications →

Detailed Comparison

Specification
Claude Sonnet 4
Kimi K2 Thinking Turbo
Provider
Vertex (Anthropic)
Moonshot AI (China)
Context Window
200K tokens
262K tokens
Max Output Tokens
64K tokens
262K tokens
Input Pricing (per 1M tokens)
$3.00
$1.15
Output Pricing (per 1M tokens)
$15.00
$8.00
Release Date
May 2025
Nov 2025

Capabilities

Capability
Claude Sonnet 4
Kimi K2 Thinking Turbo
Text Generation
Vision
Function Calling
Advanced Reasoning
File Attachments

Which Model Should You Choose?

Choose Claude Sonnet 4 if:

    Choose Kimi K2 Thinking Turbo if:

    • • You need a larger context window
    • • Cost efficiency is a priority
    • • You prefer open weights