Cracked AI Engineering

Horizon Alpha vs Kimi K2

Horizon Alpha offers 256K tokens context vs 131K tokens, Horizon Alpha is more cost-effective, Horizon Alpha supports vision. Compare full specs, pricing, and choose the best model for your use case.

Quick Overview

Horizon Alpha

OpenRouter

256K tokens context • Free

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Kimi K2

OpenRouter

131K tokens context • $0.55 / $2.20 per 1M tokens

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Detailed Comparison

Specification
Horizon Alpha
Kimi K2
Provider
OpenRouter
OpenRouter
Context Window
256K tokens
131K tokens
Max Output Tokens
128K tokens
33K tokens
Input Pricing (per 1M tokens)
Free
$0.55
Output Pricing (per 1M tokens)
Free
$2.20
Release Date
Jul 2025
Jul 2025

Capabilities

Capability
Horizon Alpha
Kimi K2
Text Generation
Vision
Function Calling
File Attachments

Which Model Should You Choose?

Choose Horizon Alpha if:

  • • You need a larger context window
  • • Cost efficiency is a priority

Choose Kimi K2 if:

  • • You prefer open weights