Cracked AI Engineering

Horizon Alpha vs Kimi K2 Instruct 0905

Horizon Alpha is more cost-effective, Horizon Alpha supports vision, Kimi K2 Instruct 0905 has open weights. 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 Instruct 0905

OpenRouter

262K tokens context • $0.60 / $2.50 per 1M tokens

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Detailed Comparison

Specification
Horizon Alpha
Kimi K2 Instruct 0905
Provider
OpenRouter
OpenRouter
Context Window
256K tokens
262K tokens
Max Output Tokens
128K tokens
16K tokens
Input Pricing (per 1M tokens)
Free
$0.60
Output Pricing (per 1M tokens)
Free
$2.50
Release Date
Jul 2025
Sep 2025

Capabilities

Capability
Horizon Alpha
Kimi K2 Instruct 0905
Text Generation
Vision
Function Calling
File Attachments

Which Model Should You Choose?

Choose Horizon Alpha if:

  • • Cost efficiency is a priority

Choose Kimi K2 Instruct 0905 if:

  • • You need a larger context window
  • • You prefer open weights