GPT-4o (Omni) vs MoonshotAI: Kimi K2 0905
Compare GPT-4o (Omni) by OpenAI against MoonshotAI: Kimi K2 0905 by Moonshot AI, context windows of 128K vs 262K, tested across 54 shared challenges. Updated May 2026.
Which is better, GPT-4o (Omni) or MoonshotAI: Kimi K2 0905?
GPT-4o (Omni) and MoonshotAI: Kimi K2 0905 are both competitive models. GPT-4o (Omni) costs $2.5/M input tokens vs $0.6/M for MoonshotAI: Kimi K2 0905. Context windows: 128K vs 262K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-4o (Omni) and MoonshotAI: Kimi K2 0905
GPT-4o (Omni) is made by openai while MoonshotAI: Kimi K2 0905 is from moonshotai. GPT-4o (Omni) has a 128K token context window compared to MoonshotAI: Kimi K2 0905's 262K. On pricing, GPT-4o (Omni) costs $2.5/M input tokens vs $0.6/M for MoonshotAI: Kimi K2 0905.
Per 1M tokens
MoonshotAI: Kimi K2 0905 is cheaper on both — 4.2× input, 4.0× output
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
MoonshotAI: Kimi K2 0905 is 4.0x cheaper per token — worth considering if cost matters.
Style Comparison
MoonshotAI: Kimi K2 0905 uses 5.8x more emoji
