GPT OSS 120B vs MoonshotAI: Kimi K2 0905
Compare GPT OSS 120B by OpenAI against MoonshotAI: Kimi K2 0905 by Moonshot AI, context windows of 131K vs 262K, tested across 54 shared challenges. Updated June 2026.
Which is better, GPT OSS 120B or MoonshotAI: Kimi K2 0905?
GPT OSS 120B and MoonshotAI: Kimi K2 0905 are both competitive models. GPT OSS 120B costs $0.18/M input tokens vs $0.6/M for MoonshotAI: Kimi K2 0905. Context windows: 131K vs 262K tokens. Compare their real outputs side by side below.
Key Differences Between GPT OSS 120B and MoonshotAI: Kimi K2 0905
GPT OSS 120B is made by openai while MoonshotAI: Kimi K2 0905 is from moonshotai. GPT OSS 120B has a 131K token context window compared to MoonshotAI: Kimi K2 0905's 262K. On pricing, GPT OSS 120B costs $0.18/M input tokens vs $0.6/M for MoonshotAI: Kimi K2 0905.
Per 1M tokens
GPT OSS 120B is cheaper on both — 3.3× input, 3.1× output
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
GPT OSS 120B is 3.1x cheaper per token — worth considering if cost matters.
Style Comparison
GPT OSS 120B uses 3.0x more transitions
