GPT-5.1 vs MiMo-V2-Omni

Compare GPT-5.1 by OpenAI against MiMo-V2-Omni by Xiaomi, context windows of 400K vs 262K, tested across 51 shared challenges. Updated March 2026.

Which is better, GPT-5.1 or MiMo-V2-Omni?

GPT-5.1 and MiMo-V2-Omni are both competitive models. GPT-5.1 costs $1.25/M input tokens vs $0.4/M for MiMo-V2-Omni. Context windows: 400K vs 262K tokens. Compare their real outputs side by side below.

Key Differences Between GPT-5.1 and MiMo-V2-Omni

GPT-5.1 is made by openai while MiMo-V2-Omni is from xiaomi. GPT-5.1 has a 400K token context window compared to MiMo-V2-Omni's 262K. On pricing, GPT-5.1 costs $1.25/M input tokens vs $0.4/M for MiMo-V2-Omni.

Our Verdict
GPT-5.1
GPT-5.1
MiMo-V2-Omni
MiMo-V2-OmniRunner-up

No community votes yet. On paper, GPT-5.1 has the edge — bigger model tier, bigger context window, major provider backing.

MiMo-V2-Omni is 5.0x cheaper per token — worth considering if cost matters.

Too close to call
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