AI Models · Open-Source vs Paid

XIMiMo-V2.5-Pro Open vs GPT-4o Paid

MiMo-V2.5-Pro vs GPT-4o compared — price per token, context window, multimodality, openness and which to choose. Can the open-source model replace the paid one? Full 2026 breakdown.

Prices & specs refreshed from live data · olud.ai

Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.

Choose MiMo-V2.5-Pro if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose GPT-4o if you want frontier capability through a managed API with zero infrastructure to run.

MiMo-V2.5-Pro vs GPT-4o specs

SpecMiMo-V2.5-ProGPT-4o
MakerXiaomiOpenAI
TypeOpen-weightProprietary
Context window1.1M tokens128K tokens
Input price$0.44/M · free self-host$2.5/M
Output price$0.87/M · free self-host$10/M
Vision / multimodalNoYes
Tool / function callingYesYes
Self-hostableYesNo (API only)
LicenseOpen weightsProprietary

Feature comparison

CapabilityMiMo-V2.5-ProGPT-4o
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: MiMo-V2.5-Pro vs GPT-4o

Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).

MiMo-V2.5-Pro
GPT-4o
Intelligence index
42.2
12.3
Coding index
60.2
GPQA
86.6%
65.5%
Humanity's Last Exam
33.8%
5%
Long Context Reasoning
73.3%
SciCode
50.2%
36.6%
IFBench
79.9%
τ²-Bench
94.2%
τ-Bench Banking
8.7%
Terminal-Bench
65.2%
Terminal-Bench Hard
43.2%
Math index
25.7
MMLU-Pro
80.3%
LiveCodeBench
42.5%
MATH-500
89.3%
AIME
32.7%
AIME 2025
25.7%
Speed
62.9 tok/s
0 tok/s
Latency
1.9s
0s
Intelligence per $
77.6

Benchmark data by Artificial Analysis.

How MiMo-V2.5-Pro and GPT-4o score

🏆 Best value & openness: MiMo-V2.5-Pro (4.7 vs 2.9 / 5)
CriterionMiMo-V2.5-ProGPT-4o
Cost-efficiency5.03.5
Context window5.03.5
Openness5.01.5
Self-hosting5.01.0
Multimodality3.55.0

Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.

What each model is

MiMo-V2.5-Pro Open

Xiaomi · Open-weight

MiMo-V2.5-Pro is Xiaomi’s flagship model, delivering strong performance in general agentic capabilities, complex software engineering, and long-horizon tasks, with top rankings on benchmarks such as ClawEval, GDPVal, and SWE-bench Pro....

GPT-4o Paid

OpenAI · Proprietary

GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of [GPT-4 Turbo](/models/openai/gpt-4-turbo) while being twice as...

Other models in these families

These variants are tracked but not compared here — one page per family keeps the comparison readable.

Other variants tracked
MiMo-V2.5

Frequently asked questions

Is MiMo-V2.5-Pro as good as GPT-4o?

MiMo-V2.5-Pro is open-weight and competitive on many tasks, but GPT-4o may still lead on the hardest reasoning and agentic work. The gap keeps narrowing — benchmark both on your actual use case before deciding.

Can I run MiMo-V2.5-Pro locally?

Yes. MiMo-V2.5-Pro has open weights, so you can self-host it on your own GPUs or run it via a low-cost API. GPT-4o is API-only and cannot be self-hosted.

How much cheaper is MiMo-V2.5-Pro?

MiMo-V2.5-Pro costs $0.87/M output vs $10/M for GPT-4o — roughly 11x cheaper via API, and free if you self-host.

MiMo-V2.5-Pro vs GPT-4o — which should I pick in 2026?

Choose MiMo-V2.5-Pro if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose GPT-4o if you want frontier capability through a managed API with zero infrastructure to run.

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