AI Models · Open-Source vs Paid

XIMiMo-V2.5-Pro Open vs o4 Mini Paid

MiMo-V2.5-Pro vs o4 Mini 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 o4 Mini if you want frontier capability through a managed API with zero infrastructure to run.

MiMo-V2.5-Pro vs o4 Mini specs

SpecMiMo-V2.5-Proo4 Mini
MakerXiaomiOpenAI
TypeOpen-weightProprietary
Context window1.1M tokens200K tokens
Input price$0.44/M · free self-host$1.1/M
Output price$0.87/M · free self-host$4.4/M
Vision / multimodalNoYes
Tool / function callingYesYes
Self-hostableYesNo (API only)
LicenseOpen weightsProprietary

Feature comparison

CapabilityMiMo-V2.5-Proo4 Mini
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: MiMo-V2.5-Pro vs o4 Mini

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

MiMo-V2.5-Pro delivers 5.8× more intelligence per dollar.
MiMo-V2.5-Pro
o4 Mini
Intelligence index
42.2
25.6
Coding index
60.2
GPQA
86.6%
78.4%
Humanity's Last Exam
33.8%
17.5%
Long Context Reasoning
73.3%
55%
SciCode
50.2%
46.5%
IFBench
79.9%
68.7%
τ²-Bench
94.2%
55.6%
τ-Bench Banking
8.7%
Terminal-Bench
65.2%
Terminal-Bench Hard
43.2%
15.2%
Math index
90.7
MMLU-Pro
83.2%
LiveCodeBench
85.9%
MATH-500
98.9%
AIME
94%
AIME 2025
90.7%
Speed
62.9 tok/s
0 tok/s
Latency
1.9s
0s
Intelligence per $
77.6
13.3

Benchmark data by Artificial Analysis.

How MiMo-V2.5-Pro and o4 Mini score

🏆 Best value & openness: MiMo-V2.5-Pro (4.7 vs 3.1 / 5)
CriterionMiMo-V2.5-Proo4 Mini
Cost-efficiency5.04.0
Context window5.04.0
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....

o4 Mini Paid

OpenAI · Proprietary

OpenAI o4-mini is a compact reasoning model in the o-series, optimized for fast, cost-efficient performance while retaining strong multimodal and agentic capabilities. It supports tool use and demonstrates competitive reasoning...

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
Other variants tracked
o4 Mini Higho4 Mini Deep Research

Frequently asked questions

Is MiMo-V2.5-Pro as good as o4 Mini?

MiMo-V2.5-Pro is open-weight and competitive on many tasks, but o4 Mini 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. o4 Mini 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 $4.4/M for o4 Mini — roughly 5x cheaper via API, and free if you self-host.

MiMo-V2.5-Pro vs o4 Mini — 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 o4 Mini if you want frontier capability through a managed API with zero infrastructure to run.

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