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Model comparison

NVIDIA Nemotron 3 Ultra vs Xiaomi MiMo-V2.5-Pro

NVIDIA against Xiaomi, compared on context, price, and verified benchmark results.

Catalog record checked September 2, 2026Individual provider fields may changeEvidence confidence: High — see receipts below

NVIDIA

NVIDIA Nemotron 3 Ultra

Frontier · Open weights

vs

Xiaomi

Xiaomi MiMo-V2.5-Pro

Frontier · Open weights

AI model capability comparison
SpecificationNVIDIA Nemotron 3 UltraXiaomi MiMo-V2.5-Pro
ProviderNVIDIAXiaomi
TierFrontierFrontier
Context window1M1M
Max outputNot verifiedUnverifiedNot verifiedUnverified
Input / 1M tokensWinner: $0.50$1
Output / 1M tokensWinner: $2.20$3
WeightsOpenOpen
Parameters550B total / 55B active (MoE)1.02T total / 42B active (MoE)
Reasoning levelslow, high, maxlow, high, max
Modalitiestexttext, image
LicenseNot disclosedUnverifiedMIT
API model idnemotron-3-ultra-550b-a55bmimo-v2-5-pro
ReleasedJune 4, 2026April 22, 2026
Artificial Analysis Intelligence Index (2026-08-14)Winner: 5452

Prices are USD per million tokens at standard rates, excluding batch and caching discounts. Bold indicates the better figure where one is objectively better. Values we could not confirm from the provider are shown as “Not verified” rather than estimated.

Benchmark receipts

  • 2026-08-14: Artificial AnalysisComposite index blending reasoning, knowledge, and coding evals into one 0–100 score. Comparability: directly comparable — AA occasionally rebaselines the index scale between snapshots — a score captured on one date is only comparable to same-snapshot scores (check measuredAt).

Pricing tiers: NVIDIA Nemotron 3 Ultra: Open weights (weights + data + recipes); $0.50/$2.20 per MTok is the third-party hosted rate (OpenRouter). 550B/55B MoE. · Xiaomi MiMo-V2.5-Pro: $1.00/$3.00 per MTok up to 256K prompt; $2.00/$6.00 above 256K (to 1M). Open weights (MIT). 1.02T/42B active MoE, native multimodal.

FrontierOpen weightsRecord checked September 2, 2026

NVIDIA Nemotron 3 Ultra

Nemotron 3 Ultra is NVIDIA's open-weight (550B/55B) frontier MoE with a 1M-token context.

Best for

  • Open-weight frontier
  • Self-hosting on NVIDIA GPUs
  • Reasoning

Watch out

Top US open-weight until Thinking Machines Inkling; verify hosted pricing.

FrontierOpen weightsRecord checked September 2, 2026

Xiaomi MiMo-V2.5-Pro

MiMo-V2.5-Pro is Xiaomi's open-weight (MIT) 1.02T MoE with native multimodal and a 1M context.

Best for

  • Open-weight frontier
  • Multimodal
  • Long-context

Watch out

Verify weights/pricing on your endpoint.

When the cheaper one wins

NVIDIA Nemotron 3 Ultra is cheaper on output at $2.20 per million tokens against $3 for Xiaomi MiMo-V2.5-Pro — about 1.4×. Use the cheaper tier for classification, extraction, summarisation, and any task where the expensive model’s extra score does not change the accepted output. The expensive one only pays if your hardest task actually fails on the cheap tier. These are standard-tier API rates, excluding batch and cache discounts.

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Evidence confidence: High

How strong and complete the evidence behind this comparison is — not a prediction of which model is better.

  • Pricing verified on both sides — Input and output rates are verified for both models.
  • 4/5 core specs verified on both sides — Not published for at least one side: max output.
  • 1 shared named benchmark with differing scores — Measured on: Artificial Analysis Intelligence Index.
  • Verified within the last 90 days — Newest catalog check was 9 days ago.
  • Both models carry source citations — Each side has at least two catalog sources on record.

Source receipts

Each catalog figure was checked against the provider or an independent second source on the date shown.

Related comparisons

Diving deeper on one model? NVIDIA Nemotron 3 Ultra · Xiaomi MiMo-V2.5-Pro

Common questions

NVIDIA Nemotron 3 Ultra vs Xiaomi MiMo-V2.5-Pro

Answered from the verified figures on this page rather than general guidance.

Is NVIDIA Nemotron 3 Ultra or Xiaomi MiMo-V2.5-Pro cheaper for input?

NVIDIA Nemotron 3 Ultra is cheaper at $0.50 per million input tokens, against $1 for Xiaomi MiMo-V2.5-Pro — roughly 2.0× the price. Output tokens usually dominate a real bill, so weigh the output rate more heavily than the input rate. These are base rates; NVIDIA Nemotron 3 Ultra has tiered pricing: Open weights (weights + data + recipes); $0.50/$2.20 per MTok is the third-party hosted rate (OpenRouter). 550B/55B MoE. Xiaomi MiMo-V2.5-Pro has tiered pricing: $1.00/$3.00 per MTok up to 256K prompt; $2.00/$6.00 above 256K (to 1M). Open weights (MIT). 1.02T/42B active MoE, native multimodal.

Is NVIDIA Nemotron 3 Ultra or Xiaomi MiMo-V2.5-Pro cheaper for output?

NVIDIA Nemotron 3 Ultra is cheaper at $2.20 per million output tokens, against $3 for Xiaomi MiMo-V2.5-Pro — roughly 1.4× the price. Output tokens usually dominate a real bill, so weigh the output rate more heavily than the input rate. These are base rates; NVIDIA Nemotron 3 Ultra has tiered pricing: Open weights (weights + data + recipes); $0.50/$2.20 per MTok is the third-party hosted rate (OpenRouter). 550B/55B MoE. Xiaomi MiMo-V2.5-Pro has tiered pricing: $1.00/$3.00 per MTok up to 256K prompt; $2.00/$6.00 above 256K (to 1M). Open weights (MIT). 1.02T/42B active MoE, native multimodal.

Which has the larger context window, NVIDIA Nemotron 3 Ultra or Xiaomi MiMo-V2.5-Pro?

Both accept about 1M tokens of context, so document length will not decide between them.

Do NVIDIA Nemotron 3 Ultra and Xiaomi MiMo-V2.5-Pro support the same reasoning levels?

Yes — both accept the same effort settings: "low", "high", "max". Higher effort costs more and takes longer, so start low and raise it only where output quality actually improves.

Should I use NVIDIA Nemotron 3 Ultra or Xiaomi MiMo-V2.5-Pro?

Both sit in the frontier tier, so the choice usually comes down to price and context rather than capability. NVIDIA Nemotron 3 Ultra suits open-weight frontier; Xiaomi MiMo-V2.5-Pro suits open-weight frontier.

Next step

Choosing between them

The verified figures that separate this pair, computed from the catalog rather than restated boilerplate.

  • Input price: NVIDIA Nemotron 3 Ultra costs $0.50 per 1M tokens versus $1 for Xiaomi MiMo-V2.5-Pro — a 2x difference at the headline tier.
  • Measured capability: NVIDIA Nemotron 3 Ultra leads Artificial Analysis Intelligence Index 54 to 52 (measured 2026-08-14).
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