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MiMo-V2.6-Pro vs Nemotron 3 Ultra (550B A55B)

MiMo-V2.6-Pro leads the LLM Stats Score 49.8 to 36.2. MiMo-V2.6-Pro is 1.7x cheaper per token.

Xiaomi · NVIDIA · Updated for 2026

Which is better?

MiMo-V2.6-Pro leads the overall LLM Stats Score 49.8 to 36.2, ranking #19 overall.

In the 1 individual benchmarks reported for both models, MiMo-V2.6-Pro wins 1; this is a narrower head-to-head signal than the composite indexes.

On price, MiMo-V2.6-Pro is roughly 1.7x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

MiMo-V2.6-Pro also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose MiMo-V2.6-Pro

  • overall performance matters — it scores 49.8 and ranks #19 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • cost matters — it's about 1.7x cheaper per token
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Sep 2026

Choose Nemotron 3 Ultra (550B A55B)

  • you want predictable pricing at $0.50/M input and $2.20/M output

At a glance

The differences that matter most.

MiMo-V2.6-Pro
Xiaomi
Nemotron 3 Ultra (550B A55B)
NVIDIA
Core performance indexes
LLM Stats Score
49.8
#19
36.2
#82
Reasoning
45.2
#30
35.4
#85
Coding
41.8
#9
21.0
#97
Agents
37.5
#13
12.4
#105
Cost, coverage & limits
Benchmark wins
1 of 1
0 of 1
Input price
$0.43 / M
$0.50 / M
Output price
$0.87 / M
$2.20 / M
Context window
1,048,576
262,144

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
MiMo-V2.6-Pro
Nemotron 3 Ultra (550B A55B)
Tool use
28.0#21
0.5#178
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

18 reported for MiMo-V2.6-Pro · 26 for Nemotron 3 Ultra (550B A55B)

1 shared

MiMo-V2.6-Pro outperforms in 1 benchmarks (Terminal-Bench 2.1), while Nemotron 3 Ultra (550B A55B) is better at 0 benchmarks.

MiMo-V2.6-Pro significantly outperforms across most benchmarks.

Tue Sep 22 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

MiMo-V2.6-Pro costs less

For input processing, MiMo-V2.6-Pro ($0.43/1M tokens) is 1.1x cheaper than Nemotron 3 Ultra (550B A55B) ($0.50/1M tokens).

For output processing, MiMo-V2.6-Pro ($0.87/1M tokens) is 2.5x cheaper than Nemotron 3 Ultra (550B A55B) ($2.20/1M tokens).

In conclusion, Nemotron 3 Ultra (550B A55B) is more expensive than MiMo-V2.6-Pro.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Tue Sep 22 2026 • llm-stats.com
Xiaomi
MiMo-V2.6-Pro
Input tokens$0.43
Output tokens$0.87
Best providerXiaomi
NVIDIA
Nemotron 3 Ultra (550B A55B)
Input tokens$0.50
Output tokens$2.20
Best providerDeepinfra
Notice missing or incorrect data?Start an Issue→

Model Size

Parameter count comparison

470.0B diff

MiMo-V2.6-Pro has 470.0B more parameters than Nemotron 3 Ultra (550B A55B), making it 85.5% larger.

Xiaomi
MiMo-V2.6-Pro
1.0Tparameters
NVIDIA
Nemotron 3 Ultra (550B A55B)
550.0Bparameters
1020.0B
MiMo-V2.6-Pro
550.0B
Nemotron 3 Ultra (550B A55B)

Context Window

Maximum input and output token capacity

MiMo-V2.6-Pro accepts 1,048,576 input tokens compared to Nemotron 3 Ultra (550B A55B)'s 262,144 tokens. Only Nemotron 3 Ultra (550B A55B) specifies output context (262,144 tokens).

Xiaomi
MiMo-V2.6-Pro
Input1,048,576 tokens
Output- tokens
NVIDIA
Nemotron 3 Ultra (550B A55B)
Input262,144 tokens
Output262,144 tokens
Tue Sep 22 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

MiMo-V2.6-Pro supports multimodal inputs, whereas Nemotron 3 Ultra (550B A55B) does not.

MiMo-V2.6-Pro can handle both text and other forms of data like images, making it suitable for multimodal applications.

MiMo-V2.6-Pro

Text
Images
Audio
Video

Nemotron 3 Ultra (550B A55B)

Text
Images
Audio
Video

License

Usage and distribution terms

MiMo-V2.6-Pro is licensed under MIT, while Nemotron 3 Ultra (550B A55B) uses OpenMDW License v1.1.

License differences may affect how you can use these models in commercial or open-source projects.

MiMo-V2.6-Pro

MIT

Open weights

Nemotron 3 Ultra (550B A55B)

OpenMDW License v1.1

Open weights

Release Timeline

When each model was launched

MiMo-V2.6-Pro was released on 2026-09-22, while Nemotron 3 Ultra (550B A55B) was released on 2026-06-04.

MiMo-V2.6-Pro is 4 months newer than Nemotron 3 Ultra (550B A55B).

MiMo-V2.6-Pro

Sep 22, 2026

0 days ago

3mo newer
Nemotron 3 Ultra (550B A55B)

Jun 4, 2026

3 months ago

Knowledge Cutoff

When training data ends

Nemotron 3 Ultra (550B A55B) has a documented knowledge cutoff of 2025-09-30, while MiMo-V2.6-Pro's cutoff date is not specified.

We can confirm Nemotron 3 Ultra (550B A55B)'s training data extends to 2025-09-30, but cannot make a direct comparison without MiMo-V2.6-Pro's cutoff date.

MiMo-V2.6-Pro

—

Nemotron 3 Ultra (550B A55B)

Sep 2025

Provider Availability

MiMo-V2.6-Pro is available from Xiaomi. Nemotron 3 Ultra (550B A55B) is available from DeepInfra.

MiMo-V2.6-Pro

xiaomi logo
Xiaomi
Input Price:Input: $0.43/1MOutput Price:Output: $0.87/1M

Nemotron 3 Ultra (550B A55B)

deepinfra logo
Deepinfra
Input Price:Input: $0.50/1MOutput Price:Output: $2.20/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against MiMo-V2.6-Pro and Nemotron 3 Ultra (550B A55B) side-by-side, then vote on the output you prefer.

MiMo-V2.6-Pro
✓ Preferred
Nemotron 3 Ultra (550B A55B)
Open in Playground

FAQ

Common questions about MiMo-V2.6-Pro vs Nemotron 3 Ultra (550B A55B).

Which is better, MiMo-V2.6-Pro or Nemotron 3 Ultra (550B A55B)?

MiMo-V2.6-Pro leads the LLM Stats Score 49.8 to 36.2. MiMo-V2.6-Pro is made by Xiaomi and Nemotron 3 Ultra (550B A55B) is made by NVIDIA. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does MiMo-V2.6-Pro compare to Nemotron 3 Ultra (550B A55B) in benchmarks?

MiMo-V2.6-Pro scores CyberGym: 94.0%, Terminal-Bench 2.1: 89.9%, OSWorld-Verified: 82.0%, MiMo Cyber Bench: 81.7%, Toolathlon-Verified: 76.9%. Nemotron 3 Ultra (550B A55B) scores RULER: 94.7%, IMO-AnswerBench: 92.3%, PinchBench: 90.0%, LiveCodeBench v6: 89.0%, GPQA: 87.0%.

Is MiMo-V2.6-Pro cheaper than Nemotron 3 Ultra (550B A55B)?

MiMo-V2.6-Pro is 1.1x cheaper for input tokens. MiMo-V2.6-Pro costs $0.43/M input and $0.87/M output via xiaomi. Nemotron 3 Ultra (550B A55B) costs $0.50/M input and $2.20/M output via deepinfra.

What are the context window sizes for MiMo-V2.6-Pro and Nemotron 3 Ultra (550B A55B)?

MiMo-V2.6-Pro supports 1.0M tokens and Nemotron 3 Ultra (550B A55B) supports 262K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between MiMo-V2.6-Pro and Nemotron 3 Ultra (550B A55B)?

Key differences include LLM Stats Score (49.8 vs 36.2), context window (1.0M vs 262K), input pricing ($0.43 vs $0.50/M), multimodal support (yes vs no), licensing (MIT vs OpenMDW License v1.1). See the full comparison above for benchmark-by-benchmark results.

Who makes MiMo-V2.6-Pro and Nemotron 3 Ultra (550B A55B)?

MiMo-V2.6-Pro is developed by Xiaomi and Nemotron 3 Ultra (550B A55B) is developed by NVIDIA.

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