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Nemotron 3 Ultra (550B A55B) vs Solar Mini 4

Nemotron 3 Ultra (550B A55B) and Solar Mini 4 are closely matched at 36.0 and 31.9 on the LLM Stats Score. Solar Mini 4 is 5.3x cheaper per token.

NVIDIA · Upstage · Updated for 2026

Which is better?

Nemotron 3 Ultra (550B A55B) and Solar Mini 4 are closely matched on the overall LLM Stats Score at 36.0 and 31.9.

In the 2 individual benchmarks reported for both models, Solar Mini 4 wins 2; this is a narrower head-to-head signal than the composite indexes.

On price, Solar Mini 4 is roughly 5.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Solar Mini 4 also accepts a larger context window (524,288 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 Nemotron 3 Ultra (550B A55B)

  • you need open weights you can self-host or fine-tune

Choose Solar Mini 4

  • you value its reported benchmark strengths — it wins 2 of 2 exact shared results
  • cost matters — it's about 5.3x cheaper per token
  • you process long inputs — it offers a 524,288 token context window
  • you want the most recent training data — it shipped Sep 2026

At a glance

The differences that matter most.

Nemotron 3 Ultra (550B A55B)
NVIDIA
Solar Mini 4
Upstage
Core performance indexes
LLM Stats Score
36.0
#93
31.9
#122
Reasoning
35.1
#95
31.7
#120
Coding
20.4
#108
17.1
#135
Agents
12.0
#118
2.6
#179
Cost, coverage & limits
Benchmark wins
0 of 2
2 of 2
Input price
$0.50 / M
$0.10 / M
Output price
$2.20 / M
$0.40 / M
Context window
262,144
524,288

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Nemotron 3 Ultra (550B A55B)
Solar Mini 4
Math
36.2#40
25.5#113
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

26 reported for Nemotron 3 Ultra (550B A55B) · 6 for Solar Mini 4

2 shared

Nemotron 3 Ultra (550B A55B) outperforms in 0 benchmarks, while Solar Mini 4 is better at 2 benchmarks (AA-LCR, SciCode).

Solar Mini 4 significantly outperforms across most benchmarks.

Thu Oct 08 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Solar Mini 4 costs less

For input processing, Nemotron 3 Ultra (550B A55B) ($0.50/1M tokens) is 5.0x more expensive than Solar Mini 4 ($0.10/1M tokens).

For output processing, Nemotron 3 Ultra (550B A55B) ($2.20/1M tokens) is 5.5x more expensive than Solar Mini 4 ($0.40/1M tokens).

In conclusion, Nemotron 3 Ultra (550B A55B) is more expensive than Solar Mini 4.*

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

Lowest available price from all providers
Thu Oct 08 2026 • llm-stats.com
NVIDIA
Nemotron 3 Ultra (550B A55B)
Input tokens$0.50
Output tokens$2.20
Best providerDeepinfra
Upstage
Solar Mini 4
Input tokens$0.10
Output tokens$0.40
Best providerUnknown Organization
Notice missing or incorrect data?

Model Size

Parameter count comparison

515.0B diff

Nemotron 3 Ultra (550B A55B) has 515.0B more parameters than Solar Mini 4, making it 1471.4% larger.

NVIDIA
Nemotron 3 Ultra (550B A55B)
550.0Bparameters
Upstage
Solar Mini 4
35.0Bparameters
550.0B
Nemotron 3 Ultra (550B A55B)
35.0B
Solar Mini 4

Context Window

Maximum input and output token capacity

Solar Mini 4 accepts 524,288 input tokens compared to Nemotron 3 Ultra (550B A55B)'s 262,144 tokens. Nemotron 3 Ultra (550B A55B) can generate longer responses up to 262,144 tokens, while Solar Mini 4 is limited to 131,072 tokens.

NVIDIA
Nemotron 3 Ultra (550B A55B)
Input262,144 tokens
Output262,144 tokens
Upstage
Solar Mini 4
Input524,288 tokens
Output131,072 tokens
Thu Oct 08 2026 • llm-stats.com

License

Usage and distribution terms

Nemotron 3 Ultra (550B A55B) is licensed under OpenMDW License v1.1, while Solar Mini 4 uses a proprietary license.

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

Nemotron 3 Ultra (550B A55B)

OpenMDW License v1.1

Open weights

Solar Mini 4

Proprietary

Closed source

Release Timeline

When each model was launched

Nemotron 3 Ultra (550B A55B) was released on 2026-06-04, while Solar Mini 4 was released on 2026-09-22.

Solar Mini 4 is 4 months newer than Nemotron 3 Ultra (550B A55B).

Nemotron 3 Ultra (550B A55B)

Jun 4, 2026

4 months ago

Solar Mini 4

Sep 22, 2026

2 weeks ago

3mo newer

Knowledge Cutoff

When training data ends

Nemotron 3 Ultra (550B A55B) has a knowledge cutoff of 2025-09-30, while Solar Mini 4 has a cutoff of 2026-02-01.

Solar Mini 4 has more recent training data (up to 2026-02-01), making it potentially better informed about events through that date compared to Nemotron 3 Ultra (550B A55B) (2025-09-30).

Nemotron 3 Ultra (550B A55B)

Sep 2025

Solar Mini 4

Feb 2026

5 mo newer

Provider Availability

Nemotron 3 Ultra (550B A55B) is available from DeepInfra. Solar Mini 4 is available from Upstage.

Nemotron 3 Ultra (550B A55B)

deepinfra logo
Deepinfra
Input Price:Input: $0.50/1MOutput Price:Output: $2.20/1M

Solar Mini 4

upstage logo
Unknown Organization
Input Price:Input: $0.10/1MOutput Price:Output: $0.40/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Nemotron 3 Ultra (550B A55B) and Solar Mini 4 side-by-side, then vote on the output you prefer.

Nemotron 3 Ultra (550B A55B)
✓ Preferred
Solar Mini 4
Open in Playground

FAQ

Common questions about Nemotron 3 Ultra (550B A55B) vs Solar Mini 4.

Which is better, Nemotron 3 Ultra (550B A55B) or Solar Mini 4?

Nemotron 3 Ultra (550B A55B) and Solar Mini 4 are closely matched on the LLM Stats Score at 36.0 and 31.9. Nemotron 3 Ultra (550B A55B) is made by NVIDIA and Solar Mini 4 is made by Upstage. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Nemotron 3 Ultra (550B A55B) compare to Solar Mini 4 in benchmarks?

Nemotron 3 Ultra (550B A55B) scores RULER: 94.7%, IMO-AnswerBench: 92.3%, PinchBench: 90.0%, LiveCodeBench v6: 89.0%, GPQA: 87.0%. Solar Mini 4 scores AA-LCR: 83.3%, SciCode: 47.6%, GDPval-AA 2.1: 35.7%, AA-Briefcase v1.1: 29.1%, Humanity's Last Exam (no tools, text-only): 25.8%.

Is Nemotron 3 Ultra (550B A55B) cheaper than Solar Mini 4?

Solar Mini 4 is 5.0x cheaper for input tokens. Nemotron 3 Ultra (550B A55B) costs $0.50/M input and $2.20/M output via deepinfra. Solar Mini 4 costs $0.10/M input and $0.40/M output via upstage.

What are the context window sizes for Nemotron 3 Ultra (550B A55B) and Solar Mini 4?

Nemotron 3 Ultra (550B A55B) supports 262K tokens and Solar Mini 4 supports 524K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Nemotron 3 Ultra (550B A55B) and Solar Mini 4?

Key differences include LLM Stats Score (36.0 vs 31.9), context window (262K vs 524K), input pricing ($0.50 vs $0.10/M), licensing (OpenMDW License v1.1 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Nemotron 3 Ultra (550B A55B) and Solar Mini 4?

Nemotron 3 Ultra (550B A55B) is developed by NVIDIA and Solar Mini 4 is developed by Upstage.

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