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Nova 2 Pro vs Solar Pro 4

Solar Pro 4 leads the LLM Stats Score 35.1 to 30.8.

Amazon · Upstage · Updated for 2026

Which is better?

Solar Pro 4 leads the overall LLM Stats Score 35.1 to 30.8, ranking #96 overall.

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

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

Choose Nova 2 Pro

  • you are already invested in the Amazon ecosystem

Choose Solar Pro 4

  • overall performance matters — it scores 35.1 and ranks #96 on LLM Stats
  • you value its reported benchmark strengths — it wins 4 of 4 exact shared results
  • you want the most recent training data — it shipped Aug 2026

At a glance

The differences that matter most.

Nova 2 Pro
Amazon
Solar Pro 4
Upstage
Core performance indexes
LLM Stats Score
30.8
#124
35.1
#96
Reasoning
30.7
#124
34.7
#91
Coding
19.4
#113
21.0
#99
Agents
11.9
#113
11.5
#115
Cost, coverage & limits
Benchmark wins
0 of 4
4 of 4
Input price
— / M
$0.30 / M
Output price
— / M
$1.20 / M
Context window
—
524,288

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Nova 2 Pro
Solar Pro 4
Math
25.9#107
32.3#61
Tool use
15.2#95
8.7#141
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

18 reported for Nova 2 Pro · 9 for Solar Pro 4

4 shared

Nova 2 Pro outperforms in 0 benchmarks, while Solar Pro 4 is better at 4 benchmarks (GPQA, LiveCodeBench, MMLU-Pro, SWE-Bench Verified).

Solar Pro 4 significantly outperforms across most benchmarks.

Mon Oct 05 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Solar Pro 4 specifies input context (524,288 tokens). Only Solar Pro 4 specifies output context (131,072 tokens).

Amazon
Nova 2 Pro
Input- tokens
Output- tokens
Upstage
Solar Pro 4
Input524,288 tokens
Output131,072 tokens
Mon Oct 05 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Nova 2 Pro supports multimodal inputs, whereas Solar Pro 4 does not.

Nova 2 Pro can handle both text and other forms of data like images, making it suitable for multimodal applications.

Nova 2 Pro

Text
Images
Audio
Video

Solar Pro 4

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Nova 2 Pro

Proprietary

Closed source

Solar Pro 4

Proprietary

Closed source

Release Timeline

When each model was launched

Nova 2 Pro was released on 2025-12-02, while Solar Pro 4 was released on 2026-08-06.

Solar Pro 4 is 8 months newer than Nova 2 Pro.

Nova 2 Pro

Dec 2, 2025

10 months ago

Solar Pro 4

Aug 6, 2026

2 months ago

8mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Nova 2 Pro and Solar Pro 4 side-by-side, then vote on the output you prefer.

Nova 2 Pro
✓ Preferred
Solar Pro 4
Open in Playground

FAQ

Common questions about Nova 2 Pro vs Solar Pro 4.

Which is better, Nova 2 Pro or Solar Pro 4?

Solar Pro 4 leads the LLM Stats Score 35.1 to 30.8. Nova 2 Pro is made by Amazon and Solar Pro 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 Nova 2 Pro compare to Solar Pro 4 in benchmarks?

Nova 2 Pro scores Tau2 Telecom: 92.7%, AIME 2025: 92.3%, ScreenSpot: 88.1%, LongCodeBench: 84.0%, MMLU-Pro: 81.6%. Solar Pro 4 scores AIME 2026: 95.3%, GPQA: 89.0%, LiveCodeBench: 87.8%, MMLU-Pro: 86.3%, AA-LCR: 71.0%.

What are the context window sizes for Nova 2 Pro and Solar Pro 4?

Nova 2 Pro supports an unknown number of tokens and Solar Pro 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 Nova 2 Pro and Solar Pro 4?

Key differences include LLM Stats Score (30.8 vs 35.1), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes Nova 2 Pro and Solar Pro 4?

Nova 2 Pro is developed by Amazon and Solar Pro 4 is developed by Upstage.

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