The AI arena is free today

Open Superagent

Gemini 3.7 Flash vs Solar Pro 4

Gemini 3.7 Flash significantly outperforms across most benchmarks. Solar Pro 4 is 2.9x cheaper per token.

Google · Upstage · Updated for 2026

Which is better?

Gemini 3.7 Flash outperforms in 1 benchmarks (Terminal-Bench 2.1), while Solar Pro 4 is better at 0 benchmarks. Gemini 3.7 Flash significantly outperforms across most benchmarks.

On price, Solar Pro 4 is roughly 2.9x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Gemini 3.7 Flash 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 benchmark, pricing, and model metadata for 2026.

Choose Gemini 3.7 Flash

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Aug 2026

Choose Solar Pro 4

  • cost matters — it's about 2.9x cheaper per token

At a glance

The differences that matter most.

Benchmark wins
1 of 1
0 of 1
Input price
$0.75 / M
$0.30 / M
Output price
$3.75 / M
$1.20 / M
Context window
1,048,576
524,288
Released
Aug 2026
Aug 2026
License
Proprietary
Proprietary

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Gemini 3.7 Flash outperforms in 1 benchmarks (Terminal-Bench 2.1), while Solar Pro 4 is better at 0 benchmarks.

Gemini 3.7 Flash significantly outperforms across most benchmarks.

Tue Aug 25 2026 • llm-stats.com

Arena Performance

Playground indexes and blind preference scores

Pricing Analysis

Price comparison per million tokens

Solar Pro 4 costs less

For input processing, Gemini 3.7 Flash ($0.75/1M tokens) is 2.5x more expensive than Solar Pro 4 ($0.30/1M tokens).

For output processing, Gemini 3.7 Flash ($3.75/1M tokens) is 3.1x more expensive than Solar Pro 4 ($1.20/1M tokens).

In conclusion, Gemini 3.7 Flash is more expensive than Solar Pro 4.*

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

Lowest available price from all providers
Tue Aug 25 2026 • llm-stats.com
Google
Gemini 3.7 Flash
Input tokens$0.75
Output tokens$3.75
Best providerGoogle
Upstage
Solar Pro 4
Input tokens$0.30
Output tokens$1.20
Best providerUnknown Organization
Notice missing or incorrect data?Start an Issue

Context Window

Maximum input and output token capacity

Gemini 3.7 Flash accepts 1,048,576 input tokens compared to Solar Pro 4's 524,288 tokens. Solar Pro 4 can generate longer responses up to 131,072 tokens, while Gemini 3.7 Flash is limited to 65,536 tokens.

Google
Gemini 3.7 Flash
Input1,048,576 tokens
Output65,536 tokens
Upstage
Solar Pro 4
Input524,288 tokens
Output131,072 tokens
Tue Aug 25 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Gemini 3.7 Flash supports multimodal inputs, whereas Solar Pro 4 does not.

Gemini 3.7 Flash can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemini 3.7 Flash

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.

Gemini 3.7 Flash

Proprietary

Closed source

Solar Pro 4

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3.7 Flash was released on 2026-08-13, while Solar Pro 4 was released on 2026-08-06.

Gemini 3.7 Flash is 0 month newer than Solar Pro 4.

Gemini 3.7 Flash

Aug 13, 2026

1 weeks ago

1w newer
Solar Pro 4

Aug 6, 2026

2 weeks ago

Knowledge Cutoff

When training data ends

Gemini 3.7 Flash has a documented knowledge cutoff of 2026-03-31, while Solar Pro 4's cutoff date is not specified.

We can confirm Gemini 3.7 Flash's training data extends to 2026-03-31, but cannot make a direct comparison without Solar Pro 4's cutoff date.

Gemini 3.7 Flash

Mar 2026

Solar Pro 4

Provider Availability

Gemini 3.7 Flash is available from Google. Solar Pro 4 is available from Upstage.

Gemini 3.7 Flash

google logo
Google
Input Price:Input: $0.75/1MOutput Price:Output: $3.75/1M

Solar Pro 4

upstage logo
Unknown Organization
Input Price:Input: $0.30/1MOutput Price:Output: $1.20/1M
* 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 Gemini 3.7 Flash and Solar Pro 4 side-by-side, then vote on the output you prefer.

Gemini 3.7 Flash
✓ Preferred
Solar Pro 4
Open in Playground

FAQ

Common questions about Gemini 3.7 Flash vs Solar Pro 4.

Which is better, Gemini 3.7 Flash or Solar Pro 4?

Gemini 3.7 Flash significantly outperforms across most benchmarks. Gemini 3.7 Flash is made by Google and Solar Pro 4 is made by Upstage. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Gemini 3.7 Flash compare to Solar Pro 4 in benchmarks?

Gemini 3.7 Flash scores MRCR v2 (8-needle): 97.0%, Harvey LAB-AA: 90.7%, CharXiv-R: 88.7%, Terminal-Bench 2.1: 85.8%, LVBench: 85.4%. Solar Pro 4 scores AIME 2026: 95.3%, GPQA: 89.0%, LiveCodeBench: 87.8%, MMLU-Pro: 86.3%, AA-LCR: 71.0%.

Is Gemini 3.7 Flash cheaper than Solar Pro 4?

Solar Pro 4 is 2.5x cheaper for input tokens. Gemini 3.7 Flash costs $0.75/M input and $3.75/M output via google. Solar Pro 4 costs $0.30/M input and $1.20/M output via upstage.

What are the context window sizes for Gemini 3.7 Flash and Solar Pro 4?

Gemini 3.7 Flash supports 1.0M 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 Gemini 3.7 Flash and Solar Pro 4?

Key differences include context window (1.0M vs 524K), input pricing ($0.75 vs $0.30/M), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.7 Flash and Solar Pro 4?

Gemini 3.7 Flash is developed by Google and Solar Pro 4 is developed by Upstage.