Gemini 3.6 Flash vs Solar Pro 4: Specs & Benchmark Comparison
Gemini 3.6 Flash is developed by Google, while Solar Pro 4 comes from Upstage. Gemini 3.6 Flash was released in July 2026, and Solar Pro 4 followed a month later in August 2026.
We have 7 benchmark results for Gemini 3.6 Flash and 9 benchmark results for Solar Pro 4, but they overlap on a single test: Terminal-Bench 2.1, where Gemini 3.6 Flash scores 78.0% against 57.0%.
Solar Pro 4 is the cheaper API at $0.30 per million input tokens and $1.20 per million output tokens, roughly 5 times cheaper than Gemini 3.6 Flash at $1.50 and $7.50. Gemini 3.6 Flash takes the larger context window at 1M tokens, compared with 524K for Solar Pro 4. Gemini 3.6 Flash accepts text and images as input, while Solar Pro 4 accepts text. On tooling, only Gemini 3.6 Flash supports function calling and only Gemini 3.6 Flash offers structured output.
| Characteristic | Gemini 3.6 Flash | Solar Pro 4 |
|---|---|---|
| Company | Upstage | |
| Release Date | July 21, 2026 | August 6, 2026 |
| Parameters | — | — |
| Multimodal | Yes | No |
| Context (input) | 1.0M | 524K |
| Context (output) | 66K | 131K |
| Input Price / 1M | $1.50 | $0.30 |
| Output Price / 1M | $7.50 | $1.20 |
| Average Score | 68.0% | 69.9% |
| Benchmarks | ||
| Terminal-Bench 2.1 | 78.0% | 57.0% |
Visual Benchmark Comparison
Verdict
Solar Pro 4 leads in 2 out of 4 comparison categories.
Both models show comparable average scores: Gemini 3.6 Flash — 0.7, Solar Pro 4 — 0.7.
Solar Pro 4 is 6.0x cheaper: input $0.30/1M vs $1.50/1M tokens.
Gemini 3.6 Flash supports a larger context: 1M vs 524K tokens.
Solar Pro 4 is newer: released 8/6/2026 vs 7/21/2026.
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Frequently Asked Questions
Which is better for coding — Gemini 3.6 Flash or Solar Pro 4?
Which model is cheaper — Gemini 3.6 Flash or Solar Pro 4?
Which has a larger context window — Gemini 3.6 Flash or Solar Pro 4?
The Gemini 3.6 Flash and Solar Pro 4 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Gemini 3.6 Flash or Solar Pro 4 page. See also the complete list of AI model comparisons.