Gemini 3.1 Pro Preview Paid vs 
Solar Pro 3 Paid
Gemini 3.1 Pro Preview vs Solar Pro 3 compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Gemini 3.1 Pro Preview — full profile › · Solar Pro 3 — full profile ›
Prices & specs refreshed from live data · olud.ai
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
$12 /M outputManaged API (no infra to run)
$0.6 /M outputManaged API (no infra to run)
Gemini 3.1 Pro Preview vs Solar Pro 3 specs
| Spec | Gemini 3.1 Pro Preview | Solar Pro 3 | Winner |
|---|---|---|---|
| Maker | Upstage | – | |
| Type | Proprietary | Proprietary | – |
| Context window | 1M tokens | 131K tokens | |
| Input price | $2/M | $0.15/M | |
| Output price | $12/M | $0.6/M | |
| Vision / multimodal | Yes | No | |
| Tool / function calling | Yes | Yes | = Tie |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
Price gap & when to choose each
Solar Pro 3 is ~20× cheaper than Gemini 3.1 Pro Preview on output tokens ($0.6 vs $12 per M tokens).
- You want frontier performance through a managed API
- You need the longer 1M context window
- You value reliability & ecosystem
- You don't want to manage infrastructure
- You want frontier performance through a managed API
- You want the lower output price
- You value reliability & ecosystem
- You don't want to manage infrastructure
Feature comparison
| Capability | Gemini 3.1 Pro Preview | Solar Pro 3 |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✗ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✓ | ✗ |
Benchmarks: Gemini 3.1 Pro Preview vs Solar Pro 3
Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).
Benchmark data by Artificial Analysis.
How Gemini 3.1 Pro Preview and Solar Pro 3 score
| Criterion | Gemini 3.1 Pro Preview | Solar Pro 3 |
|---|---|---|
| Cost-efficiency | 3.5 | 5.0 |
| Context window | 5.0 | 3.5 |
| Openness | 1.5 | 1.5 |
| Self-hosting | 1.0 | 1.0 |
| Multimodality | 5.0 | 3.5 |
Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.
What each model is
Gemini 3.1 Pro Preview Paid
Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation.
Solar Pro 3 Paid
Solar Pro 3 is Upstage's powerful Mixture-of-Experts (MoE) language model. With 102B total parameters and 12B active parameters per forward pass, it delivers exceptional performance while maintaining computational efficiency. Optimized...
Other models in these families
These variants are tracked but not compared here — one page per family keeps the comparison readable.
Frequently asked questions
Gemini 3.1 Pro Preview vs Solar Pro 3 — which is cheaper?
Solar Pro 3 is cheaper on output ($0.6/M vs $12/M).
Which has the larger context window?
Gemini 3.1 Pro Preview offers the larger context window (1M tokens).
Gemini 3.1 Pro Preview vs Solar Pro 3 — which should I pick in 2026?
Choose Solar Pro 3 for the lower output price ($0.6/M vs $12/M). Choose Gemini 3.1 Pro Preview if you need the larger 1M context window.
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