Upstage
Solar Pro 3
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.
At a glance
- Input / 1M
- $0.15
- Output / 1M
- $0.60
- Context
- 131K
- Max output
- 118K
- Intelligence
- 7.8
- Released
- Jan 2026
Pricing
Solar Pro 3 API pricing
Per-token rates, plus what common tasks actually cost.
| Input tokensPer 1M tokens | $0.15 |
|---|---|
| Output tokensPer 1M tokens | $0.60 |
| Cached input (read)Per 1M tokens | $0.02 |
| Cache writePer 1M tokens | Not available |
Chat message
2K in, 500 out
$0.60
per 1,000 requests
Coding task
30K in, 4K out
$6.90
per 1,000 requests
Long document summary
150K in, 2K out
$23.70
per 1,000 requests
Benchmarks
Solar Pro 3 benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
7.8
Coding index
16.2
Agentic index
1.4
Specs
Context window and capabilities
What it can read, what it can write, and which API features it supports.
- Context window
- 131K tokens
- Max output
- 118K tokens
- Input types
- Text
- Output types
- Text
- Reasoning effort
- High, Medium, Low, Minimal, None
- Release date
- January 27, 2026
- Tool calling
- Structured outputs
- JSON mode
- Reasoning
- Temperature
- Stop sequences
- Deterministic seed
- Verbosity control
Compare
Solar Pro 3 vs other models
See how Solar Pro 3 stacks up head to head on price, benchmarks, and features.
Solar Pro 3 vs Gemini 2.5 Flash Lite
Upstage vs Google
See comparison
Solar Pro 3 vs Qwen3 Coder Next
Upstage vs Qwen
See comparisonSolar Pro 3 vs Qwen3 VL 30B A3B Instruct
Upstage vs Qwen
See comparison
Solar Pro 3 vs GPT-4.1 Nano
Upstage vs OpenAI
See comparisonSolar Pro 3 vs Llama 3.3 70B Instruct
Upstage vs Meta
See comparisonSolar Pro 3 vs Qwen2.5 72B Instruct
Upstage vs Qwen
See comparisonAlternatives
Solar Pro 3 alternatives
Similar models worth considering, and where each one has the edge.
Gemini 2.5 Flash Lite
Qwen
Qwen3 Coder Next
Qwen
Qwen3 VL 30B A3B Instruct
Want to learn about other models? Browse all models
FAQ
Frequently asked questions
How much does Solar Pro 3 cost?
Solar Pro 3 costs $0.15 per 1M input tokens and $0.60 per 1M output tokens through the API. A typical chat message costs about $0.60 per 1,000 messages.
What is the context window of Solar Pro 3?
Solar Pro 3 accepts up to 131K tokens of input and can write up to 118K tokens in a single response.
What is the best alternative to Solar Pro 3?
Gemini 2.5 Flash Lite from Google is a strong alternative. It offers: 1.5x cheaper output, higher intelligence score, larger 1.05m context.
Can I use Solar Pro 3 alongside other models?
Yes. Shortcut Chat sends one prompt to Solar Pro 3 and any other models you pick at the same time, so you can compare answers side by side.
Try Solar Pro 3 next to every other model.
Use Solar Pro 3 alongside all the other models. Use one at a time, or multiple together. Get the best answer from every AI.