Upstage: Solar Pro 3
Upstage: Solar Pro 3 is designed for handling extensive text inputs up to 128,000 tokens in length and supports both tool integration and reasoning capabilities, making it suitable for complex tasks that require deep analysis. The model does not support structured output or open weights, focusing solely on natural language processing. This model stands as a strong contender for users needing robust text-based solutions with integrated tools and reasoning. Given its price at $0.15 per million input tokens and $0.6 per million output tokens, Solar Pro 3 offers a competitive cost-effective solution compared to other models in its class. Its benchmark score of 17.2 across three independent evaluations suggests reliable performance for a wide range of text-based tasks; however, the limited benchmark coverage may impact confidence in specific use cases.
Benchmark results
Independent, published benchmarks. Blended score 17.0 across 3 benchmarks, last refreshed 2026-07-27. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 23.3 |
| AI Index Coding | software engineering tasks | 26.7 |
| AI Index Agentic | multi-step tool-using tasks | 4.4 |
- Model ID
- upstage/solar-pro-3
- Vendor
- upstage
- Released
- January 2026
- Tokenizer
- Other
- Input Modalities
- text
- Output Modalities
- text
- Max Output
- default
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- text only
- Audio
- no
- Moderated
- no
What it costs in practice
Computed from the current $0.15/M input and $0.60/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | under $0.01 |
| Classify 1,000 customer emails | 500k in / 50k out | $0.10 |
| A month of a busy support chatbot | 5M in / 2M out | $1.95 |
Quick answers
- How much does Upstage: Solar Pro 3 cost?
- $0.15 per million input tokens and $0.60 per million output tokens.
- What is Upstage: Solar Pro 3's context window?
- 128,000 tokens, roughly 192 pages of text in a single request.
- Does Upstage: Solar Pro 3 support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can Upstage: Solar Pro 3 process images?
- No, it is text-only on the input side.