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Solar Pro 4: price, performance and context
Proprietary Solar Pro 4 by Upstage costs $0.09 per 1M input and $0.36 per 1M output tokens, handles up to 524.3K tokens in one request (≈ 1,600 pages of text) and scores 28.2 points on the AgentKernel performance index, rank 53 of 212.
Privacy: zero data retention with one provider, not in the EU. Availability over the last 24 h: 100%.
Updated Oct 09, 2026, 16:45 UTC · upstage/solar-pro4
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Key facts
- Licence
- Proprietary: no public weights, only through a provider API
- Input / 1M tokens
- $0.09
- Output / 1M tokens
- $0.36
- Context window
- 524.3K tokens
- Max. output
- 131.1K tokens
- Performance index
- 28.2 points · rank 53 of 212
- Coding index
- 52.7 points · rank 50 of 119
- Agentic index
- n/a
- Cost at your usage
- $0.18 / month
- Knowledge cutoff
- n/a
- In the catalog since
- Aug 10, 2026
- Capabilities
- Reasoning, Tool Calling
What do you get for $10.00?
Rules of thumb from the cost calculator, base rates without caching or taxes.
| Task | Cost per task | For $10.00 |
|---|
| Chat repliesA question with a short history, a detailed answer | $0.00 | 48,000 |
| Email draftsBullet points in, a finished email out | $0.00 | 60,000 |
| Document summariesRead 10 pages, write a one-page summary | $0.00 | 21,000 |
| Code reviewsReview and comment on 500 lines of code | $0.001 | 12,000 |
| Book analysesAnalyse a 300-page book in one go | $0.01 | 1,000 |
Cheaper with similar performance
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