Upstage
Release: 2026-08-11
Tested on: 2026-08-11 16:35
upstage/solar-pro4::high
~100BDenseClosedEstimated
Summary
Solar Pro 4 scores 7.2 on AI BENCHY and ranks #93. It has 9.9 reliability, a 63.6% pass rate, $0.045 total cost, and 100.28s average response time.
What makes Solar Pro 4 unique: Its total benchmark cost is unusually low for its score range. It uses unusually many reasoning tokens, which can help explain its slower or more expensive runs.
Model facts
Researched on 2026-08-12
- Parameters
- ~100B
- Architecture
- Dense
- Availability
- Closed
- License
- -
Best estimate from public evidence; the vendor did not disclose every value. Vendor does not disclose the parameter count.
7.2
Consistency
8.7
9.9
$0.045
Total Output Tokens
353,055
Total Input Tokens
79,731
Input Price
$0.030 / 1M
Output Price
$0.120 / 1M
Flaky tests
4
Flaky tests had mixed outcomes across runs (at least one pass and one fail).
Run history
| Tested on | Score | Reliability | Tests Correct | Total Cost | Compare |
|---|---|---|---|---|---|
| 2026-08-14 03:57 Re-test | 7.1 | 10.0 | $0.046 | Compare | |
| 2026-08-11 16:35 Initial run | 7.2 | 9.9 | $0.045 | Current run |
Run comparison
| Run | Benchmark coverage | Score | Consistency | Reliability | Tests Correct | Flaky tests | Total Output Tokens | Total Input Tokens | Total Cost | Response Time (avg) |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-11 16:35 · Initial run | 66/66 attempts | 7.2 | 8.7 | 9.9 | 12/22 | 4 | 353,055 | 79,731 | $0.045 | 100.28s |
| 2026-08-14 03:57 · Re-test | 66/66 attempts | 7.1 | 8.3 | 10.0 | 11/22 | 5 | 363,194 | 79,740 | $0.046 | 120.58s |
| Difference | — | +0.1 | +0.4 | -0.1 | +1 | -1 | -10139 | -9 | -$0.002 | -20304ms |
These two runs used different benchmark suites, so the deltas reflect both model changes and suite changes.
Charts
Choose the first model, then click a second model to open a side-by-side page.
Score vs Total Cost
Response Time (avg)
Score vs Response Time (avg)
Total Output Tokens
Score vs Total Output Tokens
Quick Compare
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Category Breakdown
| Category | Score | Consistency | Tests Correct |
|---|---|---|---|
| Anti-AI Tricks | 8.7 | 7.9 | |
| Coding | 5.7 | 9.9 | |
| Combined | 7.3 | 5.8 | |
| Data parsing and extraction | 10.0 | 10.0 | |
| Domain specific | 5.3 | 10.0 | |
| General Intelligence | 5.5 | 10.0 | |
| Instructions following | 7.9 | 6.9 | |
| Puzzle Solving | 8.7 | 7.9 | |
| Tool Calling | 10.0 | 10.0 | |
| Trivia | 3.0 | 10.0 |