Advertise here
#234

Solar Pro 4

Upstage Release: 2026-08-11 Tested on: 2026-10-01 03:29 upstage/solar-pro4::xhigh
~100BDenseClosedEstimated
(xhigh) (high) (medium) (low) (none)

Summary

Solar Pro 4 scores 6.7 on AI BENCHY and ranks #234. It has 9.9 reliability, a 58.0% pass rate, $0.067 total cost, and 142.76s average response time.

What makes Solar Pro 4 unique: It stands out most in Combined, where it ranks #1, while Agentic is its weakest area at #14.

Model facts

Researched on 2026-08-12

Estimated
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.

Parameter source Availability source

Score

6.7

Consistency

9.4

Reliability

9.9

Total Cost (Current Price)

$0.067

Total Output Tokens

424,490

Total Input Tokens

150,033

Input Price

$0.090 / 1M

Output Price

$0.360 / 1M

Cache Read Price

$0.018 / 1M

Cache Write Price

N/A

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Tests Correct

Wrong Tests: 11

Attempt pass rate: 58.0%

Flaky tests

2

Flaky tests had mixed outcomes across runs (at least one pass and one fail).

Response Time (avg)

142.76s

Response Time (max): 491.42s

Response Time (total): 3283.43s

Wrong answer: 5 Did not follow instructions: 3 No answer: 2 Extra formatting: 1

Run history

Tested on Score Reliability Tests Correct Total Cost Compare
2026-10-01 03:29 Re-test 6.7 9.9 $0.067 Current run
2026-08-11 17:26 Initial run 7.7 10.0 $0.049 Compare

This run used a different benchmark suite. Keep suite changes in mind when reading historical movement.

Run comparison

RunBenchmark coverageScoreConsistencyReliabilityTests CorrectFlaky testsTotal Output TokensTotal Input TokensTotal CostResponse Time (avg)
2026-10-01 03:29 · Current run69/69 attempts6.79.49.912/232424,490150,033$0.067142.76s
2026-08-11 17:26 · Initial run66/66 attempts7.79.410.013/222379,81298,107$0.049115.81s
Difference—-1.00.0-0.1-10+44678+51926+$0.019+26943ms

Benchmark coverage differs: 69/69 attempts (Target: 3 repeats per test) versus 66/66 attempts (Target: 3 repeats per test). Totals and repeat-sensitive metrics are not directly comparable.

These two runs used different benchmark suites, so the deltas reflect both model changes and suite changes.

Price History

Historical pricing data for this model from OpenRouter.

Date Input Price Output Price Cache Read Price Cache Write Price
2026-08-14 12:51 $0.030 / 1M $0.120 / 1M N/A N/A
2026-10-01 18:33 $0.090 / 1M $0.360 / 1M $0.018 / 1M N/A

Charts

Choose the first model, then click a second model to open a side-by-side page.

Total Output Tokens

Score vs Total Output Tokens

Quick Compare

Solar Pro 4xhighvsSpace Bunny AlphamaxSolar Pro 4xhighvsGrok 4.7xhighSolar Pro 4xhighvsGPT-6 SolnoneSolar Pro 4xhighvsGrok Build 0.1mediumSolar Pro 4xhighvsMercury 2.5 PreviewmediumSolar Pro 4xhighvsGLM 5.3 FlashX LegallowSolar Pro 4xhighvsInklinglowFree AvailableSolar Pro 4xhighvsQwen3.5-FlashnoneSolar Pro 4xhighvsQwen3.5-FlashmediumSolar Pro 4xhighvsSolar Pro 4low

Category Breakdown

Category Score Consistency Tests Correct
Agentic 3.0 10.0
Anti-AI Tricks 8.3 10.0
Coding 5.8 9.9
Combined 10.0 10.0
Data parsing and extraction 10.0 10.0
Domain specific 3.0 10.0
General Intelligence 5.5 10.0
Instructions following 8.4 6.9
Puzzle Solving 8.9 7.8
Tool Calling 10.0 10.0
Trivia 3.0 10.0

Compared models