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#269

Solar Pro 4

Upstage Release: 2026-08-11 Tested on: 2026-10-01 03:25 upstage/solar-pro4::medium
~100BDenseClosedEstimated
(xhigh) (high) (medium) (low) (none)

Summary

Solar Pro 4 scores 6.4 on AI BENCHY and ranks #269. It has 9.9 reliability, a 60.9% pass rate, $0.098 total cost, and 133.93s average response time.

What makes Solar Pro 4 unique: It stands out most in Puzzle Solving, where it ranks #4, while General Intelligence is its weakest area at #16.

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

6.4

Consistency

8.4

Reliability

9.9

Total Cost (Current Price)

$0.098 ↑ +21.0%

Tested at: $0.081

Total Output Tokens

408,067

Total Input Tokens

299,558

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: 60.9%

Flaky tests

5

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

Response Time (avg)

133.93s

Response Time (max): 519.91s

Response Time (total): 3080.36s

Wrong answer: 6 Did not follow instructions: 2 API error: 1 Extra formatting: 1 No answer: 1

Run history

Tested on Score Reliability Tests Correct Total Cost Compare
2026-10-01 03:25 Re-test 6.4 9.9 $0.098 ↑ Current run
2026-08-11 16:48 Initial run 6.9 9.8 $0.046 Compare

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

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

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Category Breakdown

Category Score Consistency Tests Correct
Agentic 4.7 3.1
Anti-AI Tricks 8.2 7.9
Coding 5.5 7.4
Combined 6.4 5.8
Data parsing and extraction 10.0 10.0
Domain specific 3.0 10.0
General Intelligence 3.0 10.0
Instructions following 9.8 10.0
Puzzle Solving 9.0 7.9
Tool Calling 10.0 10.0
Trivia 3.0 10.0

Compared models