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Claude Sonnet 5.5 (medium) vs Solar Pro 4

The average score is effectively tied at 5.7 vs 5.8. Solar Pro 4 has the lower benchmark cost at $0.017 vs $0.672. Solar Pro 4 is faster at 5.37s vs 6.07s, with pass rates of 37.9% vs 33.3%.

Last updated at: 2026-09-29

Compared models

Rank
#266
Total Output Tokens
32,980
Response Time (avg)
6.07s
Total Cost
$0.672
Rank
#264
Total Output Tokens
11,912
Response Time (avg)
5.37s
Total Cost
$0.017
Recommended model Solar Pro 4

It has the best score here (5.8), while costing about 41.8x less than Claude Sonnet 5.5 (medium).

Detailed comparison

Metric Claude Sonnet 5.5 Claude Sonnet 5.5 medium Release: 2026-09-29 Solar Pro 4 Solar Pro 4 none Release: 2026-08-11
Score 5.7 5.8
Rank #266 #264
Reliability 10.0 10.0
Consistency 9.7 9.6
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 37.9% 33.3%
Flaky tests 1 1
Total Runs 66 66
Cost per result 8.392 0.077
Total Cost $0.672 $0.017
Input Price $2.000 / 1M $0.090 / 1M
Output Price $10.000 / 1M $0.360 / 1M
Total Input Tokens 170,771 130,863
Output Tokens 23,185 11,912
Reasoning Tokens 9,795 0
Response Time (avg) 6.07s 5.37s
Response Time (max) 26.16s 64.67s
Response Time (total) 133.62s 118.06s
Parameters ~1T total (~100B active) ~100B
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#266 Claude Sonnet 5.5

medium
Cost
$0.024
Time
17.4s
Tokens
2,525 tok

#264 Solar Pro 4

none
No showcase result has been generated for this model yet.
Cost
N/A
Time
-
Tokens
0 tok

Top Models by Score

Score vs Total Cost

Response Time (avg)

Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Sonnet 5.5 3.4 9.7 0.0% 0 6.07s 10,608 6,767 0
Solar Pro 4 5.5 10.0 33.3% 0 2.61s 7,896 557 0

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