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GPT-5.6 Luna (medium) vs Solar Pro 4 (xhigh)

Solar Pro 4 (xhigh) leads on average score with 7.7 vs 7.6. GPT-5.6 Luna (medium) has the lower benchmark cost at $0.036 vs $0.049. GPT-5.6 Luna (medium) is faster at 7.28s vs 115.81s, with pass rates of 65.2% vs 65.2%.

Last updated at: 2026-08-11

Rank
#69
Total Output Tokens
43,679
Response Time (avg)
7.28s
Total Cost
$0.036
Rank
#63
Total Output Tokens
379,812
Response Time (avg)
115.81s
Total Cost
$0.049
Recommended model GPT-5.6 Luna (medium)

Its score stays close to the best score here (7.6 vs 7.7), while responding about 15.9x faster than Solar Pro 4 (xhigh).

Detailed comparison

Metric GPT-5.6 Luna GPT-5.6 Luna medium Release: 2026-07-09 Solar Pro 4 Solar Pro 4 xhigh Release: 2026-08-11
Score 7.6 7.7
Rank #69 #63
Reliability 10.0 10.0
Consistency 9.6 9.4
Benchmark coverage 22/22 tests · 66/66 attempts 22/22 tests · 66/66 attempts
Tests Correct
Attempt pass rate 65.2% 65.2%
Flaky tests 1 2
Total Runs 66 66
Cost per result 2.513 0.374
Total Cost $0.036 $0.049
Input Price $0.100 / 1M $0.030 / 1M
Output Price $0.600 / 1M $0.120 / 1M
Total Input Tokens 89,676 98,107
Output Tokens 5,699 21,723
Reasoning Tokens 37,980 358,089
Response Time (avg) 7.28s 115.81s
Response Time (max) 29.85s 419.47s
Response Time (total) 160.27s 2547.92s

Model generation showcase

Hamster playing table tennis

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

#69 GPT-5.6 Luna

medium
Cost
$0.014
Time
14.6s
Tokens
2,362 tok

#63 Solar Pro 4

xhigh
No showcase result has been generated for this model yet.
Cost
$0.000
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
GPT-5.6 Luna 5.4 7.2 44.4% 1 10.38s 7,302 564 9,928
Solar Pro 4 5.8 9.9 33.3% 0 292.21s 7,887 15,575 115,426

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