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GPT-5.6 Luna (high) vs GLM 5 (medium)

GLM 5 (medium) leads on average score with 7.7 vs 7.6. GPT-5.6 Luna (high) has the lower benchmark cost at $0.179 vs $0.228. GPT-5.6 Luna (high) is faster at 16.49s vs 33.54s, with pass rates of 69.7% vs 78.8%.

Last updated at: 2026-09-08

Compared models

Rank
#94
Total Output Tokens
135,315
Response Time (avg)
16.49s
Total Cost
$0.179
Rank
#88
Total Output Tokens
124,566
Response Time (avg)
33.54s
Total Cost
$0.228
Recommended model GPT-5.6 Luna (high)

Its score stays close to the best score here (7.6 vs 7.7), while responding about 2.0x faster than GLM 5 (medium).

Detailed comparison

Metric GPT-5.6 Luna GPT-5.6 Luna high Release: 2026-07-09 GLM 5 GLM 5 medium Release: 2026-02-12
Score 7.6 7.7
Rank #94 #88
Reliability 10.0 10.0
Consistency 8.5 8.1
Attempts 66/66 63/66
Tests Correct
Attempt pass rate 69.7% 78.8%
Flaky tests 4 4
Total Runs 66 63
Cost per result 6.100 1.668
Total Cost $0.179 $0.228
Input Price $0.200 / 1M $0.600 / 1M
Output Price $1.200 / 1M $1.920 / 1M
Total Input Tokens 80,927 35,224
Output Tokens 5,088 21,570
Reasoning Tokens 130,227 102,996
Response Time (avg) 16.49s 33.54s
Response Time (max) 111.09s 99.85s
Response Time (total) 362.78s 435.99s
Parameters ~400B total (~17B active) 744B total (40B active)
Availability Closed Open source

Model generation showcase

Hamster playing table tennis

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

#94 GPT-5.6 Luna

high
Cost
$0.033
Time
34.2s
Tokens
5,484 tok

#88 GLM 5

medium
Cost
$0.005
Time
20.7s
Tokens
2,068 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 5.5 4.7 55.6% 2 15.63s 7,302 510 17,746
GLM 5 10.0 10.0 100.0% 0 74.30s 7,254 2,997 52,930

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