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GPT-5.6 Luna (medium) vs Inkling Small (high)

The average score is effectively tied at 7.4 vs 7.4. GPT-5.6 Luna (medium) has the lower benchmark cost at $0.101 vs $0.402. GPT-5.6 Luna (medium) is faster at 9.64s vs 29.10s, with pass rates of 62.3% vs 66.7%.

Last updated at: 2026-10-01

Compared models

Rank
#122
Total Output Tokens
47,986
Response Time (avg)
9.64s
Total Cost
$0.101
Rank
#128
Total Output Tokens
298,893
Response Time (avg)
29.10s
Total Cost
$0.402
Recommended model GPT-5.6 Luna (medium)

It has the best score here (7.4), while costing about 4.0x less than Inkling Small (high).

Detailed comparison

Metric GPT-5.6 Luna GPT-5.6 Luna medium Release: 2026-07-09 Inkling Small Inkling Small high Release: 2026-08-01 Free Available
Score 7.4 7.4
Rank #122 #128
Reliability 10.0 10.0
Consistency 9.0 9.3
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 62.3% 66.7%
Flaky tests 3 2
Total Runs 69 69
Cost per result 2.822 2.868
Total Cost $0.101 $0.402
Input Price $0.200 / 1M $0.450 / 1M
Output Price $1.200 / 1M $1.200 / 1M
Total Input Tokens 212,780 85,669
Output Tokens 6,849 6,092
Reasoning Tokens 41,137 292,801
Response Time (avg) 9.64s 29.10s
Response Time (max) 58.09s 122.60s
Response Time (total) 221.62s 669.40s
Parameters ~400B total (~17B active) 276B total (12B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#122 GPT-5.6 Luna

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

#128 Thinking Machines: Inkling Small

high
Cost
$0.006
Time
34.7s
Tokens
4,735 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
Inkling Small 10.0 10.0 100.0% 0 93.23s 7,374 463 120,474

Quick Compare

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