Navigate
Advertise here

GPT-6 Luna (medium) vs Step 3.7 Flash (high)

GPT-6 Luna (medium) leads on average score with 8.3 vs 6.6. GPT-6 Luna (medium) has the lower benchmark cost at $0.047 vs $1.478. GPT-6 Luna (medium) is faster at 18.07s vs 72.72s, with pass rates of 73.9% vs 58.0%.

Last updated at: 2026-10-12

Compared models

Rank
#83
Total Output Tokens
53,161
Response Time (avg)
18.07s
Total Cost
$0.047
Rank
#203
Total Output Tokens
1,100,052
Response Time (avg)
72.72s
Total Cost
$1.478
Recommended model GPT-6 Luna (medium)

It has the best score here (8.3), while costing about 31.5x less than Step 3.7 Flash (high).

Detailed comparison

Metric GPT-6 Luna GPT-6 Luna medium Release: 2026-09-23 Step 3.7 Flash Step 3.7 Flash high Release: 2026-05-29
Score 8.3 6.6
Rank #83 #203
Reliability 10.0 10.0
Consistency 8.9 8.5
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 73.9% 58.0%
Flaky tests 3 4
Total Runs 69 69
Cost per result 0.313 12.267
Total Cost $0.047 $1.478
Input Price $0.100 / 1M $0.200 / 1M
Output Price $0.500 / 1M $1.150 / 1M
Cache Read Price $0.010 / 1M $0.040 / 1M
Cache Write Price $0.125 / 1M N/A
Total Input Tokens 203,193 421,200
Output Tokens 5,751 1,100,052
Reasoning Tokens 47,410 0
Response Time (avg) 18.07s 72.72s
Response Time (max) 66.44s 364.99s
Response Time (total) 415.53s 1672.53s
Parameters ~400B total (~17B active) 198B total (11B active)
Availability Closed Open source

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Model generation showcase

Hamster playing table tennis

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

#83 GPT-6 Luna

medium
Cost
$0.002
Time
23.6s
Tokens
2,966 tok

#203 Step 3.7 Flash

high
Cost
$0.007
Time
63.6s
Tokens
6,030 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-6 Luna 6.6 4.6 77.8% 2 23.63s 7,302 438 10,222
Step 3.7 Flash 4.0 6.0 22.2% 1 206.21s 6,057 327,340 0

Switch Comparison Pair