Navigate
AD
Track all your projects in one dashboard. Get 📊stats, 🔥heatmaps and 👀recordings in one self-hosted dashboard.
uxwizz.com

GPT-6 Luna vs Step 3.5 Flash (medium)

GPT-6 Luna leads on average score with 5.5 vs 5.4. GPT-6 Luna has the lower benchmark cost at $0.026 vs $0.105. GPT-6 Luna is faster at 20.48s vs 190.48s, with pass rates of 40.6% vs 49.3%.

Last updated at: 2026-10-03

Compared models

Rank
#274
Total Output Tokens
6,855
Response Time (avg)
20.48s
Total Cost
$0.026
Rank
#283
Total Output Tokens
607,130
Response Time (avg)
190.48s
Total Cost
$0.105
Recommended model GPT-6 Luna

It has the best score here (5.5), while costing about 4.1x less than Step 3.5 Flash (medium).

Detailed comparison

Metric GPT-6 Luna GPT-6 Luna none Release: 2026-09-23 Step 3.5 Flash Step 3.5 Flash medium Release: 2026-02-01
Score 5.5 5.4
Rank #274 #283
Reliability 9.9 10.0
Consistency 8.2 8.3
Attempts 69/69 66/69
Tests Correct
Attempt pass rate 40.6% 49.3%
Flaky tests 5 3
Total Runs 69 66
Cost per result 0.367 1.047
Total Cost $0.026 $0.105
Input Price $0.100 / 1M $0.100 / 1M
Output Price $0.500 / 1M $0.300 / 1M
Cache Read Price $0.010 / 1M N/A
Cache Write Price $0.125 / 1M N/A
Total Input Tokens 222,357 139,086
Output Tokens 6,855 193,584
Reasoning Tokens 0 413,546
Response Time (avg) 20.48s 190.48s
Response Time (max) 98.62s 1597.85s
Response Time (total) 470.96s 3238.23s
Parameters ~400B total (~17B active) 196B 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.

#274 GPT-6 Luna

none
Cost
$0.002
Time
26.0s
Tokens
3,235 tok

#283 Step 3.5 Flash

medium
Cost
$0.008
Time
277.1s
Tokens
23,695 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 5.5 10.0 33.3% 0 8.04s 7,302 376 0
Step 3.5 Flash 2.4 5.2 0.0% 0 258.38s 2,211 13,207 22,429

Quick Compare

Switch Comparison Pair