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Gemini 3.5 Flash (medium) vs GPT-6 Luna (high)

Gemini 3.5 Flash (medium) leads on average score with 7.9 vs 7.7. GPT-6 Luna (high) has the lower benchmark cost at $0.074 vs $1.316. Gemini 3.5 Flash (medium) is faster at 11.78s vs 20.37s, with pass rates of 81.2% vs 73.9%.

Last updated at: 2026-10-02

Compared models

Rank
#101
Total Output Tokens
96,655
Response Time (avg)
11.78s
Total Cost
$1.316
Rank
#111
Total Output Tokens
101,587
Response Time (avg)
20.37s
Total Cost
$0.074
Recommended model GPT-6 Luna (high)

Its score stays close to the best score here (7.7 vs 7.9), while costing about 17.8x less than Gemini 3.5 Flash (medium).

Detailed comparison

Metric Gemini 3.5 Flash Gemini 3.5 Flash medium Release: 2026-05-19 GPT-6 Luna GPT-6 Luna high Release: 2026-09-23
Score 7.9 7.7
Rank #101 #111
Reliability 10.0 10.0
Consistency 9.3 8.7
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 81.2% 73.9%
Flaky tests 2 4
Total Runs 69 69
Cost per result 7.306 0.492
Total Cost $1.316 $0.074
Input Price $1.500 / 1M $0.100 / 1M
Output Price $9.000 / 1M $0.500 / 1M
Cache Read Price $0.150 / 1M $0.010 / 1M
Cache Write Price $0.084 / 1M $0.125 / 1M
Total Input Tokens 296,760 229,986
Output Tokens 4,371 6,037
Reasoning Tokens 92,284 95,550
Response Time (avg) 11.78s 20.37s
Response Time (max) 84.47s 106.93s
Response Time (total) 271.03s 468.52s
Parameters ~500B total (~20B active) ~400B total (~17B active)
Availability Closed Closed

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.

#101 Gemini 3.5 Flash

medium
Cost
$0.201
Time
112.9s
Tokens
22,371 tok

#111 GPT-6 Luna

high
Cost
$0.003
Time
49.2s
Tokens
5,231 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
Gemini 3.5 Flash 7.9 7.5 77.8% 1 12.63s 8,118 461 24,939
GPT-6 Luna 7.8 7.4 77.8% 1 24.69s 7,302 483 15,691

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