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Gemini 3.8 Flash (medium) vs GPT-6 Astra (low)

GPT-6 Astra (low) leads on average score with 9.5 vs 9.1. Gemini 3.8 Flash (medium) has the lower benchmark cost at $0.653 vs $1.289. GPT-6 Astra (low) is faster at 5.09s vs 14.50s, with pass rates of 92.4% vs 90.9%.

Last updated at: 2026-09-04

Rank
#22
Total Output Tokens
154,908
Response Time (avg)
14.50s
Total Cost
$0.653
Rank
#9
Total Output Tokens
10,144
Response Time (avg)
5.09s
Total Cost
$1.289
Recommended model GPT-6 Astra (low)

It has the best score here (9.5), while responding about 2.8x faster than Gemini 3.8 Flash (medium).

Detailed comparison

Metric Gemini 3.8 Flash Gemini 3.8 Flash medium Release: 2026-09-02 GPT-6 Astra GPT-6 Astra low Release: 2026-09-04
Score 9.1 9.5
Rank #22 #9
Reliability 10.0 9.9
Consistency 9.3 10.0
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 92.4% 90.9%
Flaky tests 2 0
Total Runs 66 66
Cost per result 3.436 6.441
Total Cost $0.653 $1.289
Input Price $0.750 / 1M $10.000 / 1M
Output Price $3.750 / 1M $50.000 / 1M
Total Input Tokens 95,793 78,100
Output Tokens 7,066 4,155
Reasoning Tokens 147,842 5,989
Response Time (avg) 14.50s 5.09s
Response Time (max) 108.60s 28.60s
Response Time (total) 318.92s 112.04s
Parameters ~500B total (~20B active) ~2T total (~150B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#22 Gemini 3.8 Flash

medium
Cost
$0.037
Time
54.6s
Tokens
9,712 tok

#9 GPT-6 Astra

low
Invalid SVG
Cost
$0.151
Time
48.9s
Tokens
3,094 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 3.8 Flash 8.0 9.9 66.7% 0 11.69s 8,118 454 19,433
GPT-6 Astra 10.0 10.0 100.0% 0 3.97s 7,302 388 976

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