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Gemini 3 Flash Preview (medium) vs GPT-6 Astra (xhigh)

GPT-6 Astra (xhigh) leads on average score with 9.9 vs 9.5. Gemini 3 Flash Preview (medium) has the lower benchmark cost at $0.763 vs $5.156. Gemini 3 Flash Preview (medium) is faster at 19.86s vs 28.44s, with pass rates of 93.9% vs 97.0%.

Last updated at: 2026-09-04

Rank
#10
Total Output Tokens
239,608
Response Time (avg)
19.86s
Total Cost
$0.763
Rank
#5
Total Output Tokens
87,183
Response Time (avg)
28.44s
Total Cost
$5.156
Recommended model Gemini 3 Flash Preview (medium)

Its score stays close to the best score here (9.5 vs 9.9), while costing about 6.8x less than GPT-6 Astra (xhigh).

Detailed comparison

Metric Gemini 3 Flash Preview Gemini 3 Flash Preview medium Release: 2025-12-17 GPT-6 Astra GPT-6 Astra xhigh Release: 2026-09-04
Score 9.5 9.9
Rank #10 #5
Reliability 10.0 9.9
Consistency 9.7 9.6
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 93.9% 97.0%
Flaky tests 1 1
Total Runs 66 66
Cost per result 3.814 24.552
Total Cost $0.763 $5.156
Input Price $0.500 / 1M $10.000 / 1M
Output Price $3.000 / 1M $50.000 / 1M
Total Input Tokens 87,870 79,662
Output Tokens 5,486 5,055
Reasoning Tokens 234,122 82,128
Response Time (avg) 19.86s 28.44s
Response Time (max) 117.26s 381.11s
Response Time (total) 436.88s 625.68s
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.

#10 Gemini 3 Flash Preview

medium
Cost
$0.010
Time
18.4s
Tokens
3,351 tok

#5 GPT-6 Astra

xhigh
Cost
$0.694
Time
257.5s
Tokens
13,964 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 Flash Preview 8.6 7.6 88.9% 1 84.40s 8,122 462 161,084
GPT-6 Astra 10.0 10.0 100.0% 0 8.27s 7,302 396 4,031

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