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Gemini 3 Flash Preview vs GPT-5.3-Codex (medium)

GPT-5.3-Codex (medium) leads on average score with 8.9 vs 6.8. Gemini 3 Flash Preview has the lower benchmark cost at $0.085 vs $0.920. Gemini 3 Flash Preview is faster at 2.95s vs 16.96s, with pass rates of 65.2% vs 83.3%.

Last updated at: 2026-07-25

Rank
#97
Total Output Tokens
10,710
Response Time (avg)
2.95s
Total Cost
$0.085
Rank
#18
Total Output Tokens
55,525
Response Time (avg)
16.96s
Total Cost
$0.920
Recommended model Gemini 3 Flash Preview

It offers the best overall trade-off: a competitive score (6.8), lower cost than GPT-5.3-Codex (medium), and balanced response time.

Detailed comparison

Metric Gemini 3 Flash Preview Gemini 3 Flash Preview none Release: 2025-12-17 GPT-5.3-Codex GPT-5.3-Codex medium Release: 2026-02-05
Score 6.8 8.9
Rank #97 #18
Reliability 10.0 10.0
Consistency 8.9 8.6
Tests Correct
Attempt pass rate 65.2% 83.3%
Flaky tests 3 4
Total Runs 66 66
Cost per result 0.648 5.748
Total Cost $0.085 $0.920
Input Price $0.500 / 1M $1.750 / 1M
Output Price $3.000 / 1M $14.000 / 1M
Total Input Tokens 104,210 81,268
Output Tokens 10,710 6,251
Reasoning Tokens 0 49,274
Response Time (avg) 2.95s 16.96s
Response Time (max) 21.19s 100.93s
Response Time (total) 44.26s 373.19s

Hamster playing table tennis

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

#97 Gemini 3 Flash Preview

none
Cost
$0.003
Time
5.6s
Tokens
981 tok

#18 GPT-5.3-Codex

medium
Cost
$0.049
Time
54.9s
Tokens
3,580 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 5.5 10.0 33.3% 0 1.80s 8,122 453 0
GPT-5.3-Codex 10.0 10.0 100.0% 0 19.50s 7,302 535 10,890

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