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Gemini 3 PRO Preview vs OpenAI: GPT-5.3 Chat

Last updated at: 2026-04-16

Metric Gemini 3 PRO Preview Gemini 3 PRO Preview medium Release: 2025-11-18 GPT-5.3 Chat GPT-5.3 Chat none Release: 2026-03-03
Score 8.4 7.7
Rank #12 #35
Consistency 10.0 8.6
Tests Correct
Attempt pass rate 77.8% 68.5%
Flaky tests 0 3
Total Runs 54 54
Cost per result 1.406 3.082
Total Cost $0.197 $0.340
Input Price $0.000 / 1M $1.750 / 1M
Output Price $0.000 / 1M $14.000 / 1M
Output Tokens 1,508 20,784
Reasoning Tokens 10,084 0
Response Time (avg) 9.06s 5.88s
Response Time (max) 26.24s 18.33s
Response Time (total) 90.58s 105.90s

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Score vs Total Cost

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Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 PRO Preview 10.0 10.0 100.0% 0 14.99s 149 1,485
GPT-5.3 Chat 6.7 8.1 58.3% 1 3.86s 3,167 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 PRO Preview 3.0 10.0 0.0% 0 0ms 0 0
GPT-5.3 Chat 10.0 10.0 100.0% 0 9.32s 1,436 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 PRO Preview 3.0 10.0 0.0% 0 10.37s 351 952
GPT-5.3 Chat 10.0 10.0 100.0% 0 11.96s 2,614 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 PRO Preview 10.0 10.0 100.0% 0 10.84s 279 3,156
GPT-5.3 Chat 10.0 10.0 100.0% 0 2.21s 942 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 PRO Preview 5.3 10.0 33.3% 0 7.01s 15 1,195
GPT-5.3 Chat 3.5 4.4 33.3% 2 13.01s 8,264 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 PRO Preview 10.0 10.0 100.0% 0 9.34s 78 374
GPT-5.3 Chat 4.6 10.0 0.0% 0 1.99s 319 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 PRO Preview 9.8 10.0 100.0% 0 3.26s 69 754
GPT-5.3 Chat 8.3 10.0 50.0% 0 3.29s 1,455 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 PRO Preview 10.0 10.0 100.0% 0 3.91s 243 1,197
GPT-5.3 Chat 10.0 10.0 100.0% 0 2.93s 1,726 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Gemini 3 PRO Preview 10.0 10.0 100.0% 0 11.96s 324 971
GPT-5.3 Chat 10.0 10.0 100.0% 0 8.36s 861 0

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