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OpenAI: GPT-5 Nano vs Elephant

Last updated at: 2026-04-14

Metric GPT-5 Nano GPT-5 Nano medium Release: 2025-08-07 Elephant Elephant none Release: 2026-04-14
Score 6.3 5.2
Rank #54 #81
Consistency 6.5 9.6
Tests Correct
Attempt pass rate 59.3% 31.5%
Flaky tests 8 1
Total Runs 54 54
Cost per result 0.942 0.000
Total Cost $0.066 $0.000
Input Price $0.050 / 1M $0.000 / 1M
Output Price $0.400 / 1M $0.000 / 1M
Output Tokens 4,980 2,573
Reasoning Tokens 156,288 0
Response Time (avg) 44.13s 1.23s
Response Time (max) 204.02s 3.81s
Response Time (total) 485.47s 22.16s

Top Models by Score

Score vs Total Cost

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Score vs Response Time (avg)

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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
GPT-5 Nano 6.5 7.9 58.3% 1 25.50s 1,221 21,184
Elephant 6.6 10.0 50.0% 0 963ms 610 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5 Nano 6.7 3.5 66.7% 1 40.73s 480 12,992
Elephant 6.4 3.3 66.7% 1 1.39s 375 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5 Nano 10.0 10.0 100.0% 0 65.96s 578 17,984
Elephant 3.0 10.0 0.0% 0 3.81s 731 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5 Nano 3.7 1.7 50.0% 2 21.42s 453 10,560
Elephant 6.5 10.0 50.0% 0 1.04s 246 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5 Nano 5.2 4.4 55.6% 2 204.02s 237 64,448
Elephant 3.0 10.0 0.0% 0 927ms 24 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5 Nano 4.1 10.0 0.0% 0 17.51s 202 4,608
Elephant 4.0 10.0 0.0% 0 854ms 106 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5 Nano 8.5 6.8 83.3% 1 11.90s 382 4,096
Elephant 9.8 10.0 100.0% 0 1.03s 81 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5 Nano 5.3 7.2 44.4% 1 19.81s 869 13,440
Elephant 3.3 10.0 0.0% 0 849ms 170 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5 Nano 10.0 10.0 100.0% 0 33.30s 558 6,976
Elephant 3.0 10.0 0.0% 0 2.79s 230 0

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