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Cobuddy vs OpenAI: GPT-5 Nano

Last updated at: 2026-05-22

Metric Cobuddy Cobuddy medium Release: 2026-05-06 Free Available GPT-5 Nano GPT-5 Nano medium Release: 2025-08-07
Score 5.7 6.1
Rank #105 #94
Reliability 9.9 10.0
Consistency 7.0 7.1
Tests Correct
Attempt pass rate 51.7% 55.0%
Flaky tests 7 7
Total Runs 60 60
Cost per result 0.000 0.945
Total Cost $0.000 $0.076
Input Price $0.000 / 1M $0.050 / 1M
Output Price $0.000 / 1M $0.400 / 1M
Output Tokens 1,663 5,338
Reasoning Tokens 116,522 179,584
Response Time (avg) 39.91s 43.11s
Response Time (max) 309.02s 204.02s
Response Time (total) 798.21s 560.45s

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

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Cobuddy 8.7 7.9 91.7% 1 10.00s 98 4,666
GPT-5 Nano 6.5 7.9 58.3% 1 25.50s 1,221 21,184
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Cobuddy 4.1 5.1 33.3% 1 79.17s 358 30,138
GPT-5 Nano 5.4 6.6 33.3% 1 47.80s 604 30,144
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Cobuddy 3.0 10.0 0.0% 0 47.38s 465 7,265
GPT-5 Nano 10.0 10.0 100.0% 0 65.96s 578 17,984
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Cobuddy 6.3 5.8 66.7% 1 17.36s 275 5,591
GPT-5 Nano 3.7 1.7 50.0% 2 21.42s 453 10,560
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Cobuddy 2.9 4.4 22.2% 2 128.15s 10 49,454
GPT-5 Nano 5.2 4.4 55.6% 2 204.02s 237 64,448
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Cobuddy 4.2 9.9 0.0% 0 23.23s 76 3,782
GPT-5 Nano 4.1 10.0 0.0% 0 17.51s 202 4,608
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Cobuddy 9.8 10.0 100.0% 0 11.60s 64 2,842
GPT-5 Nano 9.8 10.0 100.0% 0 11.90s 382 4,096
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Cobuddy 3.5 4.4 33.3% 2 12.91s 175 5,627
GPT-5 Nano 5.3 7.2 44.4% 1 19.81s 869 13,440
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Cobuddy 10.0 10.0 100.0% 0 11.19s 133 294
GPT-5 Nano 10.0 10.0 100.0% 0 33.30s 558 6,976
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Cobuddy 3.0 10.0 0.0% 0 36.98s 9 6,863
GPT-5 Nano 3.0 10.0 0.0% 0 20.13s 234 6,144

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