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OpenAI: GPT-5 Nano vs Laguna Xs.2

Last updated at: 2026-04-29

Metric GPT-5 Nano GPT-5 Nano medium Release: 2025-08-07 Laguna Xs.2 Laguna Xs.2 medium Release: 2026-04-28 Free Available
Score 6.3 6.2
Rank #75 #81
Reliability N/A 10.0
Consistency 6.5 6.9
Tests Correct
Attempt pass rate 59.3% 57.4%
Flaky tests 8 7
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 58,141
Reasoning Tokens 156,288 0
Response Time (avg) 44.13s 6.03s
Response Time (max) 204.02s 29.11s
Response Time (total) 485.47s 108.59s

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
GPT-5 Nano 6.5 7.9 58.3% 1 25.50s 1,221 21,184
Laguna Xs.2 7.4 5.9 83.3% 2 2.60s 5,283 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
Laguna Xs.2 6.3 3.7 33.3% 1 14.36s 7,896 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
Laguna Xs.2 3.0 10.0 0.0% 0 15.92s 8,501 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
Laguna Xs.2 7.1 5.6 83.3% 1 9.34s 10,472 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
Laguna Xs.2 4.1 4.4 44.5% 2 11.12s 18,712 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
Laguna Xs.2 4.1 10.0 0.0% 0 2.76s 1,421 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
Laguna Xs.2 10.0 10.0 100.0% 0 1.68s 1,517 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
Laguna Xs.2 5.3 10.0 33.3% 0 2.12s 3,168 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
Laguna Xs.2 4.7 1.6 66.7% 1 3.39s 1,171 0

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