Navigate
AI BENCHY
AD
Track all your projects in one dashboard. Get 📊stats, 🔥heatmaps and 👀recordings in one self-hosted dashboard.
uxwizz.com

AI BENCHY Compare

OpenAI: GPT-5 Nano vs xAI: Grok 4.20

Last updated at: 2026-04-02

Metric GPT-5 Nano GPT-5 Nano medium Release: 2025-08-07 Grok 4.20 Grok 4.20 none Release: 2026-03-31
Score 6.2 5.4
Rank #52 #69
Consistency 6.7 9.5
Tests Correct
Attempt pass rate 58.8% 31.4%
Flaky tests 7 1
Total Runs 51 51
Cost per result 0.864 1.809
Total Cost $0.061 $0.091
Input Price $0.050 / 1M $2.000 / 1M
Output Price $0.400 / 1M $6.000 / 1M
Output Tokens 4,500 1,655
Reasoning Tokens 143,296 0
Response Time (avg) 44.47s 1.11s
Response Time (max) 204.02s 6.04s
Response Time (total) 444.74s 18.80s

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
Grok 4.20 4.8 10.0 25.0% 0 501ms 267 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
Grok 4.20 3.0 10.0 0.0% 0 6.04s 282 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
Grok 4.20 10.0 10.0 100.0% 0 522ms 207 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
Grok 4.20 3.0 10.0 0.0% 0 687ms 325 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
Grok 4.20 4.8 10.0 0.0% 0 659ms 83 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
Grok 4.20 4.8 10.0 0.0% 0 455ms 60 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
Grok 4.20 5.3 7.4 44.4% 1 487ms 242 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
Grok 4.20 10.0 10.0 100.0% 0 4.63s 189 0

Quick Compare

Switch Comparison Pair