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OpenAI: GPT-5.4 Mini vs OpenAI: GPT-5.6 Terra

The average score is effectively tied at 7.5 vs 7.5. GPT-5.6 Terra (low) has the lower benchmark cost at $0.519 vs $0.756. GPT-5.6 Terra (low) is faster at 5.31s vs 25.94s, with pass rates of 71.2% vs 74.2%.

Recommended modelGPT-5.6 Terra (low)It has the best score here (7.5), while responding about 4.9x faster than GPT-5.4 Mini (medium).

Last updated at: 2026-07-25

Metric GPT-5.4 Mini GPT-5.4 Mini medium Release: 2026-03-17 GPT-5.6 Terra GPT-5.6 Terra low Release: 2026-07-09
Score 7.5 7.5
Rank #64 #63
Reliability 10.0 10.0
Consistency 7.7 7.9
Tests Correct
Attempt pass rate 71.2% 74.2%
Flaky tests 6 6
Total Runs 66 66
Cost per result 6.299 3.989
Total Cost $0.756 $0.519
Input Price $0.750 / 1M $2.500 / 1M
Output Price $4.500 / 1M $15.000 / 1M
Total Input Tokens 97,155 80,295
Output Tokens 6,211 4,714
Reasoning Tokens 145,544 16,469
Response Time (avg) 25.94s 5.31s
Response Time (max) 138.75s 19.85s
Response Time (total) 570.66s 116.82s

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#64 GPT-5.4 Mini

medium
Cost
$0.056
Time
95.5s
Tokens
12,464 tok

#63 GPT-5.6 Terra

low
Cost
$0.034
Time
16.8s
Tokens
2,348 tok

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

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.4 Mini 8.4 7.4 88.9% 1 57.87s 7,305 467 40,902
GPT-5.6 Terra 6.6 4.6 77.8% 2 9.56s 7,302 429 6,821

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