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GPT-5.4 Mini (medium) vs GPT-5.6 Terra (low)

The average score is effectively tied at 7.9 vs 7.9. GPT-5.6 Terra (low) has the lower benchmark cost at $0.435 vs $1.102. GPT-5.6 Terra (low) is faster at 7.58s vs 29.94s, with pass rates of 69.6% vs 75.4%.

Last updated at: 2026-10-07

Compared models

Rank
#105
Total Output Tokens
184,172
Response Time (avg)
29.94s
Total Cost
$1.102
Rank
#101
Total Output Tokens
24,213
Response Time (avg)
7.58s
Total Cost
$0.435
Recommended model GPT-5.6 Terra (low)

It has the best score here (7.9), while costing about 2.5x less than GPT-5.4 Mini (medium).

Detailed comparison

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 7.9 7.9
Rank #105 #101
Reliability 10.0 10.0
Consistency 8.2 8.0
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 69.6% 75.4%
Flaky tests 5 6
Total Runs 69 69
Cost per result 7.754 5.277
Total Cost $1.102 $0.435
Input Price $0.750 / 1M $2.000 / 1M
Output Price $4.500 / 1M $12.000 / 1M
Cache Read Price $0.075 / 1M $0.200 / 1M
Cache Write Price N/A $2.500 / 1M
Total Input Tokens 238,925 176,890
Output Tokens 7,109 5,688
Reasoning Tokens 177,063 18,525
Response Time (avg) 29.94s 7.58s
Response Time (max) 138.75s 54.57s
Response Time (total) 688.57s 174.39s
Parameters ~400B total (~17B active) ~1T total (~60B active)
Availability Closed Closed

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Model generation showcase

Hamster playing table tennis

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

#105 GPT-5.4 Mini

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

#101 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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