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GPT-5.6 Terra (medium) vs Grok 4.5 (high)

The average score is effectively tied at 8.2 vs 8.2. GPT-5.6 Terra (medium) has the lower benchmark cost at $0.744 vs $2.571. GPT-5.6 Terra (medium) is faster at 8.93s vs 72.50s, with pass rates of 71.0% vs 82.6%.

Last updated at: 2026-10-01

Compared models

Rank
#84
Total Output Tokens
33,189
Response Time (avg)
8.93s
Total Cost
$0.744
Rank
#82
Total Output Tokens
333,632
Response Time (avg)
72.50s
Total Cost
$2.571
Recommended model GPT-5.6 Terra (medium)

It has the best score here (8.2), while costing about 3.5x less than Grok 4.5 (high).

Detailed comparison

Metric GPT-5.6 Terra GPT-5.6 Terra medium Release: 2026-07-09 Grok 4.5 Grok 4.5 high Release: 2026-07-08
Score 8.2 8.2
Rank #84 #82
Reliability 10.0 10.0
Consistency 9.3 8.9
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 71.0% 82.6%
Flaky tests 2 3
Total Runs 69 69
Cost per result 5.768 15.123
Total Cost $0.744 $2.571
Input Price $2.000 / 1M $2.000 / 1M
Output Price $12.000 / 1M $6.000 / 1M
Total Input Tokens 172,507 342,124
Output Tokens 5,824 7,135
Reasoning Tokens 27,365 326,497
Response Time (avg) 8.93s 72.50s
Response Time (max) 54.74s 676.83s
Response Time (total) 205.39s 1667.51s
Parameters ~1T total (~60B active) ~1.7T total (~170B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#84 GPT-5.6 Terra

medium
Cost
$0.035
Time
16.3s
Tokens
2,418 tok

#82 SpaceXAI: Grok 4.5

high
Cost
$0.015
Time
29.7s
Tokens
2,737 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-5.6 Terra 6.1 7.2 55.6% 1 7.19s 7,302 427 4,527
Grok 4.5 10.0 10.0 100.0% 0 155.16s 9,579 357 100,752

Quick Compare

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