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

GPT-5.6 Terra (low) leads on average score with 7.9 vs 7.8. GPT-5.6 Terra (low) has the lower benchmark cost at $0.435 vs $2.996. GPT-5.6 Terra (low) is faster at 7.58s vs 68.44s, with pass rates of 75.4% vs 79.7%.

Last updated at: 2026-10-05

Compared models

Rank
#97
Total Output Tokens
24,213
Response Time (avg)
7.58s
Total Cost
$0.435
Rank
#107
Total Output Tokens
306,044
Response Time (avg)
68.44s
Total Cost
$2.996
Recommended model GPT-5.6 Terra (low)

It has the best score here (7.9), while costing about 6.9x less than Grok 4.5 (medium).

Detailed comparison

Metric GPT-5.6 Terra GPT-5.6 Terra low Release: 2026-07-09 Grok 4.5 Grok 4.5 medium Release: 2026-07-08
Score 7.9 7.8
Rank #97 #107
Reliability 10.0 10.0
Consistency 8.0 9.0
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 75.4% 79.7%
Flaky tests 6 3
Total Runs 69 69
Cost per result 5.277 14.430
Total Cost $0.435 $2.996
Input Price $2.000 / 1M $2.000 / 1M
Output Price $12.000 / 1M $6.000 / 1M
Cache Read Price $0.200 / 1M $0.300 / 1M
Cache Write Price $2.500 / 1M N/A
Total Input Tokens 176,890 308,369
Output Tokens 5,688 7,013
Reasoning Tokens 18,525 299,031
Response Time (avg) 7.58s 68.44s
Response Time (max) 54.57s 436.38s
Response Time (total) 174.39s 1574.14s
Parameters ~1T total (~60B active) ~1.7T total (~170B 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.

#97 GPT-5.6 Terra

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

#107 SpaceXAI: Grok 4.5

medium
Cost
$0.044
Time
59.4s
Tokens
7,512 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 6.6 4.6 77.8% 2 9.56s 7,302 429 6,821
Grok 4.5 7.6 7.2 77.8% 1 155.69s 9,579 390 104,634

Quick Compare

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