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GPT-5.6 Terra vs Hy4 (high)

The average score is effectively tied at 5.8 vs 5.8. GPT-5.6 Terra has the lower benchmark cost at $0.377 vs $3.055. GPT-5.6 Terra is faster at 4.11s vs 219.63s, with pass rates of 40.6% vs 56.5%.

Last updated at: 2026-11-10

Compared models

Rank
#328
Total Output Tokens
7,381
Response Time (avg)
4.11s
Total Cost
$0.377
Rank
#327
Total Output Tokens
2,328,895
Response Time (avg)
219.63s
Total Cost
$3.055
Recommended model GPT-5.6 Terra

It has the best score here (5.8), while costing about 8.1x less than Hy4 (high).

Detailed comparison

Metric GPT-5.6 Terra GPT-5.6 Terra none Release: 2026-07-09 Hy4 Hy4 high Release: 2026-11-04
Score 5.8 5.8
Rank #328 #327
Reliability 10.0 9.7
Consistency 9.0 8.2
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 40.6% 56.5%
Flaky tests 3 5
Total Runs 69 69
Cost per result 7.313 30.547
Total Cost $0.377 $3.055
Input Price $2.000 / 1M $0.417 / 1M
Output Price $12.000 / 1M $1.251 / 1M
Cache Read Price $0.200 / 1M $0.021 / 1M
Cache Write Price $2.500 / 1M N/A
Total Input Tokens 213,564 341,340
Output Tokens 7,381 5,382
Reasoning Tokens 0 2,323,513
Response Time (avg) 4.11s 219.63s
Response Time (max) 57.98s 540.04s
Response Time (total) 94.52s 5051.38s
Parameters ~1T total (~60B active) ~770B total (~49B 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.

#328 GPT-5.6 Terra

none
Cost
$0.030
Time
14.7s
Tokens
2,082 tok

#327 Hy4

high
Cost
$0.030
Time
162.4s
Tokens
23,596 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 5.5 10.0 33.3% 0 1.00s 7,302 336 0
Hy4 7.5 10.0 66.7% 0 237.29s 7,527 30 316,572

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