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GPT-5.6 Terra (low) vs Qwen3.5 Plus 2026-02-15 (medium)

GPT-5.6 Terra (low) leads on average score with 7.9 vs 7.2. GPT-5.6 Terra (low) has the lower benchmark cost at $0.435 vs $0.567. GPT-5.6 Terra (low) is faster at 7.58s vs 97.68s, with pass rates of 75.4% vs 72.5%.

Last updated at: 2026-10-19

Compared models

Rank
#115
Total Output Tokens
24,213
Response Time (avg)
7.58s
Total Cost
$0.435
Rank
#169
Total Output Tokens
302,730
Response Time (avg)
97.68s
Total Cost
$0.567
Recommended model GPT-5.6 Terra (low)

It has the best score here (7.9), while responding about 12.9x faster than Qwen3.5 Plus 2026-02-15 (medium).

Detailed comparison

Metric GPT-5.6 Terra GPT-5.6 Terra low Release: 2026-07-09 Qwen3.5 Plus 2026-02-15 Qwen3.5 Plus 2026-02-15 medium Release: 2026-02-15
Score 7.9 7.2
Rank #115 #169
Reliability 10.0 10.0
Consistency 8.0 7.9
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 75.4% 72.5%
Flaky tests 6 6
Total Runs 69 69
Cost per result 5.277 4.047
Total Cost $0.435 $0.567
Input Price $2.000 / 1M $0.260 / 1M
Output Price $12.000 / 1M $1.560 / 1M
Cache Read Price $0.200 / 1M N/A
Cache Write Price $2.500 / 1M N/A
Total Input Tokens 176,890 249,486
Output Tokens 5,688 14,481
Reasoning Tokens 18,525 288,249
Response Time (avg) 7.58s 97.68s
Response Time (max) 54.57s 304.85s
Response Time (total) 174.39s 1562.81s
Parameters ~1T total (~60B active) ~397B total (~17B 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.

#115 GPT-5.6 Terra

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

#169 Qwen3.5 Plus 2026-02-15

medium
Cost
$0.011
Time
125.5s
Tokens
7,040 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
Qwen3.5 Plus 2026-02-15 6.6 7.1 44.4% 1 180.70s 6,950 420 80,595

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