Navigate
AI BENCHY
Advertise here

AI BENCHY Compare

OpenAI: GPT-5.5 vs OpenAI: GPT-5.6 Terra

Summary

GPT-5.5 (low) vs GPT-5.6 Terra (high) benchmark comparison: GPT-5.5 (low) leads on average score with 9.3 vs 8.2. GPT-5.6 Terra (high) has the lower benchmark cost at $0.852 vs $0.907. GPT-5.5 (low) is faster at 9.76s vs 10.89s, with pass rates of 85.7% vs 68.3%.

Recommended model: GPT-5.5 (low) - It has the strongest score in this comparison (9.3) and the best overall balance of cost and response time across all 2 models.

Last updated at: 2026-07-09

Metric GPT-5.5 GPT-5.5 low Release: 2026-04-24 GPT-5.6 Terra GPT-5.6 Terra high Release: 2026-07-09
Score 9.3 8.2
Rank #7 #29
Reliability 10.0 10.0
Consistency 10.0 9.6
Tests Correct
Attempt pass rate 85.7% 68.3%
Flaky tests 0 1
Total Runs 63 63
Cost per result 5.035 6.086
Total Cost $0.907 $0.852
Input Price $5.000 / 1M $2.500 / 1M
Output Price $30.000 / 1M $15.000 / 1M
Total Input Tokens 34,209 34,218
Output Tokens 2,046 1,908
Reasoning Tokens 22,460 49,189
Response Time (avg) 9.76s 10.89s
Response Time (max) 56.19s 91.49s
Response Time (total) 204.92s 228.65s

Generation showcase

Hamster playing table tennis

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

#7 GPT-5.5

low
Cost
$0.068
Time
37.0s
Tokens
2,339 tok

#29 GPT-5.6 Terra

high
Cost
$0.055
Time
30.2s
Tokens
3,748 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

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.5 10.0 10.0 100.0% 0 4.41s 606 238 1,020
GPT-5.6 Terra 8.3 10.0 75.0% 0 2.54s 606 158 700
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.5 10.0 10.0 100.0% 0 15.04s 7,302 423 6,402
GPT-5.6 Terra 7.6 7.2 77.8% 1 9.14s 7,302 370 6,087
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.5 10.0 10.0 100.0% 0 9.56s 11,019 303 717
GPT-5.6 Terra 10.0 10.0 100.0% 0 6.94s 11,019 314 627
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.5 10.0 10.0 100.0% 0 3.28s 7,140 228 157
GPT-5.6 Terra 10.0 10.0 100.0% 0 938ms 7,140 222 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.5 5.3 10.0 33.3% 0 28.05s 723 69 11,609
GPT-5.6 Terra 5.3 10.0 33.3% 0 43.44s 723 70 32,942
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.5 10.0 10.0 100.0% 0 5.17s 477 133 245
GPT-5.6 Terra 5.1 10.0 0.0% 0 3.03s 477 113 216
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.5 9.9 10.0 100.0% 0 3.74s 660 93 415
GPT-5.6 Terra 10.0 10.0 100.0% 0 2.14s 660 96 319
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.5 10.0 10.0 100.0% 0 4.74s 642 279 954
GPT-5.6 Terra 7.7 10.0 66.7% 0 5.45s 642 277 2,613
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.5 10.0 10.0 100.0% 0 4.96s 5,445 250 101
GPT-5.6 Terra 10.0 10.0 100.0% 0 4.97s 5,454 258 168
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
GPT-5.5 3.0 10.0 0.0% 0 10.06s 195 30 840
GPT-5.6 Terra 3.0 10.0 0.0% 0 23.30s 195 30 5,517

Quick Compare

Switch Comparison Pair

GPT-5.6 TerrahighvsQwen3.7 PlusmediumGPT-5.5lowvsQwen3.7 MaxmediumNemotron 3 Ultra 550b A55bmediumFree AvailablevsGPT-5.6 TerrahighGemini 2.5 FlashmediumvsGPT-5.6 TerrahighClaude Fable 5mediumvsGPT-5.5lowGemini 3.1 Pro PreviewmediumvsGPT-5.5lowGPT-5.6 TerrahighvsGrok 4.5mediumGPT-5.6 TerrahighvsQwen3.5 Plus 2026-02-15mediumGemini 3.5 FlashmediumvsGPT-5.5lowGemini 3 Flash PreviewmediumvsGPT-5.5lowGPT-5.6 TerrahighvsQwen3.5-27BmediumGPT-5.6 TerrahighvsStep 3.7 Flashmedium