GPT-5.6 Terra (high) vs Particle-1 (high)

Compared models

Rank: #114
Total Output Tokens: 60,065
Response Time (avg): 13.62s
Total Cost: $0.698

Rank: #111
Total Output Tokens: 307,596
Response Time (avg): 26.66s
Total Cost: $0.170

Recommended model Particle-1 (high)

It has the best score here (8.4), while costing about 4.1x less than GPT-5.6 Terra (high).

Detailed comparison

Metric	GPT-5.6 Terra GPT-5.6 Terra high Release: 2026-07-09	Particle-1 Particle-1 high Release: 2026-10-28

Metric	GPT-5.6 Terra GPT-5.6 Terra high Release: 2026-07-09	Particle-1 Particle-1 high Release: 2026-10-28
Score	8.3	8.4
Rank	#114	#111
Reliability	10.0	9.7
Consistency	9.4	8.7
Attempts	69/69	69/69
Tests Correct
Attempt pass rate	69.6%	72.5%
Flaky tests	2	4
Total Runs	69	69
Cost per result	8.674	1.131
Total Cost	$0.698	$0.170
Input Price	$2.000 / 1M	$0.050 / 1M
Output Price	$12.000 / 1M	$0.500 / 1M
Cache Read Price	$0.200 / 1M	$0.003 / 1M
Cache Write Price	$2.500 / 1M	N/A
Total Input Tokens	197,239	314,243
Output Tokens	6,083	7,814
Reasoning Tokens	53,982	299,782
Response Time (avg)	13.62s	26.66s
Response Time (max)	91.49s	205.97s
Response Time (total)	313.21s	613.21s
Parameters	~1T total (~60B active)	~748B total (~16B 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.

#114 GPT-5.6 Terra

high

Cost: $0.055
Time: 30.2s
Tokens: 3,748 tok

#111 Particle-1

high

Cost: $0.005
Time: 46.6s
Tokens: 9,055 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

Category:

Agentic	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	10.0	10.0	100.0%	0		66.44s	116,183	1,028	2,949
Particle-1	6.1	3.1	66.7%	1		54.76s	188,834	2,331	8,580

Anti-AI Tricks	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	8.3	10.0	75.0%	0		2.54s	606	158	700
Particle-1	8.3	10.0	75.0%	0		2.08s	1,488	134	1,867

Coding	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	7.6	7.2	77.8%	1		9.14s	7,302	370	6,087
Particle-1	10.0	10.0	100.0%	0		41.83s	7,986	393	70,244

Combined	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	8.7	6.9	83.3%	1		13.72s	57,848	3,461	3,174
Particle-1	10.0	10.0	100.0%	0		22.79s	94,197	4,017	26,190

Data parsing and extraction	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	10.0	10.0	100.0%	0		938ms	7,140	222	0
Particle-1	10.0	10.0	100.0%	0		2.05s	7,764	201	1,210

Domain specific	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	5.3	10.0	33.3%	0		42.65s	732	70	32,239
Particle-1	2.9	7.2	11.1%	1		111.06s	1,386	17	178,877

General Intelligence	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	5.1	10.0	0.0%	0		3.03s	477	113	216
Particle-1	10.0	10.0	100.0%	0		1.94s	708	151	490

Instructions following	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	10.0	10.0	100.0%	0		2.14s	660	96	319
Particle-1	10.0	10.0	100.0%	0		2.03s	1,101	63	964

Puzzle Solving	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	7.7	10.0	66.7%	0		5.45s	642	277	2,613
Particle-1	5.8	4.9	55.6%	2		4.21s	1,305	236	3,598

Tool Calling	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	10.0	10.0	100.0%	0		4.97s	5,454	258	168
Particle-1	10.0	10.0	100.0%	0		5.01s	9,054	258	289

Trivia	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	3.0	10.0	0.0%	0		23.30s	195	30	5,517
Particle-1	3.0	10.0	0.0%	0		18.15s	420	13	7,473

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