LLM Comparison

DeepSeek V3.1 Terminus vs Trinity Large Thinking

Side-by-side specs, pricing & capabilities · Updated September 2026

Price vs Intelligence

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2/6 models

Same tier:

	DeepSeek V3.1 Terminus	Trinity Large Thinking
Organization	DeepSeek	Arcee AI
OpenTools Score	40 80.8	27 50.3
Family	DeepSeek	Trinity
Status	Current	Current
Release Date	Sep 2025	Apr 2026
Context Window	164K tokens	262K tokens
Input Price	$0.21/M tokens	$0.22/M tokens
Output Price	$0.79/M tokens	$0.85/M tokens
Pricing Notes	Cache read: $0.1300/M tokens	Cache read: $0.0600/M tokens
Capabilities	textcode	textcodeextended-thinking
Max Output	—	262K tokens
API Identifier	`deepseek/deepseek-v3.1-terminus`	`arcee-ai/trinity-large-thinking`
Benchmarks
MMLU-Pro	85deepseek	83.4https://huggingface.co/arcee-ai/Trinity-Large-Thinking
GPQA Diamond	80.7deepseek	76.3https://huggingface.co/arcee-ai/Trinity-Large-Thinking
AIME 2025	53.7deepseek	—
LiveCodeBench	74.9deepseek	—
SWE-bench Verified	68.4deepseek	—
Terminal-Bench Hard	31.8deepseek	—
HLE	21.7deepseek	—
Artificial Analysis Intelligence Index v4.3	—	10.8821artificial-analysis
SciCode	—	40.625artificial-analysis
Terminal-Bench 2.1	—	20.5993artificial-analysis
	View DeepSeek V3.1 Terminus	View Trinity Large Thinking

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Output tokens / month

Model	Input	Output	Total / mo	vs Best
DeepSeek V3.1 TerminusCheapest	$0.21	$0.40	$0.61	—
Trinity Large Thinking	$0.22	$0.43	$0.65	+7%

DeepSeek

DeepSeek V3.1 Terminus

DeepSeek V3.1 Terminus is a large language model from DeepSeek. Supports up to 163,840 token context window. Achieves 87.1% on MMLU. Available from $0.21/M input tokens.

Arcee AI

Trinity Large Thinking

Trinity Large Thinking is a large language model from Arcee AI. Supports up to 262,144 token context window. Available from $0.22/M input tokens.