Terminal-Bench — cost vs performance

Best current row per canonical model in the group “accuracy · variant=hard · evaluator=Artificial Analysis” (317 models) against cheapest current output price (USD / 1M tokens). The dashed line is the Pareto frontier: no model is both better and cheaper than a point on it.

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XOutput price Input price Parameters Context Memory (est.)Scalelog linearBubblecontext params none

open / restricted weights closed Pareto frontier (12 models)bubble = context window

Frontier models 12

Pareto frontier
Model	accuracy on Terminal-Bench	Rank	cheapest current output price (USD / 1M tokens)	Provider	Trust
gpt-5.6-solOpenAI · Closed	65.9%	1	$5	OpenAI API	Independent
gpt-5.4-miniOpenAI · Closed	52.3%	11	$2.25	OpenAI API	Independent
Z.ai GLM 5.2Z.ai (Zhipu AI) · Open weights	50.8%	12	$2	OpenRouter	Independent
KAT-Coder-Pro V2Kwaipilot · Closed	49.2%	14	$1.2	OpenRouter	Independent
MiMo-V2.5-ProXiaomi · Open weights	43.2%	27	$0.87	OpenRouter	Independent
gpt-5.4-nanoOpenAI · Closed	42.4%	30	$0.625	OpenAI API	Independent
MiMo-V2.5Xiaomi · Open weights	41.7%	33	$0.28	OpenRouter	Independent
Gemma 4 26B A4BGoogle · Open weights	25%	100	$0.22	Google Gemini API	Independent
Qwen3.5-9BQwen · Open weights	24.2%	105	$0.15	OpenRouter	Independent
gpt-oss-20bOpenAI · Open weights	10.6%	164	$0.13	OpenRouter	Independent
Granite 4.0 MicroIBM · Open weights	1.52%	256	$0.112	OpenRouter	Independent
Gemma 3 4BGoogle · Restricted weights	0.76%	265	$0.10	Google Gemini API	Independent

Methodology. Points are the best current row per canonical model in comparability group 'accuracy · variant=hard · evaluator=Artificial Analysis'. Price = cheapest current offer across providers (the provider shown). Pareto frontier maximises the score and minimises x; exact ties are all kept. memory_estimate is an estimate (see /methodology). Only the selected comparability group is plotted; points under other configurations are not mixed in. Price = cheapest current offer across providers at the time of the last crawl. Nothing is estimated except where marked.