GPT-5.4 Mini specs, prices, where it runs and its benchmark standing

Name: GPT-5.4 Mini
Author: OpenAI

closed weights · top 10 on 0 of 7 · released Mar 17, 2026

Provider: OpenAI
Release date: Mar 17, 2026; Boards
Parameters: Not disclosed by OpenAI
Modalities: Text, Image, Files to Text; OpenRouter
License: Proprietary; LMArena
Context window: 400K tokens; Pricing
Pricing: $0.75 in / $4.5 out per 1M tokens; All prices
Hosting: 5 priced API routes · Azure OpenAI (29 regions) · OpenRouter; Pricing Regions
Weights: Closed weights
Benchmarks: 7 boards captured

Rank	Board	Category	Score	Of
34	MCP AtlasAgents and tools · as “gpt-5.4-mini (xhigh)”	Agents and tools	56.7%	37
46	Vision ArenaVision · as “GPT-5.4 mini (High)”	Vision	1,250	85
51	ARC-AGI-2Reasoning · as “GPT-5.4 Mini (XHigh)”	Reasoning	18.9%	92
60	LiveBenchReasoning · as “gpt-5.4-mini-xhigh”	Reasoning	66.4%	64
66	Epoch ECIReasoning · as “GPT-5.4 Mini”	Reasoning	149.3	100
69	GPQA DiamondReasoning · as “gpt-5.4-mini-2026-03-17_xhigh”	Reasoning	86.9%	100
72	Text ArenaChat · as “GPT-5.4 mini (High)”	Chat	1,447	84