GPT 5.4 Nano

proprietary

Status: Deprecated

Intelligence

Reasoning

Speed

Context

400K

Max output

128K

Input price

$0.2/1M tokens

Output price

$1.25/1M tokens

Capabilities

Show unsupported (2)

Reasoning & Interaction

Reasoning

Tool Calling

Output Control

Structured Output

JSON Mode

Infrastructure

Streaming

Batch Processing

Details

Model IDgpt-5.4-nano

ProviderOpenCode Zen

CreatorOpenAI

Licenseproprietary

Statusactive

Typechat

Input modalitiestext

Output modalitiestext

Open weightNo

Parameters—

Architecture—

Context window400K tokens

Max input272K tokens

Max output128K tokens

Reasoning tokensYes

Knowledge cutoff2025-08

Release date2026-03-17

Deprecation date2026-10-01

Sourceofficial

Pricing

Input

$0.2

Output

$1.25

Cache write

—

Cache read

$0.02

Batch in

—

Batch out

—

Family Comparison: gpt-5.4

Model	Caps	Perf	Speed	Context	Max out	Pricing
GPT 5.4 Nano	RTJJMSB	—	—	400K	128K	$0.2$1.25
GPT 5.4 Mini	RTJJMSB	—	—	400K	128K	$0.75$4.5
GPT 5.4	RTJJMSB	—	—	1.1M	128K	$2.5$15
GPT 5.4 Pro	RTS	—	—	1.1M	128K	$30$180

API

GET/v1/models/opencode/gpt-5.4-nano

GPT 5.4 Nano

gpt-5.4-nano

Status: Deprecated

Changes · 3 entries

gpt-5.4-nanoupdateb301ebeMar 23, 2026, 11:47 PM

modalitiesinput["text"]output["text"]

gpt-5.4-nanoupdate2b100acMar 23, 2026, 05:30 AM

pricingoutput$1.25cached input$0.02

model_typechat

gpt-5.4-nanocreate7f5c66fMar 21, 2026, 05:16 AM