이 모델의 강점은 무엇인가요?

고급 추론 능력 제공 광범위한 400K 컨텍스트 이해 OpenAI의 최신 설계

이 모델의 약점은 무엇인가요?

비오픈소스 라이선스 제한된 사양 공개 폐쇄적 사용 환경

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복잡한 논리적 사고가 필요한 작업 긴 문서 분석 고급 추론이 필요한 문제 해결

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OpenAI독점

GPT-5.1 Instant

Name: GPT-5.1 Instant
Price: 1.25 USD
Author: OpenAI

GPT-5.1 Instant은 OpenAI에서 개발한 추론 모델입니다. 400K의 긴 컨텍스트 윈도우를 특징으로 하며, 고급 추론 능력을 제공합니다.

파라미터

Undisclosed

컨텍스트

400K

라이선스

Proprietary

출시일

2025-11-12

API 가격

입력 가격 (1M 토큰당)

$1.25

출력 가격 (1M 토큰당)

과금 모드: standard

강점

・고급 추론 능력 제공
・광범위한 400K 컨텍스트 이해
・OpenAI의 최신 설계

약점

・비오픈소스 라이선스
・제한된 사양 공개
・폐쇄적 사용 환경

활용 사례

・복잡한 논리적 사고가 필요한 작업
・긴 문서 분석
・고급 추론이 필요한 문제 해결

심층 분석

Release Date

November 12, 2025

Context Window

128K tokens

Max Output

16K tokens

Input Price

$1.25 / 1M tokens

Output Price

$10.00 / 1M tokens

Cache Read

$0.13 / 1M tokens

Latency (P50 TTFT)

0.6s (OpenAI), 1.2s (Azure)

Throughput (P50)

102 TPS

강점

・Fastest model in the GPT-5.1 family with 0.6s P50 time-to-first-token
・High throughput at 102 tokens per second for real-time applications
・Supports tool use, vision, file input, reasoning, and web search
・Available on both OpenAI and Azure with zero data retention support
・Good for high-throughput backend APIs with many concurrent requests

약점

・Limited to 16K max output tokens — not suitable for long-form generation
・Smaller context window (128K) compared to GPT-5.1 Thinking (410K)
・Higher hallucination rate than Thinking variant due to reduced reasoning
・Superseded by GPT-5.2 Chat (Instant) which offers better quality at lower cost
・Same pricing as GPT-5.1 Thinking ($1.25/$10) despite reduced capabilities

경쟁사 비교

Model	Arena	SWE	GPQA	Price
Claude Haiku 4	~1350	~45%	~72%	$0.25/$1.25 per 1M tokens
Gemini 3 Flash	~1370	~50%	~78%	$0.15/$0.60 per 1M tokens
GPT-5.2 Instant	~1400	~60%	~85%	$0.875/$7 per 1M tokens
GPT-5.1 Thinking	~1400	~74%	~88%	$1.25/$10 per 1M tokens

개요

GPT-5.1 Instant is the fastest model in the GPT-5.1 family, optimized for low-latency responses across general-purpose tasks. Released November 12, 2025, it offers 0.6s time-to-first-token and 102 TPS throughput at $1.25/$10 per 1M tokens. It brings GPT-5.1 generation quality to real-time workloads, though it has been superseded by the cheaper and higher-quality GPT-5.2 Instant.

벤치마크 및 성능

GPT-5.1 Instant achieves 0.6s P50 TTFT on OpenAI (1.2s on Azure) with 102 tokens/second throughput. While specific benchmark scores for the Instant variant are not individually published, it is designed to trade reasoning depth for speed. The model supports tool use, vision, file input, implicit caching, and web search capabilities. It is best suited for latency-sensitive workloads where GPT-5.1 Thinking's extended reasoning is unnecessary.

상세 비교

GPT-5.1 Instant has been superseded by GPT-5.2 Chat (Instant) which offers better quality at $0.875/$7 per 1M tokens (vs $1.25/$10). Compared to Claude Haiku 4 ($0.25/$1.25), it is significantly more expensive but offers better quality. Gemini 3 Flash ($0.15/$0.60) is the cheapest fast model but trails on quality. For users on the GPT-5.1 family, the Thinking variant offers much better accuracy at the same price point.

커뮤니티 평가

GPT-5.1 Instant was popular for real-time chat applications and preprocessing pipelines during its active period. Users appreciated the fast response times and multimodal capabilities. With GPT-5.2 Chat's release at lower cost and better quality, most users have migrated. The model remains in use for existing integrations and Azure deployments where zero data retention is required.

활용 사례

Ideal for: real-time chat interfaces, streaming applications, high-throughput backend APIs, interactive search, preprocessing/classification pipelines, routing requests to specialized models, and quick Q&A. NOT suitable for: long-form content generation (16K output limit), complex reasoning tasks, long-document analysis (128K context), coding-heavy workloads, or any task requiring maximum accuracy. For new projects, GPT-5.2 Instant is recommended.