GPT-4.1

GPT-4.1

Developer	OpenAI
Release date	April 14, 2025
Family	GPT
Generation	GPT-4.1
Level
Context window	1M tokens
Max output	33K tokens
Input	Image, text, file
Output	Text
Knowledge cutoff	2024-04
Weights	Closed
Predecessor	GPT-4o
Successor	GPT-5
Website	openai.com
Links	Docs

Part of a series on

input: $2.00
cached: $0.50
output: $8.00
Context: 1Mtokens
Released: 1y ago

Specifications

Model

Developer: OpenAI
Family: GPT GPT-4.1
Type: Language model
Released: April 14, 2025
Model ID: openai/gpt-4.1

Capabilities

Input → output: Image, text, file → Text
Max output: 33K tokens
Tokenizer: GPT
Knowledge cutoff: 2024-04

Weights

Openness: Closed

Sources:models.devOpenRouter

Metadata synced Nov 8, 2026, 10:03 AM UTC

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