GPT-5

GPT-5

Developer	OpenAI
Release date	August 7, 2025
Family	GPT
Generation	GPT-5
Level
Context window	400K tokens
Max output	128K tokens
Input	Text, image, file
Output	Text
Knowledge cutoff	2024-09-30
Weights	Closed
Predecessor	GPT-4.1
Successor	GPT-5.1
Website	openai.com
Links	Docs

Part of a series on

input: $1.25
cached: $0.125
output: $10.00
Context: 400Ktokens
Released: 1y ago

Specifications

Model

Developer: OpenAI
Family: GPT GPT-5
Type: Language model
Released: August 7, 2025
Model ID: openai/gpt-5

Capabilities

Input → output: Text, image, file → Text
Max output: 128K tokens
Tokenizer: GPT
Knowledge cutoff: 2024-09-30

Weights

Openness: Closed

Sources:models.devOpenRouter

Metadata synced Nov 7, 2026, 5:02 PM UTC

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