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GPT-5 Chat

OpenAI

Frontier ModelVision ModelProprietary

Context

Release Date
Sep 02, 2025
Knowledge Cutoff
Dec 15, 2024
Window
400k

PricingPer 1M tokens

Input
$1.25
Output
$10
Blended 3:1
$3.4375

Capabilities

Input
Output
Reasoning tokens

Benchmarks

GPQA
85.7%
HLE
24.8%
AIME
94.6%

OpenAI's GPT-5 Chat unifies rapid replies, long-context memory, and multimodal reasoning for coding and everyday tasks.