OpenAI

GPT-5 Chat

gpt-5-chat-latest

A chat-tuned GPT model for conversational assistance, writing, and tool workflows.

Chat-tuned GPT model for conversational assistance, writing, and tool workflows

400K context400K context
Released2025-08-07
Relays7 sites
text generationreasoninglong context

Model information

Model ID
gpt-5-chat-latest
Context
400K
Max input
272K
Max output
128K
Knowledge cutoff
2024-09-30
Open weights
Not supported
License
-
Release date
2025-08-07

Input

Text: SupportedImage: SupportedAudio: Not supportedVideo: Not supportedPDF: Not supportedFile: Supported

Output

Text: SupportedImage: Not supportedAudio: Not supportedVideo: Not supported

API capabilities

Reasoning: SupportedTool call: Not supportedStructured output: UnknownTemperature: Not supported

Relay Comparison

Compare token, per-request, or per-second pricing by relay channel.

How should GPT-5 Chat relay pricing be compared?

This GPT-5 Chat pricing page compares official pricing with public prices from 7 listed AI gateways. Token prices are shown in CNY per 1M tokens, while per-request, per-second, and per-character rows use the unit shown in the table. Last updated: 10/23/2026, 08:14.

Data sources
Public price catalogs, official pricing records, and monitoring results.
Metric definitions
Uptime means successful probe response rate, fake-rate signals possible model mismatch or abnormal output risk, and latency is average API response time.
Risk note
Relay gateways are third-party services. Pricing, billing, privacy, and stability can change; start with a small top-up and verify reliability before continued use.