OpenAI
GPT-6.1 Sol
gpt-6.1-sol
Total Context
1.1M
Max Output
128K
Released
N/A
Input$2 / M tokens
Output$10 / M tokens
GPT-5.3 Chat
gpt-5.3-chatGPT-5.3 Chat is the API-facing name for GPT-5.3 Instant, the ChatGPT snapshot designed to make everyday conversations smoother and more directly useful. OpenAI describes the update as improving answer accuracy, web-search contextualization, and conversational flow by reducing unnecessary caveats, dead ends, and overly cautious phrasing. It supports text and image input with text output, but OpenAI’s API docs mark it as deprecated in favor of newer GPT models.
Context Window
128K tokens
Maximum Output
16.4K tokens
Release Date
Mar 3, 2026
Modalities
GPT-5.3 Chat Pricing
| Input Price | Output Price | Cache Read |
|---|---|---|
| $1.75/M | $14/M | $0.175/M |
GPT-5.3 Chat API Capabilities
Reasoning
Not supported
Tool calling
Supported
Temperature parameter
Supported
Attachments
Supported
Knowledge Base
2025-08-31
Endpoint Protocols
Completions APIMessages API
GPT-5.3 Chat Model Highlights
GPT-5.3 Chat reflects the GPT-5.3 Instant conversational model used in ChatGPT, with text and image understanding for responsive dialogue.
Responsive Conversation
Uses the GPT-5.3 Instant behavior developed for ChatGPT-style interactions, emphasizing direct conversational responses.
Image-Aware Dialogue
Accepts images with text so conversations can reference screenshots, charts, photographs and document pages.
Extended Conversation Context
Supports a 128,000-token context window for conversations involving substantial instructions and reference material.
GPT-5.3 Chat Use Cases
GPT-5.3 Chat fits conversational assistance, document question answering and interactive interpretation of user-provided images.
Conversational Assistance
Maintains multi-turn conversations to answer questions, explain topics and help users refine requests or drafts.
Document Question Answering
Reads supplied documents and answers follow-up questions using the relevant passages from the conversation context.
Screenshot Guidance
Examines screenshots or photographed materials and provides contextual explanations or suggested next steps.
How to Use GPT-5.3 Chat via the TokenHub API
import OpenAI from "openai"
const client = new OpenAI({
apiKey: process.env.TOKENHUB_API_KEY,
baseURL: "https://us-api.tokenhub.com/v1",
})
const result = await client.chat.completions.create({})
console.log(result.choices[0]?.message?.content)GPT-5.3 Chat FAQ
GPT-5.3 Chat: capabilities, use cases, limits, and TokenHub guidance.
What does GPT-5.3 Chat focus on?+
GPT-5.3 Chat is a OpenAI model for the ChatGPT-oriented GPT-5.3 Instant snapshot.
Which projects fit GPT-5.3 Chat?+
Best for general conversation, image and video understanding and customer-facing workflows, especially when reproducing an older workflow is the priority.
What is special about GPT-5.3 Chat?+
Key strength: the conversational behavior of the GPT-5.3 Instant snapshot.
When is another model better?+
This ChatGPT snapshot is deprecated and should not anchor a new production API design. Use GPT-5.5 for new integrations.
How do I avoid ID mistakes?+
Confirm availability; use the current recommended model for new integrations.
Ready to use GPT-5.3 Chat?
Use one API key to access GPT-5.3 Chat and more AI models through TokenHub.
Media and Discussions
Selected public videos and posts related to this model.
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