GPT-5 Chat
VerifiedMultimodal chat model for text, image, and file interactions.
About GPT-5 Chat
GPT-5 Chat is a proprietary multimodal system developed by OpenAI. It accepts inputs across text, images, and files while preserving context up to 128,000 tokens. The architecture focuses on unified processing of mixed modalities in a single conversation thread.
Strengths include coherent handling of extended dialogues and seamless integration of visual and textual data. Being closed-source, the model receives centralized updates and maintains consistent performance across deployments. This design prioritizes reliability for production environments over community modification.
Typical usage covers document summarization from uploaded files, image-based queries, and ongoing chat sessions. Developers integrate it into applications needing combined media understanding. The fixed context length supports detailed analysis without frequent truncation.
Capabilities
How GPT-5 Chat compares
GPT-5 Chat (striped bar) vs other multimodal on intelligence, speed and price.
Price
USD per 1M output tokens · Lower is better · GPT-5 Chat ranks #78 of 110
Nova Premier 1.0Sources: Artificial Analysis (intelligence, speed) · OpenRouter (price).
Best for
Long-Document Analysis
GPT-5 Chat excels at processing extensive documents or codebases thanks to its 128000-token context window and long-context reasoning.
Visual Data Interpretation
The model performs detailed image analysis and multimodal understanding, making it effective for extracting insights from diagrams, photos, or visual reports.
Conversational File Workflows
Users can upload files for processing and engage in ongoing text generation and conversational interaction to refine outputs iteratively.
Strengths & limitations
Strengths
- +Handles large documents and conversations
- +Integrates vision with text inputs
- +Supports diverse file types
- +Strong general-purpose chat abilities
Limitations
- –No native audio or video processing
- –Context window still finite for very long sessions
- –Relies on training data without live updates
Cost calculator
Estimate what GPT-5 Chat would cost for your usage.
Based on GPT-5 Chat's $1.25/1M input · $10.00/1M output. Estimate only — actual cost varies by provider and caching.
Quick start
OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. Only the model slug changes between models.
import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://openrouter.ai/api/v1",
apiKey: process.env.OPENROUTER_API_KEY,
});
const completion = await client.chat.completions.create({
model: "openai/gpt-5-chat",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(completion.choices[0].message.content);Model slug: openai/gpt-5-chat
Editor's verdict
GPT-5 Chat is OpenAI's proprietary multimodal with a 128K-token context window.
At $10.00 per 1M output tokens, it is premium-priced for its class.
It is available through OpenAI's API and aggregators like OpenRouter.
Best suited to handles large documents and conversations and integrates vision with text inputs.
Frequently asked questions
Pricing details are provided on OpenAI's official website and depend on usage volume through their API or platform.
User reviews
Real, verified reviews from the community shape this model's rating.
Loading reviews…
Other GPT models
Sibling versions in the GPT family from OpenAI.
Similar models
Other multimodal worth comparing.