GPT-5 Pro
VerifiedMultimodal model handling large-scale image, text, and file tasks.
About GPT-5 Pro
GPT-5 Pro was designed as a closed-weight multimodal system. It integrates support for images, text, and files within a single large context window of 400000 tokens. This architecture enables unified handling of diverse input types without requiring separate specialized models.
Its primary strengths lie in maintaining coherence across extended multimodal sequences. The model processes combined inputs efficiently while remaining proprietary and unavailable for local deployment. No parameter count is specified for this version.
Typical usage involves building applications that require simultaneous analysis of documents, visuals, and lengthy text. Developers integrate it via API for tasks needing broad context retention across mixed media. It suits enterprise workflows where closed-source reliability is preferred.
Capabilities
How GPT-5 Pro compares
GPT-5 Pro (striped bar) vs other multimodal on intelligence, speed and price.
Price
USD per 1M output tokens · Lower is better · GPT-5 Pro ranks #92 of 97
Sources: Artificial Analysis (intelligence, speed) · OpenRouter (price).
Best for
Long-form multimodal document analysis
GPT-5 Pro excels at ingesting and reasoning over hundreds of pages of mixed text, charts, and images in a single pass thanks to its 400k token context.
Extended video and audio understanding
The model can process hours of video or audio alongside transcripts and visual frames to answer detailed questions about events, dialogue, and on-screen content.
Complex multi-turn research workflows
Researchers benefit from maintaining coherent multimodal context across dozens of iterations involving code, diagrams, and evolving hypotheses without losing earlier details.
Strengths & limitations
Strengths
- +Handles very large inputs across modalities
- +Strong integration of text, image, and file data
- +Suitable for document-heavy workflows
- +Flexible reasoning over extended context
Limitations
- –No native real-time information access
- –Performance can vary on highly specialized topics
- –Higher computational cost with maximum context
Cost calculator
Estimate what GPT-5 Pro would cost for your usage.
Based on GPT-5 Pro's $15.00/1M input · $120.00/1M 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-pro",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(completion.choices[0].message.content);Model slug: openai/gpt-5-pro
Editor's verdict
GPT-5 Pro is OpenAI's proprietary multimodal with a 400K-token context window.
At $120.00 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 very large inputs across modalities and strong integration of text, image, and file data.
Frequently asked questions
The model supports a context window of 400000 tokens, allowing it to handle very large inputs in one session.
User reviews
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