GPT-5.2 Pro
VerifiedMultimodal model handling images, text, and files over vast contexts.
About GPT-5.2 Pro
Designed as a closed-source system, GPT-5.2 Pro integrates vision and language capabilities into a single architecture. Its large context capacity allows it to maintain coherence across extensive documents and visual sequences. This setup prioritizes seamless handling of mixed input types without requiring external tools.
Strengths center on unified reasoning over images paired with lengthy textual or file-based content. Users benefit from its ability to reference details across thousands of tokens while interpreting visual elements. The model suits professional workflows needing consistent multimodal analysis.
Typical usage includes document review with embedded images, code repositories accompanied by diagrams, and extended research materials. It enables direct file uploads for contextual understanding in one session. Organizations apply it where detailed cross-modal synthesis is required.
Capabilities
How GPT-5.2 Pro compares
GPT-5.2 Pro (striped bar) vs other multimodal on intelligence, speed and price.
Price
USD per 1M output tokens · Lower is better · GPT-5.2 Pro ranks #119 of 122
Sources: Artificial Analysis (intelligence, speed) · OpenRouter (price).
Best for
Long-context document analysis
The 400000 token context enables processing entire books or research papers alongside related images in a single session.
Multimodal content creation
It handles combined text and visual inputs for tasks like generating illustrated reports or editing media-rich documents.
Complex reasoning over extended inputs
Large context supports chaining multiple data sources including charts and transcripts for detailed synthesis.
Strengths & limitations
Strengths
- +Very large context window for detailed inputs
- +Seamless handling of image, text, and file modalities
- +Strong integration across multiple input types
- +Suitable for extended multi-turn multimodal tasks
Limitations
- –High computational demands for maximum context
- –Potential for reduced precision on very long inputs
- –Limited transparency on internal training data
Cost calculator
Estimate what GPT-5.2 Pro would cost for your usage.
Based on GPT-5.2 Pro's $21.00/1M input · $168.00/1M 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-5.2-pro",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(completion.choices[0].message.content);Model slug: openai/gpt-5.2-pro
Editor's verdict
GPT-5.2 Pro is OpenAI's proprietary multimodal with a 400K-token context window.
At $168.00 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 very large context window for detailed inputs and seamless handling of image, text, and file modalities.
Frequently asked questions
The model provides a context length of 400000 tokens.
User reviews
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