GPT-5 Pro is OpenAI’s most advanced large language model, designed for enterprise-grade applications that demand superior accuracy, depth, and reliability. As part of the unified GPT-5 system, GPT-5 Pro delivers best-in-class performance with state-of-the-art reasoning capabilities, optimized token efficiency, and support for highly complex, mission-critical tasks. It surpasses previous generations in coding, analysis, and professional use-cases, setting new benchmarks in AI intelligence.
vs GPT-5: GPT-5 Pro focuses on deep reasoning, complex instruction accuracy, and enterprise-level tool usage with slower but higher-quality outputs. GPT-5 is faster for everyday tasks but lacks the extensive context window and reasoning depth of Pro.
vs GPT-4o: GPT-5 Pro significantly outperforms GPT-4o in accuracy and reasoning, exemplified by a 94.6% score on the AIME 2025 math test versus GPT-4o’s 71%. Pro also brings a vastly improved context window, multimodal support, and fewer factual errors, albeit with slower response times.
vs OpenAI o3: Compared to o3, GPT-5 Pro has superior problem-solving ability, multimodal integration, and structured output generation. It also boasts higher accuracy and better handling of complex, real-world tasks though at a higher computational cost.
vs Claude Opus 4.1: Claude Opus 4.1 excels in polished outputs and narrative flow with high reliability, whereas GPT-5 Pro leads in multi-modal reasoning, enterprise-grade robustness, and tool-based workflows. GPT-5 Pro’s reasoning and technical task handling surpass Claude’s general writing strengths.
Measured on the AI/ML API gateway across live traffic. Figures are medians unless stated. Last updated 2026-10-12.
import requests r = requests.post( "https://api.aimlapi.com/v1/chat/completions", headers={"Authorization": "Bearer " + AIMLAPI_KEY}, json={ "model": "openai/gpt-5-pro", "messages": [ { "role": "user", "content": "Hello!" } ] }, ) print(r.json())
const r = await fetch("https://api.aimlapi.com/v1/chat/completions", { method: "POST", headers: { Authorization: `Bearer ${process.env.AIMLAPI_KEY}`, "Content-Type": "application/json", }, body: JSON.stringify({ "model": "openai/gpt-5-pro", "messages": [ { "role": "user", "content": "Hello!" } ] }), }); console.log(await r.json());
curl -X POST https://api.aimlapi.com/v1/chat/completions \ -H "Authorization: Bearer $AIMLAPI_KEY" \ -H "Content-Type: application/json" \ -d '{"model":"openai/gpt-5-pro","messages":[{"role":"user","content":"Hello!"}]}'
OpenAI-compatible — swap the base URL and it works with your existing SDK.
| Type | Price |
|---|---|
| Input | |
| Output | |
| Benchmark | Score | What it measures | Source | Retrieved |
|---|---|---|---|---|
| GPQA Diamond | 88.4% | Google-proof graduate science questions (hardest subset) | Source | July 12, 2026 |
| Model | Input | Output | Context | Best for |
|---|---|---|---|---|
GPT-5 Pro This page | Reasoning + agents | |||
| Reasoning + agents | ||||
| Balanced coding + agents | ||||
| Long-context, multimodal & agentic workflows | ||||
| Reasoning + agents |
GPT-5 Pro has a 400,000 tokens context window and can return up to 272,000 tokens.
GPT-5 Pro takes image, text as input and returns text.
Use openai/gpt-5-pro as the model id. Requests go to https://api.aimlapi.com/v1/chat/completions.
GPT-5 Pro became available on November 21, 2025.
GPT-5 Pro is priced at input $20.631 / 1M tokens, output $165.048 / 1M tokens.
Yes, GPT-5 Pro can stream responses as they are generated.
Yes, GPT-5 Pro accepts image input alongside text.
GPT-5 Pro was built by OpenAI.
Yes, GPT-5 Pro includes web search as a feature alongside tool use and reasoning capabilities.
