---
title: OpenAI: GPT 5 Pro API | LLM | ModelsLab
description: Advanced **LLM** with 400K-token context, 272K input/128K output, multimodal (text/image) support, and high-effort reasoning for enterprise coding, math.
url: https://modelslab.com/models/openai/openai-gpt-5-pro.md
canonical: https://modelslab.com/models/openai/openai-gpt-5-pro.md
type: product
component: Playground/LLM/Index
generated_at: 2026-04-07T08:57:10.188625Z
---

OpenAI: GPT-5 Pro

 [LLMs.txt](https://modelslab.com/models/open_router/openai-gpt-5-pro/llms.txt) [.md](https://modelslab.com/models/openai/openai-gpt-5-pro.md)

OpenAI: GPT-5 Pro
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Choose a prompt below to get started or type your own message

 Explain quantum computing in simple terms

 Write a Python function to sort a list

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 Compare REST vs GraphQL APIs

Send

### OpenAI: GPT-5 Pro

openai openai-gpt-5-pro

Copy model ID

PricingInput $15.00 / 1M tokens

Output $120.00 / 1M tokens

API EndpointsOpenAI Compatible

`https://modelslab.com/api/v7/llm/chat/completions`Endpoint

Anthropic Compatible

`https://modelslab.com/api/v7/llm/v1/messages`Messages

`https://modelslab.com/api/v7/llm/v1/messages/count_tokens`Count Tokens

`https://modelslab.com/api/v7/llm/v1/models`Models

Use with Claude Code

cURL Example

ParametersSystem MessageYou are a helpful AI assistant specialized in providing accurate and detailed responses.

Temperature0.7

Max Tokens1000

Top P0.9

Frequency Penalty0

Presence Penalty0

Model Info

Support

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*This markdown version is optimized for AI agents and LLMs.*

**Links:**
- [Website](https://modelslab.com)
- [API Documentation](https://docs.modelslab.com)
- [Blog](https://modelslab.com/blog)

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*Generated by ModelsLab - 2026-04-07*