OpenAI GPT-5

GPT-5 API at 45% off

OpenAI's flagship chat model for stronger reasoning, coding, and agent workflows. Use GPT-5 through Crazyrouter when you need a premium reasoning model but still want unified billing, cleaner model switching, and an OpenAI-style API surface.

From $0.69 / 1M input
400K context
Text, image
Indexed and maintained

Why this page exists

People searching for GPT-5 pricing are usually comparing direct cost against alternatives while also asking whether the added reasoning quality is worth the spend.

  • Last reviewed: 2026-03-12
  • Review cadence: monthly
  • Owner: growth
  • Indexing status: index

GPT-5 pricing comparison

Compare the current Crazyrouter token price with the direct provider list price used for this landing page.

OpenAI Direct

Input per 1M tokens$1.25
Output per 1M tokens$10.00
BillingPay as you go
Save 45%

Crazyrouter

Input per 1M tokens$0.69
Output per 1M tokens$5.50
BillingOne key for 600+ models

GPT-5 at a glance

Use these details to decide whether this model fits the job before you wire it into production.

Context window
400K
Max output
128K
Modality
Text, image
Latency profile
Medium

Best-fit use cases

These are the production situations where this model is most likely to earn its keep.

Agentic coding and refactoring

This is a strong fit when the workflow consistently looks like this.

Long-context research and planning

This is a strong fit when the workflow consistently looks like this.

Hard reasoning tasks where quality matters more than speed

This is a strong fit when the workflow consistently looks like this.

When not to choose GPT-5

High-quality landing pages should help visitors disqualify the wrong model, not just push every option.

The lowest-latency chat experiences

This is usually a sign that another model deserves a closer look first.

Budget-sensitive high-volume classification or extraction

This is usually a sign that another model deserves a closer look first.

Why teams use Crazyrouter here

The gateway matters when you want commercial flexibility, not just lower price.

Cheaper than direct pricing for flagship reasoning traffic

This matters when the business wants optionality and easier operations.

Same OpenAI integration shape across multiple premium models

This matters when the business wants optionality and easier operations.

Easier experimentation between GPT-5, Claude, Gemini, and o-series models

This matters when the business wants optionality and easier operations.

How to think about GPT-5

These notes help turn a pricing page into a real decision page.

Choose GPT-5 when reasoning depth and coding quality drive the business outcome.

Comparison note

Choose GPT-5 Mini when you want the GPT-5 family feel at a much lower unit cost.

Comparison note

Choose o3 when you specifically want reasoning-first behavior rather than a flagship chat default.

Comparison note

Start in 30 seconds

Use the OpenAI SDK style and swap only the base URL plus the model name.

from openai import OpenAI

client = OpenAI(
    base_url="https://crazyrouter.com/v1",
    api_key="your-crazyrouter-key"
)

response = client.chat.completions.create(
    model="gpt-5-chat",
    messages=[{"role": "user", "content": "Review this architecture proposal, identify risks, and suggest a phased migration plan."}]
)

print(response.choices[0].message.content)
curl https://crazyrouter.com/v1/chat/completions   -H "Authorization: Bearer your-crazyrouter-key"   -H "Content-Type: application/json"   -d '{
    "model": "gpt-5-chat",
    "messages": [{"role": "user", "content": "Review this architecture proposal, identify risks, and suggest a phased migration plan."}]
  }'
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://crazyrouter.com/v1",
  apiKey: "your-crazyrouter-key",
});

const response = await client.chat.completions.create({
  model: "gpt-5-chat",
  messages: [{ role: "user", content: "Review this architecture proposal, identify risks, and suggest a phased migration plan." }],
});

console.log(response.choices[0].message.content);

Frequently asked questions

How much does GPT-5 cost on Crazyrouter?

GPT-5 costs $0.69 per 1M input tokens and $5.50 per 1M output tokens on Crazyrouter from the current pricing feed. That is 45% below the direct list price referenced on this page.

Who should actually pay for GPT-5?

Teams should pay for GPT-5 when model quality changes the business result, such as complex coding, difficult planning, or high-value research workflows. For lighter production traffic, GPT-5 Mini or GPT-4o may be more efficient.

Is GPT-5 available through an OpenAI-compatible API?

Yes. GPT-5 can be called on Crazyrouter with the same general SDK pattern many teams already use for OpenAI integrations.

Why not use GPT-5 for everything?

Because a premium reasoning model is not always the best cost-performance choice. Many teams route only the hardest requests to GPT-5 and keep routine requests on cheaper models.

What does the 400K context window matter for?

A very large context window is useful for long documents, large codebases, agent memory, and workflows where the model needs to reason over more background at once.

Why keep this page indexed rather than treat it as a throwaway landing page?

GPT-5 is a core commercial-intent term. This page is intended to be a maintained decision page with pricing, usage guidance, and comparison context rather than a thin paid-traffic page.

Explore related models

Compare adjacent options for quality, latency, and price without rebuilding your API stack.

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