GPT-5

GPT-5 is OpenAI's flagship model for coding, reasoning, and agentic tasks across domains.

Input price: $1.125list $1.25-10%
Output price: $9.00list $10.00-10%

Context: 400K
Max output: 128K
Modalities: InputTextImageOutputText

Capability: 150 (#48 of 75)
Human preference: 1406
30-day uptime: —

Released: 2025-08-08
Knowledge cutoff: 2024-09-30

Providers

This model is served by the dedicated providers below. We pick the provider for each request, so provider preferences don’t apply, including a provider named in your request. Prices in USD per 1M tokens. Need a custom setup? Contact [email protected].

DedicatedInput$1.125-10%Output$9.00-10%Cache read$0.1125-10%Context400KMax output128KThis model is served by a dedicated set of providers. We pick the provider for each request, and you pay the same price whichever one serves it.

Included providers2

SuccessTTFT
Azure AI FoundryGlobal——
OpenAIUnited States——

Pricing

Prices for this model. Each request is billed at these prices, whichever provider serves it.

Item	Standard	Batch	Flex	Priority	Price
Inputper 1M tokens	$1.125list $1.25-10%	$0.5625list $0.625-10%	$0.5625list $0.625-10%	$2.25list $2.50-10%	—
Outputper 1M tokens	$9.00list $10.00-10%	$4.50list $5.00-10%	$4.50list $5.00-10%	$18.00list $20.00-10%	—
Cache readper 1M tokens	$0.1125list $0.125-10%	$0.056252list $0.0625-10%	$0.056252list $0.0625-10%	$0.225list $0.25-10%	—
Web searchper request	—	—	—	—	$0.009list $0.01-10%

Try it

Runs on your balance and is billed like any API request.

curl https://api.ohmygpt.com/v1/chat/completions \
  -H "Authorization: Bearer $OHMYGPT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5",
    "messages": [
      {
        "role": "user",
        "content": "Hello"
      }
    ]
  }'

import os

from openai import OpenAI

client = OpenAI(
    api_key=os.environ["OHMYGPT_API_KEY"],
    base_url="https://api.ohmygpt.com/v1",
)

response = client.chat.completions.create(
    model="openai/gpt-5",
    messages=[{"role": "user", "content": "Hello"}],
)
print(response.choices[0].message.content)

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.OHMYGPT_API_KEY,
  baseURL: "https://api.ohmygpt.com/v1",
});

const response = await client.chat.completions.create({
  model: "openai/gpt-5",
  messages: [{ role: "user", content: "Hello" }],
});
console.log(response.choices[0].message.content);

The answer streams in here.

Billed by usage

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Better value: more capable, lower price
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Capability scores are from Epoch AI’s Epoch Capabilities Index (CC BY 4.0, as of 2026-11-02), which combines dozens of benchmarks with GPT-5 set at 150. epoch.ai/eci

Price: our current input price per 1M tokens in USD, lowest across channels. Dated snapshots and resold copies of the same model are merged into one point; free models are not shown.

Shaded area: capability above and price below the median of all models. Pareto frontier: no other model is both cheaper and more capable.

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Human preference ratings are from the LMArena Text Arena (CC BY 4.0, as of 2026-10-28): Elo ratings from blind votes, on a different scale from capability scores. lmarena.ai/leaderboard/text