Models
GPT Image 1.5
Model id: gpt-image-1.5
- Image generation
OpenAI’s previous-generation dedicated image model, still available for compatible workloads.
Best for
Ideal when you need the prior GPT Image tier at a lower list price.
- Provider
- OpenAI
- Context window
- Not published
- Release date
- 2025-12-01
Pricing
1024x1024 · auto
$0.0525 / image
1024x1024 · high
$0.2052 / image
1024x1024 · low
$0.0139 / image
1024x1024 · medium
$0.0525 / image
1024x1536 · auto
$0.0772 / image
1024x1536 · high
$0.3086 / image
1024x1536 · low
$0.0201 / image
1024x1536 · medium
$0.0772 / image
1536x1024 · auto
$0.0772 / image
1536x1024 · high
$0.3086 / image
1536x1024 · low
$0.0201 / image
1536x1024 · medium
$0.0772 / image
Amounts in Canadian dollars, converted at the Bank of Canada indicative rate (2026-07-31).
Performance
Reading
Last 7 days
Not enough data to display the chart.
- Time to first byte (p95)
- Not published
- Output speed (p95)
- Not published
- Samples
- 23 over 7 days
Measured on real traffic at Pass egress — not a synthetic benchmark.
Activity
Tokens
—
—
—
—
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Top 5 tools · last 7 days
Tool activity appears only when at least 2 organizations have used this model recently.
Availability
Availability (%)
Last 7 days
- Operational probes
- 99.91% over 7 days
- Samples
- 8,614
Quick start
Generate an image with a tonia_ key and the exact model id below.
curl
curl https://pass.tonia.ca:8443/v1/images/generations \
-H "Authorization: Bearer $TONIA_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-image-1.5",
"prompt": "Draw a red fox",
"n": 1
}'Python (OpenAI SDK)
import os
from openai import OpenAI
client = OpenAI(
base_url="https://pass.tonia.ca:8443/v1",
api_key=os.environ["TONIA_API_KEY"],
)
response = client.images.generate(
model="gpt-image-1.5",
prompt="Draw a red fox",
n=1,
)TypeScript (OpenAI SDK)
import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://pass.tonia.ca:8443/v1",
apiKey: process.env.TONIA_API_KEY,
});
const response = await client.images.generate({
model: "gpt-image-1.5",
prompt: "Draw a red fox",
n: 1,
});