Synapse Garden
OpenAI · Single modalityReleased 2025-12-16

gpt-image-1.5

openai/gpt-image-1.5 id

GPT Image 1.5 is OpenAI's latest image generation model, with better instruction following and adherence to prompts.

Type
Use gpt-image-1.5
# Drop-in OpenAI-compatible client
$ import { generateText } from 'ai'
$ 
$ const { text } = await generateText({
$   model: 'openai/gpt-image-1.5',
$   baseURL: 'https://synapse.garden/api/v1',
$   apiKey: process.env.MG_KEY,
$   prompt: 'Why is the sky blue?',
$ })
—
CONTEXT WINDOW
—
MAX OUTPUT
$5.50/M
INPUT · PER M
$35.20/M
OUTPUT · PER M
PRICING

List prices, every modality.

RatePer million tokens · USD
Input$5.50/M
Output$35.20/M
Cache read$1.38/M
Honest list pricesHow we calculate prices
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FAQ · GPT-IMAGE-1.5

Frequently asked

01 / 04

How do I call gpt-image-1.5 from my code?

Use the OpenAI or Anthropic SDK and point baseURL at https://synapse.garden/api/v1. Set model: ‘openai/gpt-image-1.5’ and supply your Synapse Garden API key. No code changes beyond the base URL.

02 / 04

How much does gpt-image-1.5 cost?

Input: $5.50/M per million tokens. Output: $35.20/M per million tokens. The free tier includes a million tokens every month at no cost.

03 / 04

What's the context window for gpt-image-1.5?

Context window varies — check the live spec sheet at the top of this page.

04 / 04

Do I need a separate Anthropic or OpenAI account?

No. Synapse Garden is the single API surface — one key gives you OpenAI, Anthropic, Google, Meta, Mistral, DeepSeek, xAI, Cohere, and more. Billing, rate limits, and audit logs are unified.

READY

Try gpt-image-1.5 in three minutes.

Sign up, create a key, drop our base URL into your existing client. The free tier includes a million tokens every month — no credit card.

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