OpenAI · 272K context
GPT-5.4 Image 2 API
Use GPT-5.4 Image 2 in the Synaps chat or through one OpenAI-compatible API key. Pay per message from a balance you top up with ETH or USDC. No subscription, no card.
Prices include the 20% Synaps fee and update automatically. “List” is what the provider charges.
Call GPT-5.4 Image 2 from code
Synaps speaks the OpenAI Chat Completions format. Point any OpenAI SDK at Synaps and set model to openai/gpt-5.4-image-2.
curl https://www.synaps.chat/api/v1/chat/completions \
-H "Authorization: Bearer $SYNAPS_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "openai/gpt-5.4-image-2",
"messages": [{ "role": "user", "content": "Hello!" }]
}'from openai import OpenAI
client = OpenAI(base_url="https://www.synaps.chat/api/v1", api_key="syn_...")
reply = client.chat.completions.create(
model="openai/gpt-5.4-image-2",
messages=[{"role": "user", "content": "Hello!"}],
)
print(reply.choices[0].message.content)Privacy
This model's maker runs it and can read requests under its own policy. Synaps doesn't store your prompts.
Questions
How much does GPT-5.4 Image 2 cost on Synaps?
$9.60 per million input tokens and $18.00 per million output tokens, including the 20% Synaps fee. A typical chat message costs about $0.023. You only pay for what you use.
Can I pay for GPT-5.4 Image 2 with crypto?
Yes. Top up your Synaps balance with ETH on Robinhood Chain or Base, or USDC on Base, from $1. Each message is deducted from that balance. There is no subscription or card.
Is there a GPT-5.4 Image 2 API?
Yes. Create an API key on Synaps and call openai/gpt-5.4-image-2 through the OpenAI-compatible endpoint https://www.synaps.chat/api/v1/chat/completions. Any OpenAI SDK works by changing the base URL.
What can GPT-5.4 Image 2 do?
It accepts image, text, file and produces image and text, with a context window of 272K tokens. You can attach photos in the chat. Turn on Image mode in the chat to generate pictures.