GPT-5.5 Pro
openai/gpt-5.5-pro
byOpenAI1.05M contextReleased Apr 24, 2026ToolsVisionReasoning
GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads. It features a 1M+ token context window (922K input, 128K output) with support for...
- Input
- $32.6
- per 1M tokens
- Output
- $196
- per 1M tokens
Lowest price across providers. You are billed from your Ditfa Platform credits per token used.
Providers
Requests are routed to the cheapest healthy provider and fall back automatically.
Usage
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Top apps
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Quickstart
Use any OpenAI SDK. Point it at the Ditfa Platform base URL and use an sk-dp- key.
curl https://gateway.ditfa.com/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $DITFA_API_KEY" \
-d '{
"model": "openai/gpt-5.5-pro",
"messages": [
{
"role": "user",
"content": "Write a haiku about the ocean."
}
]
}'