GPT-5.5 Pro

gpt-5.5-pro by OpenAI Released April 25, 2026
ReasoningFunction callingStructured outputPrompt cachingWeb searchComputer useImage inputFile inputAudio inputVideo inputEU hostingFree endpointUp to % off
Input from
$30 / 1M
Output from
$179.9994 / 1M
Cached input from
$3 / 1M
Context window
1.05M
Endpoints
3
from 2 providers
Regions
Global, Europe

About GPT-5.5 Pro

GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads.

GPT-5.5 Pro is a chat model by OpenAI, available on Eden AI through 3 endpoints from 2 providers, from $30 per million input tokens and $180 per million output tokens, with a context window of up to 1.05M tokens.

Providers and prices

3 endpoints from 2 providers, cheapest first, in USD per million tokens. Every one is called with the same Eden AI key: pin one with its endpoint ID, or let Eden AI route for you. Above 272K tokens: $60 input / $270 output per 1M.

Endpoint
Region
Context
Input / 1M
Output / 1M
Cached / 1M
Supports
Databricks (Europe)Official−%databricks/databricks-gpt-5-5-pro@eu
Europe
922K
$30$30
$179.9994
$3
ReasoningToolsJSONCacheVisionWeb
DatabricksOfficial−%databricks/databricks-gpt-5-5-pro
Global
922K
$30$30
$179.9994
$3
ReasoningToolsJSONCacheVisionWeb
OpenAIOfficial−%openai/gpt-5.5-pro
Global
1.05M
$30$30
$180
$
ReasoningToolsJSONCacheVisionWeb

Performance

Performance figures appear here once GPT-5.5 Pro has enough traffic on Eden AI to report them without exposing any single customer.

Estimate your monthly cost

Enter your expected volume to compare every endpoint at once.

Call GPT-5.5 Pro with Eden AI

Use the model ID to let Eden AI pick an endpoint, or an endpoint ID from the table above to pin one.

import requests

response = requests.post(
    "https://api.edenai.run/v3/chat/completions",
    headers={"Authorization": "Bearer YOUR_EDENAI_API_KEY"},
    json={
        "model": "",
        "messages": [{"role": "user", "content": "Hello!"}],
    },
)
print(response.json())

Questions about GPT-5.5 Pro

On Eden AI, prices for this model start at $30 per million input tokens and $179.9994 per million output tokens. Prices differ by endpoint; the providers table lists each one. Above 272K tokens: $60 input / $270 output per 1M.

Up to 1.05M tokens, depending on the endpoint.

3 endpoints from 2 providers, available in: Global, Europe. All of them are called with the same Eden AI API key.

Yes. At least one endpoint is hosted in Europe; pin it with its endpoint ID from the providers table to keep requests in the EU.

Over the last 30 days, the fastest first token was s () and the highest throughput was tokens per second ().