gpt-5.5-proOpenAI
- endpoints
- 1
- regions
- 1
- api
- chat
- released
- April 2026
capabilities 5/8
| # | flags | |||||
|---|---|---|---|---|---|---|
| 1 |  OpenAI Inc. | Global | 1.1M | $30.00 | $180.00 | no-train |
no measured traffic for this model yet. the endpoints table above carries provider pricing
no published benchmark scores for this model
gpt-5.5-prorequesty routes this id across every provider serving gpt-5.5-pro, picking on price and health and failing over automatically. the id stays valid when a provider changes underneath it
Base url is https://router.requesty.ai/v1 for every id here. One key reaches the whole catalog.
from openai import OpenAI client = OpenAI( api_key="YOUR_REQUESTY_API_KEY", base_url="https://router.requesty.ai/v1",) response = client.chat.completions.create( model="gpt-5.5-pro", messages=[ {"role": "user", "content": "Explain quantum computing in one paragraph."}, ],) print(response.choices[0].message.content)
Change the base url, use your Requesty key, set the model to any id in the call pane. Existing OpenAI SDK code needs no other edit, and the same key reaches every other model in the catalog, so switching later is a one-parameter change. Browse all models
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 text and image inputs, and is designed for long-horizon problem solving, agentic coding, and precise execution across multi-step workflows.
questions 6
Which providers serve gpt-5.5-pro?
How much does gpt-5.5-pro cost?
Is gpt-5.5-pro open weights?
What is the context window of gpt-5.5-pro?
How do I use gpt-5.5-pro with the OpenAI SDK?
Should I call gpt-5.5-pro by its managed id or a provider id?
more from openai 6
| model | context | from /M | providers |
|---|---|---|---|
| gpt-6-astra | 1.1M | $5.00 | 2 |
| gpt-5.6-luna | 1.1M | $0.10 | 3 |
| gpt-5.6-terra | 1.1M | $1.00 | 3 |
| gpt-5.6-sol | 1.1M | $2.50 | 3 |
| gpt-5.5 | 1.1M | $2.50 | 3 |
| gpt-5.4-nano | 400K | $0.10 | 1 |
route gpt-5.5-pro through one endpoint
One key for 1 provider on this model and 600+ others. No markup on provider prices, automatic failover, caching built in. Weekly aggregates in the measured pane come from production traffic routed through Requesty, one line per provider on a shared axis. Methodology