gpt-5.5-proOpenAI Inc.
- api
- chat
- hosting
- US
- model lab
- OpenAI
- weights
- closed
- added
- April 2026
- model id
- openai/gpt-5.5-pro
capabilities 5/8
- input
- $30.00
- output
- $180.00
- cache write
- -
- cache read
- -
worked cost
| volume | cost |
|---|---|
| 100K in + 10K out | $4.80 |
| 1M in + 100K out | $48.00 |
| 10M in + 1M out | $480.00 |
Requesty charges what the upstream provider charges, with no markup and no per-request fee. Prompt caching and smart routing cut the effective cost further on repeated context. Gateway pricing
no measured traffic for this endpoint yet. pricing above is the provider's own
no published scores for this exact variant. region deployments and highspeed tiers usually share the base model's results
- retention
- 30 days
- trains on prompts
- no
- hosted in
- US
Terms are the provider's, not Requesty's: routing a request here puts it under them. OpenAI Privacy Policy
Need every request to stay in one jurisdiction? EU hosting routes only through EU-hosted providers.
openai/gpt-5.5-prothis id pins the openai inc. deployment, with no routing and no failover. the managed id on the canonical page routes across all 1 providers instead
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="openai/gpt-5.5-pro", messages=[ {"role": "user", "content": "Explain quantum computing in one paragraph."}, ],) print(response.choices[0].message.content)
Change the base url to https://router.requesty.ai/v1, use your Requesty key, set the model to the id above. Existing OpenAI SDK code needs no other edit, and the same key reaches every other model in the catalog. 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 5
How much does gpt-5.5-pro cost?
What is the context window of gpt-5.5-pro?
What can gpt-5.5-pro do?
How do I use gpt-5.5-pro with the OpenAI SDK?
Can I run gpt-5.5-pro through Requesty?
more from openai inc. 8
| endpoint | ctx | in /M |
|---|---|---|
| gpt-6-astra:flex | 1.1M | $5.00 |
| gpt-6-astra | 1.1M | $10.00 |
| gpt-5.6-luna | 1.1M | $0.20 |
| gpt-5.6-luna:flex | 1.1M | $0.10 |
| gpt-5.6-terra | 1.1M | $2.00 |
| gpt-5.6-terra:flex | 1.1M | $1.00 |
| gpt-5.6-sol | 1.1M | $4.00 |
| gpt-5.6-sol:flex | 1.1M | $2.50 |
call gpt-5.5-pro through one endpoint
One key for this endpoint and 600+ other models. No markup on provider prices, automatic failover when a provider degrades, and prompt caching built in. Methodology