Build next-gen apps with gpt-5.5
Pricing
Official Price
TokenLab Price
One-click test
Sign in once and Web Agent keeps this model, prompt, and request preset for you.
Test gpt-5.5 in Web Agent with a short request at /v1/responses, then show request body, latency, and response.
API workbench
The default route for production. The code sample below uses this endpoint with the format you pick.
curl https://api.tokenlab.sh/v1/responses \
-H "Content-Type: application/json" \
-H "Authorization: Bearer sk-xxx" \
-d '{
"model": "gpt-5.5",
"input": "Hello!"
}'Use cases
Best forCode
Writing, reviewing, and debugging code in real engineering loops
Reasoning
Multi-step reasoning, analysis, and research workflows
Vision
Reading images, parsing documents, and answering visual questions
Agents and tools
Drive reasoning, support triage, tool calls, and multi-step task flows.
Developer workflows
Generate, review, or debug code without rewiring your stack.
Knowledge assistants
Ship chat, search, and retrieval with predictable cost and behavior.
Side-by-side test
Compare real response quality, latency, and price for production defaults.
Prompt examples
Write a concise support reply and list the assumptions behind it.
Review this API design and call out the top three integration risks.
Turn a long changelog into release notes a non-engineer would read.
此模型采用条件计费。仅凭每月 token 总量无法可靠估算费用；请结合请求规格、缓存及适用时段查看详细价格。
FAQ
How much does gpt-5.5 cost?
On TokenLab, gpt-5.5 costs Input $1.50 / Output $9.00 Per 1M Tokens. The pricing table above shows the full breakdown. Rates depend on the billing unit, specification, and usage. Compare matching conditions in the model's detailed pricing; a single rate does not determine the total cost.
What is gpt-5.5 best for?
gpt-5.5 is a strong fit for Code, JSON Mode, Prompt Cache. You can call it through TokenLab with one API key.
How do I call the gpt-5.5 API?
Get a TokenLab API key, then send your request to https://api.tokenlab.sh/v1/responses. The API workbench above has a recommended endpoint and copy-ready code.
Which endpoint should gpt-5.5 use?
Use https://api.tokenlab.sh/v1/responses as the default for gpt-5.5. If a provider-native format is supported, the API workbench shows that endpoint too.
Can I test gpt-5.5 before integrating it?
Yes. Try in Web Agent opens a ready test for gpt-5.5 and keeps your prompt after sign-in, so you don’t lose context.
