GPT-5.5 AI Chat Playground and API

What You Can Do with GPT-5.5

Choose GPT-5.5 as a stable general-purpose baseline for applications that mix coding, writing, analysis, and structured output.

General-Purpose Coding

Draft functions, explain errors, write tests, and assist with routine implementation work.

Structured Reasoning

Break down questions, compare alternatives, and return organized conclusions.

Reliable Writing

Create and revise documentation, business content, and concise summaries.

Application Baseline

Use one dependable model as a baseline before routing harder or cheaper tasks elsewhere.

GPT-5.5 Use Cases

Best suited to teams that want a consistent default model before introducing task-specific routing.

Default Application Model

Start with a consistent general model before adding routing.

Developer Assistance

Support routine coding, tests, and explanations.

Business Documents

Draft and revise clear operational content.

Evaluation Baseline

Compare newer or specialized models against a stable reference.

How to Use GPT-5.5

Test the model in three straightforward steps.

Choose Your Settings

Set the response controls and upload options supported by the model.

Send a Prompt

Describe the task, add relevant context, and review the streamed response and token usage.

Connect the API

Use the documented endpoint and your API key to bring the same model into your product.

Build with the GPT-5.5 API

Go from an interactive test to a production integration with predictable controls and usage reporting.

Familiar Protocols

Use the API protocol configured for this model, including streaming where available.

Usage Visibility

Track input tokens, output tokens, and consumed credits after each response.

Model-Specific Controls

Pass the supported generation parameters instead of relying on generic defaults.

One Account and Balance

Test and operate supported text models through the same AIReiter account and billing system.

GPT-5.5 FAQ

Common questions about the online playground, pricing, and API access.

What is GPT-5.5 best for?

Use it as a dependable general-purpose model for coding, analysis, structured writing, and application baselines.

Why keep GPT-5.5 in a multi-model stack?

A stable baseline makes it easier to measure whether a newer, cheaper, or specialized model improves your workload.

Does GPT-5.5 support streaming here?

Yes. The playground streams responses and displays usage after completion.

How is GPT-5.5 priced?

Current input and output token rates are displayed above the playground.

Can I call GPT-5.5 through an API?

Yes. Follow the linked API documentation and use model ID gpt-5.5.