---
title: Models API
description: Retrieve the exact model IDs available to the current API key.
lastUpdated: 2026-09-08
---

Use `GET /v1/models` to retrieve the models available to your current API key.

```bash
curl https://infistar.ai/v1/models \
  -H "Authorization: Bearer $INFISTAR_API_KEY"
```

## Response formats

- By default, the response uses the OpenAI-compatible model-list format.
- A request containing `anthropic-version` selects the Anthropic-compatible format.
- A request containing `x-goog-api-key` selects the Gemini-compatible format.

In the default OpenAI format, use the exact `data[].id` value in subsequent requests. Do not replace it with a translated display name, a plan name, or a supplier name.

Availability depends on the current key and its group. Check the model's compatible endpoints in [Model Square](https://infistar.ai/pricing); appearing in the list does not imply support for all API formats.

Continue with [Chat Completions](/en/api-reference/chat-completions), [Responses](/en/api-reference/responses-api), or [Messages](/en/api-reference/claude-format-api).