Available models
The models included with Essevin, and how to confirm which ones the current key can call.
Essevin offers a focused set of text, image, and video models. Availability is controlled by the key's purpose and your plan, so the authenticated model response is the source of truth.
Included models
| Family | Representative models | Typical use | Where to use it |
|---|---|---|---|
| Claude | claude-opus-5-5, claude-sonnet-5-5, claude-haiku-5-5 | Claude Code and Anthropic Messages | Anthropic protocol |
| GPT / Codex | gpt-6.1-sol, gpt-6-sol, gpt-6-luna | Chat Completions, Responses, and coding clients | OpenAI protocol |
| GPT Image | gpt-image-2, gpt-image-2.5-flare | Image generation and supported editing | OpenAI Images, Creative Studio |
| Video | Seedance, MiniMax Hailuo MiniMax-H3-Max, Wan wan3.0-video | Video from a prompt or source material | Creative Studio |
Video models are available only on plans that include video. The IDs above are examples, not a promise that every key exposes every route.
Query the current key
curl https://api.essevin.com/v1/models \
-H "Authorization: Bearer $ESSEVIN_API_KEY"Use a key for the right purpose
Query Claude with a Claude key, GPT or Codex with a GPT key, and GPT Image with an Images key.
Copy the complete ID
Preserve prefixes, suffixes, dots, and hyphens exactly as returned. Do not reconstruct a model name from a display label.
Match the protocol
Claude uses the Anthropic Base URL without /v1. GPT, Codex, and GPT Image use https://api.essevin.com/v1 with their matching OpenAI-compatible endpoint.
On model_not_found, query /v1/models again with the same key. Switching to a similarly named model without checking the response can send the request to a model this key's purpose does not cover.
The signed-in model catalog shows the models currently available to the account.