Docs
How to call Responses, switch models, stream, and use hosted tools.
Public catalog · Official Responses
Sylphx AI
The public catalog and official Responses service for models sold by Sylphx. Pick a concrete SKUs such as openai/gpt-5.5, authenticate with an organization sk-sx-… key, and send the same official OpenAI Responses document to https://api.sylphx.ai/v1.
Catalog
Admitted Sylphx products and our sell prices.
| Model | Input price | Output price |
|---|---|---|
| z-ai/glm-5.3-flash | $0.0750 | $0.2500 |
| z-ai/glm-5.3 | $1.40 | $4.40 |
| google/gemini-3.7-flash | $0.7500 | $3.75 |
| Qwen: Qwen3.7 Flash qwen/qwen3.7-flash | $0.0296 | $0.1185 |
This site
https://sylphx.ai/ is the professional product site: docs, contract, first success, and pricing/trust. The API peel is a different host. This page is not a third conversation protocol.
Contract
The customer contract is the official Responses document at https://api.sylphx.ai/v1 with sk-sx-…. Not Binding. Not Chat Completions.
First success
Mint a key, POST https://api.sylphx.ai/v1/responses, and read back the public model you sent.
Pricing and trust
Catalog, not a dump
Scan named models and our prices. Residual providers, COGS, and connector manifests stay off the customer wire.
One price source
SELL prices on this site match the catalog the API exposes. Usage is metered on Responses. See pricing.
Keys you can revoke
Organizations hold many sk-sx- keys. Sign in on this site to mint and revoke them. The peel does not host this site.