Pay for usage
Metered billing on Responses requests at https://api.sylphx.ai/v1. Keys are scoped to your organization so teams and environments stay separate.
Pricing and trust
You pay for tokens you use. This page is the customer list SELL sheet — Sylphx prices, not residual COGS and not leftover remaining. The same numbers are on the models catalog and each model detail page.
One price source
Catalog prices on this site match what the API exposes. No separate portal-only rate sheet. Residual COGS stays off the customer wire.
Concrete SKUs
Customers select a concrete admitted SKU. The former auto router is cancelled and returns a typed 404 rather than silently selecting for you.
List SELL
USD per million tokens unless a row says otherwise. Public catalog policy is list SELL only. Leftover remaining is not this sheet.
| Model | Input | Output | Unit |
|---|---|---|---|
| z-ai/glm-5.3-flash | $0.0750 | $0.2500 | USD / million tokens |
| z-ai/glm-5.3 | $1.40 | $4.40 | USD / million tokens |
| google/gemini-3.7-flash | $0.7500 | $3.75 | USD / million tokens |
| Qwen: Qwen3.7 Flash qwen/qwen3.7-flash | $0.0296 | $0.1185 | USD / million tokens |
| OpenAI: GPT-5.6 Luna Pro openai/gpt-5.6-luna-pro | $0.1000 | $0.6000 | USD / million tokens |
| OpenAI: GPT-5.6 Luna openai/gpt-5.6-luna | $0.2000 | $1.20 | USD / million tokens |
| OpenAI: GPT-5.6 Sol openai/gpt-5.6-sol | $4.00 | $20.00 | USD / million tokens |
| OpenAI: GPT-5.6 Terra openai/gpt-5.6-terra | $2.00 | $12.00 | USD / million tokens |
| MiniMax: MiniMax M3 minimax/minimax-m3 | $0.3000 | $1.20 | USD / million tokens |
| Qwen: Qwen3.6 35B A3B qwen/qwen3.6-35b-a3b | $0.2480 | $1.49 | USD / million tokens |
| DeepSeek: DeepSeek V4 Flash 0731 deepseek/deepseek-v4-flash | $0.1400 | $0.2800 | USD / million tokens |
| OpenAI: GPT-5.5 openai/gpt-5.5 | $5.00 | $30.00 | USD / million tokens |
| z-ai/glm-5-turbo | $1.20 | $4.00 | USD / million tokens |
Trust
- Authenticate with
sk-sx-…. Revoke a key from the console on this site. - This site is
https://sylphx.ai/. The peel ishttps://api.sylphx.ai/v1. Do not treat peel JSON as this site, and do not treat this site as a third API root. - Project invoices and entitlements are Commerce. AI SELL meters model calls.
- Privacy and Terms apply to the API and this site.