GPT-5.6 API: runnable cURL and Node.js examples

Call GPT-5.6 Luna, Terra, or Sol through PoYo's Responses-compatible API with exact model IDs and a minimal Node.js example.

Answer: To use the GPT-5.6 API, send a server-side request to POST https://api.poyo.ai/v1/responses with model gpt-5-6-luna, gpt-5-6-terra, gpt-5-6-sol and a PoYo API key. The examples in this repository are runnable with Node.js 22+ or cURL.

Last verified against the live PoYo schema and pricing on August 9, 2026.

Quickstart

1. Create a key in the PoYo dashboard.
2. Copy .env.example to .env and replace the placeholder.
3. Run node node/index.mjs.

POYO_API_KEY=YOUR_POYO_API_KEY_HERE
POYO_BASE_URL=https://api.poyo.ai

The complete cURL request is in curl/generate.md. The Node.js example prints the complete JSON response.

Model IDs

• gpt-5-6-luna
• gpt-5-6-terra
• gpt-5-6-sol

Use the exact IDs above. Product names and API model IDs are not always identical.

Request fields

Field	Requirement	Meaning
model	required	gpt-5-6-luna, gpt-5-6-terra, or gpt-5-6-sol.
input	required	String or Responses-style input items.
instructions	optional	High-level system instructions.
max_output_tokens	optional	Maximum output tokens.
reasoning	optional	Reasoning configuration for supported variants.
stream	optional	Enable streaming.

Pricing snapshot

Usage	Price
GPT-5.6 Luna input	$0.056 per 1M tokens
GPT-5.6 Luna output	$0.336 per 1M tokens
GPT-5.6 Terra input	$0.56 per 1M tokens
GPT-5.6 Terra output	$3.36 per 1M tokens
GPT-5.6 Sol input	$1.40 per 1M tokens
GPT-5.6 Sol output	$8.40 per 1M tokens

Pricing can change. Confirm the current amount on the model page before a production rollout.

Best for

• high-volume assistants
• reasoning and coding
• tool-using agents

Important behavior

• There is no generic gpt-5-6 alias in this integration; choose Luna, Terra, or Sol explicitly.
• Start with Luna for low-cost workloads, Terra for balanced reasoning, and Sol for the highest-capability tier.
• Read generated text from the response output items or use your SDK's output-text helper.

Production guidance

Set an application timeout, retry only transient failures, cap output size, and record token usage. Do not put POYO_API_KEY in browser or mobile client code.

Repository map

• curl/generate.md — copy-paste request
• node/index.mjs — dependency-free Node.js example
• docs/production-notes.md — limits and rollout checklist

Links

• Try GPT-5.6 API on PoYo
• API reference
• All PoYo examples
• PoYo model catalog

License

MIT