OpenAI · Model
GPT-5.6 Luna API
GPT-5.6 Luna answers at api.apmix.ai under the id below — one key and one monthly plan, on the OpenAI and Anthropic wire formats your tools already speak. No separate OpenAI account, no per-provider bill.
Model id
openai/gpt-5.6-lunaStarterProMaxAt a glance
- Provider
- OpenAI
- Included in
- Starter, Pro, Max — from $4.99/month
- Weighted-token cost
- 0.33× — a 1,000-token exchange costs 330 weighted tokens
- Context window
- 1.1M tokens
- Free trial
- Paid plans only — the free models are the place to start
Call GPT-5.6 Luna
Set the model to gpt-5.6-luna in any OpenAI- or Anthropic-compatible client. Both base URLs accept the same apmix key.
OpenAI-compatible · Chat Completions
curl https://api.apmix.ai/v1/chat/completions \
-H "Authorization: Bearer apx_live_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "gpt-5.6-luna", "messages": [{"role": "user", "content": "Hello"}]}'Anthropic-compatible · Messages
curl https://api.apmix.ai/v1/messages \
-H "x-api-key: apx_live_YOUR_KEY" \
-H "anthropic-version: 2023-06-01" \
-H "Content-Type: application/json" \
-d '{"model": "gpt-5.6-luna", "max_tokens": 1024, "messages": [{"role": "user", "content": "Hello"}]}'Questions about GPT-5.6 Luna
- Is GPT-5.6 Luna free on apmix?
- Not on the free trial. GPT-5.6 Luna is included from the Starter plan ($4.99/month), which covers every model in the catalog with one monthly allowance. You can still start free on the free Claude models.
- Which plan includes GPT-5.6 Luna?
- Starter, Pro, Max. Each plan is a monthly allowance of weighted tokens shared across every model and every key; GPT-5.6 Luna counts at 0.33× per token.
- How do I use GPT-5.6 Luna in Claude Code, Codex CLI or Cursor?
- Point the tool at apmix — https://api.apmix.ai/v1 for OpenAI-compatible clients, https://api.apmix.ai for Anthropic-compatible ones — with your apmix key, and set the model to gpt-5.6-luna. The Docs page has copy-paste setup for each tool.