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OpenAI

GPT 5.6 Luna API

The cost-sensitive, high-volume tier of GPT-5.6. A good fit for summarization, classification, rewriting, and batch automation; choose the Sol sibling for complex professional judgment or quality-first multi-step work.

  • Reasoning
  • Function calling
  • Structured output
  • Long context
Use in Consolegpt-5.6-luna

USD

Pricing

default
input<=272k
Input$1/1M tokensCompletion Price$6/1M tokensCache Read$0.1/1M tokensCache Write$1.25/1M tokens
input>272k
Input$2/1M tokensCompletion Price$9/1M tokensCache Read$0.2/1M tokensCache Write$2.5/1M tokens

Public list prices are shown in USD. Final charges may vary by account group and usage tier.

API

Code examples

curl --location --request POST 'https://api.tokenhot.ai/v1/chat/completions' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data-raw '{
    "model": "gpt-5.6-luna",
    "messages": [
        {
            "role": "user",
            "content": "What model are you"
        }
    ]
}'

OpenAI

Related models

OpenAIOpenAIGPT 5.6 Terra

The balanced workhorse tier of GPT-5.6, combining capability and cost. Well suited to production work involving image understanding, tool use, and large source material; choose Sol for the hardest quality-first work or Luna for cost-controlled high volume.

$2.5/1M tokensOpenAIOpenAIGPT 5.5

Built for reasoning, coding, visual understanding, and agent tasks, with stronger long context, tool use, and scalable reliable output than GPT-5.4. Compared with Claude, Gemini, and Qwen flagship models, it is a strong general-purpose base for reliable automation and complex knowledge workflows.

$5/1M tokensOpenAIOpenAIGPT 5.4

Built for reasoning, coding, visual understanding, and agent tasks, with stronger long context, tool use, and scalable reliable output than GPT-5.3. Compared with Claude, Gemini, and Qwen flagship models, it is a strong general-purpose base for reliable automation and complex knowledge workflows.

$2.5/1M tokensOpenAIOpenAIGPT 5.6 SOL

The flagship GPT-5.6 tier for complex professional work and quality-first delivery. It supports image input, function calling, structured outputs, and an exceptionally large context window; consider Terra or Luna when latency or unit cost is the primary constraint.

$5/1M tokens

FAQ

Frequently asked questions

What is GPT 5.6 Luna best suited for?

GPT 5.6 Luna is suited to the input, output, and capability types listed on this page. Test production workloads before choosing it for a critical system.

How is GPT 5.6 Luna priced?

Pricing is shown in the pricing section above. Actual cost depends on usage volume, account group, and the request payload.

How can I call GPT 5.6 Luna?

Use the model ID shown above with one of the supported API protocols. Code examples are provided when usage data is available.

Get started

Build with GPT 5.6 Luna

Use in Console